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(meteorobs) Fwd: meteorobs-digest V1 #234
There were indications that some of you didn't receive this, so here it is
again! Clear skies,
Lew
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Subject: meteorobs-digest V1 #234
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Precedence: bulk
meteorobs-digest Tuesday, 26 November 1996 Volume 01 : Number 234
- ----------------------------------------------------------------------
From: kronkg@medicine.wustldot edu (Gary W. Kronk)
Date: Tue, 26 Nov 1996 09:13:30 -0600
Subject: Re: (meteorobs) geminid max
I agree with Norman on the Geminids being my favorite meteor shower. I have
observed this meteor shower more than any other thanks to the crystal clear
(and cold) Decembers in my region. The rates are very consistent from year
to year and the darker skies enable the colors to almost jump out at you! I
will admit I do like the Perseids as well, but August in the St. Louis area
is usually inflicted with heat and high humidity levels. The LM's are
rarely better than 5.5 and it is rather uncomfortable. Since I began
seriously observing meteors in 1974 I have had only three occasions where
unusually clear skies were present on the night of the Perseid maximum.
Gary
- ------------------------------
From: GeoZay@aoldot com
Date: Tue, 26 Nov 1996 10:17:03 -0500
Subject: (meteorobs) Who to call for Discovery?
By any chance does anyone on this list know a phone number to call if an
astronomical discovery is made? Bob and I often thought about having a phone
number available at my observatory just in case we see something like a Nova
or Supernova while observing meteors. I have Brian Marsden's email address
for such an event, but I won't have access to my computer while observing.
bob has a cellular phone out there ...so....a phone number is what I want to
have on hand. Thanks!
George Z.
- ------------------------------
From: Stop Light Pollution! <GLIBA@grossc.gsfc.nasadot gov>
Date: Tue, 26 Nov 1996 10:37:58 -0500 (EST)
Subject: Re: (meteorobs) geminid max
On 26-NOV-1996 at 10:26:08.36 EST Gary Kronk said:
>....[good stuff about Geminids deleted] I will admit I do like the Perseids
>as well, but August in the St. Louis area is usually inflicted with heat and
>high humidity levels. The LM's are rarely better than 5.5 and it is rather
>uncomfortable. Since I began seriously observing meteors in 1974 I have had
>only three occasions where unusually clear skies were present on the night of
>the Perseid maximum.
I have experianced the same thing with the Perseids. This is why I would say
that this years' Leonids was equal to the best Perseid maxima I have seen,
with the exception of the 1967 Perseids when I saw about 100 ZHR
GWG
- ------------------------------
From: Lew Gramer <dedalus>
Date: Tue, 26 Nov 96 10:45:37 -0500
Subject: Re: (meteorobs) Who to call for Discovery?
George's idea is a REALLY good one, actually! Remember that SN 1987A in the
Large Magellanic Cloud wasn't discovered (photographically) till it reached *5th
magnitude* (about 12 hours after it first reached 10th magnitude :>).
Unfortunately, a look over the Web site of the "Central Bureau of Astronomical
Telegrams" revealed that they DON'T provide a phone number for reporting
discoveries (comets, supernovae, novae, asteroids, etc). Instead, they want to
receive postal mail, or preferrably e-mail or a Web-form report! The email
address is:
cbat@cfa.harvarddot edu
or else a Web discovery form can be filled out at:
http://cfa-www.harvarddot edu/cfa/ps/DiscoveryForm.html
Now George, if you find a supernova in our galaxy with your eyes before I find
one in an external galaxy with my scope, I'll never forgive you! :)
By the way, here's an excerpt from the "International Supernova Network" Web
page. Not all of it is applicable to an INTRA-galactic visual SN discovery, but
these are good verification procedures to consider anyway. Anyway, IF you follow
all the applicable steps below, and you still believe you've found something, my
advice is to drive to the nearest computer and send a report! Otherwise, maybe
some of the subscribers to 'meteorobs' can exchange home numbers, and if one of
us sees something, some of the others can access their computers, check the
object, and perhaps send out a report.
- -
------------------------------------------------------------------------------
Should you spot a suspect star while hunting for SNe...
(1) You should check all archive references you have in your library or on your
PC [for a list of atlases and galaxy charts please see bibliography]
(2a) You should check for possible asteroids using commercially available
programs... [i.e.: Megastar, Guide, etc.]
(2b) or by checking for motion [wait for at least an hour since first
observation]
(4) You should check for a possible variable star
(5) You should obtain an image of the galaxy, using your equipment or help from
other amateurs [a digital image is great!]
(6) You should check your records for the previous observations of the same
galaxy [when was the last time you observed?]
(7) You should check AND double check the suspect star approximate offset from
the nucleus
(8) You should estimate approximate magnitude of suspect star and limiting
magnitude of your equipment [an error of +/- half a magnitude is ok if you can't
do photometry]
(9) You should ALWAYS take a second look or a second image of the suspect star.
If you STILL think you've found a supernova.... If you did all steps (1) to
(9).... AND you are still 100% convinced that it could be a supernova....
THEN you can use this form[Web link] to report the suspect star to the ISN
mailing list followed, if you wish, by a short message, AND you can send a
message to the International Astronomical Bureau.
[ALWAYS include in your message name and address, equipment used, date of
observation, galaxy, offset from nucleus, magnitude, what did you do and
didn't do to check the suspect star and date of previous observation].
- ------------------------------
From: kronkg@medicine.wustldot edu (Gary W. Kronk)
Date: Tue, 26 Nov 1996 09:48:12 -0600
Subject: Re: (meteorobs) Who to call for Discovery?
The interesting thing about the Central Bureau is that they seem to
recommend that discoveries are announced through e-mail channels, but there
are three phone numbers that are given on the current issues of the IAU
Circulars, which used to be the main numbers recommended for discovery
announcements. In fact, the Circulars note that they should be used for
emergencies only. They are
(617) 495-7244
(617) 495-7440
(617) 495-7444
Hope this helps, George!
Gary
- ------------------------------
From: Joseph_Assmus@PACE-POST.ucsddot edu
Date: Tue, 26 Nov 1996 09:30:00 -0800
Subject: (meteorobs) NAMN Meteor Report: Nov 16/17(Assmus)
Here are the full results of my observations on Non 16/17, 1996 during
the peak night of this year's LEONIDs. I have previously calculated ZHRs
and they have appeared in a separate post. Also, I modified somewhat the
NAMN e,mail report form. (no speed estimates nor plotting was done. Hope
that's ok with you Mark.) Included instead are a column for noted color and
whether the meteor seen had a wake or a persistent train (pt). If a
persistent train was noted, the duration in seconds is given.
***************************
NAMN VISUAL SUMMARY REPORT
***************************
DATE: Nov 16/17 BEGIN: 0645 UT END: 1330 UT
OBSERVER: Assmus, Joseph
LOCATION: Long: 116o38'13" W ; Lat: 32o50'00" N
City & State: Descanso, CA (George Zay Observatory)
Elevation: 1003m
RECORDIN METHOD: Manual
- - ---------------------------------------------------------------------
OBSERVED SHOWERS: 3-letter code; radiant position
LEO 150o +20o
NTA 63o +23o
STA 61o +16o
- - ---------------------------------------------------------------------
OBSERVING PERIODS: 0 = none seen; / = shower not watched.
PERIOD(UT) FIELD Teff F LM LEO NTA STA SPO Tot
- - ---------------------------------------------------------------------
0645-0800 55/+20 1.20 1.00 6.3 2 3 1 7 13
0800-0900 74/+20 0.94 1.00 6.1 15 3 1 3 22
0900-1000 88/+20 0.95 1.00 6.1 12 0 0 7 19
1145-1245 130/+20 0.93 1.00 6.0 18 5 0 2 25
1245-1330 145/+20 0.70 1.00 6.0 13 0 0 5 28
Total 4.72 6.12 60 11 2 24 97
- - ---------------------------------------------------------------------
MAGNITUDE DISTRIBUTIONS:
SHOWER -7 -6 -5 -4 -3 -2 -1 0 +1 +2 +3 +4 +5 +6 TOTAL
LEO - - - - 2 5 2 12 6 15 8 8 2 - 60
NTA - - - - - - - 1 - 5 5 - - - 11
STA - - - - - - - - - - - - 2 - 2
SPO - - - - - - - - 5 1 9 6 3 - 24
TOT - - - - 2 5 2 13 11 21 22 14 7 - 97
- - ---------------------------------------------------------------------
Mean Magnitude for Shower Members and Sporadics:
Leonids = 1.4
N. Taurids = 2.27
S. Taurids = 5.00
Sporadics = 3.04
- - ---------------------------------------------------------------------
SKY OBSCURED:
___0__% _____%
FROM: 0645 UT FROM: UT
TO: 1330 UT TO: UT
Note: partial cover (~15%) by high cirrus for 1 hr or so, reduced LMs
- - ---------------------------------------------------------------------
DEAD TIME: 0.0
BREAKS: 90 min sleep from 1000-1330 UT
- - ---------------------------------------------------------------------
LIMITING MAGNITUDE:
STAR STAR
TIME AREA COUNT LM
0645 8 16 6.3
0730 8 15 6.2
0745 8 16 6.3
0815 8 12 6.1
0915 8 12 6.1
1000 8 12 6.1
-Break-
1145 8 11 6.0
1245 8 11 6.0
MEAN LIMITING MAGNITUDE: 6.12
- - ---------------------------------------------------------------------
METEOR RAW DATA: NOTE: [pt=persistent train (duration in sec)]
# TIME(UT) MAG COLOR SHOWER WAKE REMARKS
--+--------+-------+------+---------+-----------+-----------------
1 0646 4 wht SPO n
2 0648 2 wht SPO y
3 0700 1 yel SPO pt(2s)
4 0704 3 wht NTA y
5 0705 4 wht SPO n
6 0707 -2 orng LEO pt(4s) trav'd 160 deg in 5 sec!!
7 0719 3 wht NTA n
8 0720 5 wht SPO n
9 0724 5 wht SPO n
10 0726 3 wht NTA n
11 0740 3 wht SPO n
12 0745 -2 wht LEO y
13 0800 5 wht STA n
14 0803 4 wht LEO y
15 0812 4 wht LEO n
16 0815 0 wht LEO y
17 0816 4 wht LEO n
18 0820 3 wht NTA n
19 0823 4 wht LEO n
20 0826 0 wht LEO y
21 0828 3 wht SPO n
22 0829 0 O-Y LEO pt(3s)
23 0831 -1 O-Y LEO pt(5s) terminal burst
24 0837 -3 wht LEO pt(1s)
25 0838 5 wht STA n
26 0840 4 wht SPO n
27 0840 3 wht LEO y
28 0841 3 wht NTA n
29 0842 2 wht LEO y
30 0843 2 wht NTA pt(3s)
31 0844 1 wht LEO n
32 0852 0 wht LEO pt(2s)
33 0855 3 wht LEO n
34 0856 1 wht LEO y
35 0858 5 wht SPO n
36 0905 4 wht SPO n
37 0907 3 wht LEO n
38 0910 3 wht LEO y
39 0921 1 wht SPO pt(2s)
40 0924 1 wht SPO n
41 0925 0 orng LEO pt(5s)
42 0927 4 wht SPO n
43 0930 -2 blue LEO pt(4s) double terminal burst
44 0931 0 blue LEO y
45 0936 3 wht SPO y
46 0938 -2 wht LEO pt(5s) terminal burst
47 0939 0 wht LEO pt(3s)
48 0943 2 wht LEO y
49 0943 2 wht LEO n
50 0945 4 wht LEO n
51 0947 -1 wht LEO pt(3s)
52 0952 3 wht SPO n
53 0954 4 wht SPO
54 0957 4 wht LEO
----- 1000-1145 UT: Unscheduled Sleep Break (#$@%#^%$!) -----
55 1150 2 wht LEO n
56 1200 2 wht LEO y
57 1206 2 wht LEO n
58 1207 0 wht NTA n
59 1207 2 wht LEO y
60 1208 3 wht LEO n
61 1212 0 wht LEO y
62 1214 3 wht SPO n
63 1215 2 wht NTA n
64 1216 0 wht LEO y
65 1217 -3 blue LEO pt(7s) big terminal burst
66 1218 1 wht LEO n
67 1220 2 wht LEO pt(3s)
68 1224 2 wht LEO n
69 1225 2 wht LEO n
70 1226 4 wht LEO n
71 1228 2 wht NTA n
72 1229 2 wht NTA n
73 1230 2 wht LEO n
74 1230 1 wht SPO n
75 1231 2 wht LEO n
76 1232 5 wht LEO n
77 1234 2 wht NTA n
78 1240 4 wht LEO n
79 1243 2 wht LEO n
80 1249 1 wht LEO y
81 1250 5 wht LEO n
82 1253 1 wht LEO y
83 1254 2 wht LEO n
84 1255 3 wht SPO n
85 1258 3 wht LEO y
86 1259 1 wht LEO y
87 1300 1 wht SPO n
88 1303 3 wht SPO y
89 1304 2 wht LEO n
90 1307 3 wht LEO n
91 1311 3 wht SPO n
92 1312 0 grn LEO pt(3s)
93 1314 -2 blue LEO pt(8s)
94 1319 0 blue LEO pt(2s)
95 1322 3 wht SPO n
96 1323 3 wht LEO n
97 1325 0 wht LEO n
- - --------------------------------------------------------------------
WAKE (or PT) by MAGNITUDE TABLE (Leonid Only)
Wake or Persistent Train
NO YES
-----------------------
-3 | 0 2
|
-2 | 0 5
|
-1 | 0 2
|
0 | 1 11
|
MAGNITUDE 1 | 1 5
|
2 | 10 5
|
3 | 5 3
|
4 | 7 1
|
5 | 2 0
-----------------------
26 34
(43%) (57%)
I calculated a Spearman Rank Corr Coeff (no distributional assumptions)
between the magnitude and wake/pt.
Spearman r = - 0.65066
At least for the Leonids, there is sig relation between apparent brightness
of a meteor and whether or not you see a wake or pt. In Lovell's book
"Meteor Astronomy" he discusses this, so I thought I go ahead see what my
data show.
----------------------------------------------------------------------------
<END OF REPORT>
- ------------------------------
From: ZQZK15A@prodigydot com ( GREGG M PASTERICK)
Date: Tue, 26 Nov 1996 13:00:22, -0500
Subject: (meteorobs) 11/26 Ziggy..............
Folks,
Be sure to include today's comics in the newspaper you carry into the
bathroom...................Ziggy, particularly.
Cold, wet, beneath a milky white sky,
Gregg
http://pages.prodigydot com/daddy
- ------------------------------
From: Joseph_Assmus@PACE-POST.ucsddot edu
Date: Tue, 26 Nov 1996 10:24:00 -0800
Subject: Re[2]: (meteorobs) LEONIDS-1996: ZHRs in So. Calif
NORM writes:
>If my results were run through the formula, I would probably shrink to ZHR
>15-20. Let's get real here!! That's not the way it was!
Well, Norm,
Thank you for your comments. First, let me say, Bob has told me that
you are possibly one of the most experienced and senior meteor observers on
this list (if not in the USA) so I greatly appreciate your time to look at
my post and respond. Though I'm still debating how helpful "lets get real"
and "that's not the way it was!" are as scientific criticism.
In the presentation of our data, I made no claims of "These data
reflect the way it REALLY was". I presented our observational results and
clearly indicated using the methodology as outlined in the 1994
Jenniskens paper. Seems like you really don't have issue with our data,
rather you have clear problems with the rationale and development of ZHR
calcs as outlined by Dr Jennisken's. I agree with your criticism of the
overcorrecting for lower radiant elavtions. None of our calcs were done
with radiant lower than 10deg. I also have a problem, as you do, with what
happens to ZHR calcs when sky Lm deteriorates. In that last interval, Bob's
Lm drops to 5.77, yet he sees 35 LEO, crank thru the formula and ZHR=67.78.
Even considering a large SEM (11.46), I agree with you fully that this is
suspect. Lastly, no one answered my question with regard to Cp. Re-reading
parts of Lovells book from the 50s on Meteor Astronomy, I see he talks about
a Cp but his formulation slightly differs with that from the Jennisken's
paper (though I think the idea is similar). Norm, what are your thoughts
about an observer-dependent perception correction factor?
Joseph
- ------------------------------
From: Mark Davis <MeteorObs@Charlestondot net>
Date: Tue, 26 Nov 1996 14:31:14 -0500
Subject: (meteorobs) NAMN Meteor Report: Nov 16/17 (HALL)
***************************
NAMN METEOR SUMMARY REPORT
***************************
Date: 16/17 Nov. 1996
Begin: 4h 50m End: 11h 00m UT
Observer: Cathy Hall
Site Coordinates: Longitude 77 16 West; Latitude 44 23 North
Elevation: 550 feet
Site Location: near Thomasburg, Ontario, Canada
- - -----------------------------------------------------
Method of Recording: Tape Recorder
Dead Time: 15.75 minutes
Teff: 5.74 hours total
Recording time/meteor: est.5 seconds
Breaks: None
% Sky obscured: 10h 36m until 10h 48m at 20%
10h 48m until 11h 00m at 25%
Observed showers:
LEO
NTA
STA
- - -----------------------------------------------------
Observing Periods: 0 = none seen; / = shower not watched.
UT Time Field Teff F LM LEO NTA STA SPO
0450-0600 7h30+30 .97 1.00 5.90 11 1 0 10
0600-0700 7h30+30 .97 1.00 5.90 17 / / 5
0700-0800 8h30+25 .95 1.00 5.90 25 / / 12
0800-0900 9h30+25 .93 1.00 5.90 45 / / 6
0900-1000 10h30+20 .96 1.00 5.90 22 / / 9
1000-1100 11h30+15 .96 1.33 5.10 19 / / 9
MAGNITUDE DISTRIBUTIONS:
-4 -3 -2 -1 0 +1 +2 +3 +4 +5 Total Mean
LEO 2 3 1 3 12 28 50 15 17 8 139 1.86
NTA 0 0 0 0 0 0 1 0 0 0 1 2.00
SPO 0 0 0 2 0 1 5 11 28 4 51 3.41
- - -------------------------------------------------------
Limiting Magnitudes:
Time Area Count LM
0450 4 11 5.9
0500 - - 5.9 est.
0530 - - 5.9 est.
0600 4 12 6.1
0630 4 11 5.9
0700 - - 5.9 est.
0730 4 12 6.1
0800 - - 5.9 est.
0830 16 7 5.9
0900 16 7 5.9
0930 16 7 5.9
1000 16 6 5.7
1015 16 5 5.1
1030 16 5 5.1
1050 16 3 4.6 or less
Note: forgot to check several times for LM, hence estimated where indicated.
- - --------------------------------------------------------
METEOR DATA:
General notes:
- - - where degrees of train specified, duration was 1-1.5 seconds unless
otherwise specified.
- - - all colours white unless specified.
- - - "low" refers to very close to horizon.
- - - "near rad" refers to right at radiant.
- - - "short" refers to less than 1 degree long.
- - - showers observed were LEO, and NTA and STA until about 6.30 UT when
radiant positions for NTA and STA moved out of my field of view.
Weather notes:
- - - limiting magnitudes as noted.
- - - 9.00 UT - getting glare from Venus, glare up to about 20 degrees from
horizon.
- - - 9.10 UT - sky degrading a bit, but LM unchanged.
- - - 9.50 UT - sky degrading, light cirrus moving in from west, LM change as
noted, glare from Venus up to about 20 degrees from horizon.
- - - 10.36 UT - about 20% cloud in my area.
- - - 10.48 UT - about 25% cloud in my area and light cirrus.
Notes on specific bright meteors:
- - - Meteor #109, 8.38 UT, -1 SPO, 15 degree train.
- - - from Polaris through the non-pointer bowl stars of the Dipper, through
towards Beta Leo.
- - - gorgeous!!
- - - Meteor #111, 8.39 UT, -1 SPO, 25 degree train.
- - - from below Beta Leo, headed towards the pointer stars of the Dipper.
- - - very long, very spectacular!
- - - Meteor #118, 8.48 UT, -4 LEO, 20 degree train.
- - - burst at end of meteor.
- - - persistent train, about 3 min. duration.
- - - train distorted to "V" shape.
- - - Meteor #169, 10.16 UT, -3 LEO, 15 degree train.
- - - burst at end of meteor.
- - - persistent train, over 1 min. duration.
- - - Meteor #175, 10.22 UT, -4 LEO, 15 degree train.
- - - persistent train, about 30 sec. duration.
- - - white, spectacular!
METEOR DATA:
# HR MIN MAG SPE TRAIN SHR NOTES
1 4 53 4 3 LEO
2 4 59 4 3 SPO
3 5 02 2 3 15d LEO
4 5 07 4 3 SPO
5 5 08 2 3 1s LEO
6 5 09 4 3 SPO
7 5 12 -3 4 8d,20s LEO
8 5 15 1 4 15d,3s LEO
9 5 19 2 4 20d LEO
10 5 33 1 4 20d,2s LEO
11 5 37 4 4 SPO
12 5 41 4 3 SPO
13 5 43 2 5 2d,5s SPO
14 5 44 2 4 4d,2s LEO
15 5 46 3 4 SPO
16 5 46 3 4 SPO
17 5 47 2 4 15d,2s LEO
18 5 50 4 4 SPO
19 5 53 2 4 15d LEO
20 5 53 2 4 20d LEO
21 5 54 1 3 20d SPO
22 6 00 2 2 NTA
23 6 02 2 4 15d LEO
24 6 10 2 4 8d LEO
25 6 10 3 4 3d,2s LEO
26 6 15 4 4 SPO
27 6 16 1 4 20d LEO
28 6 16 4 3 SPO
29 6 16 2 4 15d LEO
30 6 18 4 3 LEO short
31 6 19 2 3 LEO short
32 6 21 2 4 4d LEO
33 6 22 4 4 SPO
34 6 27 0 4 8d LEO
35 6 33 5 3 SPO
36 6 34 4 2 SPO
37 6 35 2 4 5d LEO
38 6 35 2 4 4d LEO
39 6 36 3 4 LEO
40 6 41 2 4 8d LEO
41 6 42 2 4 3d LEO near rad.
42 6 43 1 4 8d LEO
43 6 44 2 4 15d LEO
44 6 47 0 4 15d LEO
45 7 06 4 4 SPO
46 7 07 2 4 3d LEO
47 7 09 3 3 SPO
48 7 10 2 3 SPO
49 7 10 3 3 SPO
50 7 12 1 4 8d LEO
51 7 16 3 3 SPO
52 7 16 1 4 5d LEO
53 7 16 2 4 5d LEO
54 7 19 1 4 10d LEO
55 7 22 3 3 SPO
56 7 22 2 4 15d LEO
57 7 25 3 4 15d LEO
58 7 26 1 4 10d LEO
59 7 26 3 3 SPO
60 7 27 4 4 LEO
61 7 28 2 4 8d LEO
62 7 29 0 4 3d LEO yellow
63 7 29 -1 4 20d LEO
64 7 29 4 4 LEO
65 7 29 4 3 SPO
66 7 30 2 4 LEO
67 7 31 2 4 10d LEO
68 7 31 4 3 SPO
69 7 32 5 5 SPO
70 7 33 1 4 20d LEO
71 7 37 1 4 10d LEO
72 7 38 3 4 LEO
73 7 40 0 4 20d LEO
74 7 42 1 4 LEO low
75 7 43 2 3 SPO
76 7 46 2 4 10d LEO
77 7 49 1 4 15d LEO
78 7 55 4 2 SPO
79 7 57 2 4 LEO low
80 7 58 4 4 LEO
81 8 00 4 4 LEO
82 8 02 5 4 LEO
83 8 03 1 4 15d LEO
84 8 04 2 5 LEO (simult. and almost parallel, no. 84
85 8 04 3 5 LEO and no. 85)
86 8 06 2 4 8d LEO wake
87 8 08 0 4 10d LEO
88 8 12 0 4 10d LEO
89 8 12 -2 4 25d LEO
90 8 12 0 4 15d LEO
91 8 14 0 4 15d LEO
92 8 14 2 4 LEO
93 8 18 2 3 SPO
94 8 20 4 4 LEO
95 8 20 2 4 3d LEO
96 8 22 2 3 3d LEO
97 8 25 4 4 LEO
98 8 26 4 4 LEO
99 8 27 2 4 LEO
100 8 31 5 5 LEO short
101 8 31 4 5 LEO short
102 8 31 5 5 LEO short
103 8 31 5 5 LEO short
104 8 31 5 4 SPO
105 8 32 -3 4 4d LEO yellow! near rad.
106 8 35 3 4 LEO low
107 8 36 5 4 LEO
108 8 37 4 4 LEO
109 8 38 -1 3 15d SPO see notes
110 8 38 2 4 15d LEO
111 8 39 -1 3 25d SPO see notes
112 8 41 4 3 1d LEO near rad.
113 8 41 3 4 LEO
114 8 41 5 4 LEO
115 8 44 1 4 LEO
116 8 47 2 4 LEO
117 8 47 3 4 LEO
118 8 48 -4 4 20d,3min. LEO see notes
119 8 48 2 4 LEO
120 8 48 4 4 LEO
121 8 49 2 4 LEO
122 8 51 2 4 LEO
123 8 51 5 3 SPO
124 8 52 2 4 4d LEO
125 8 52 2 3 SPO
126 8 52 2 4 10d LEO
127 8 53 5 4 1/2d LEO near rad.
128 8 54 0 4 15d LEO
129 8 57 1 4 10d LEO
130 8 59 2 4 LEO
131 9 00 4 4 LEO
132 9 00 5 4 LEO
133 9 04 2 4 10d LEO
134 9 10 1 4 5d LEO
135 9 11 3 3 SPO
136 9 12 4 2 SPO
137 9 12 4 2 SPO
138 9 13 3 4 5d LEO
139 9 14 1 4 15d LEO
140 9 15 1 4 5d LEO
141 9 15 4 3 SPO
142 9 16 3 4 LEO
143 9 16 4 4 LEO
144 9 17 2 4 LEO
145 9 17 1 4 5d LEO wake
146 9 21 2 4 10d LEO
147 9 25 1 4 15d LEO
148 9 27 1 4 15d LEO
149 9 32 4 3 SPO
150 9 32 1 4 LEO
151 9 32 0 4 10d LEO
152 9 34 1 4 5d LEO
153 9 34 2 4 LEO
154 9 37 4 4 SPO
155 9 38 4 3 SPO
156 9 38 0 4 LEO
157 9 38 4 4 SPO
158 9 40 4 4 LEO
159 9 49 3 4 LEO
160 9 50 2 4 1/2d LEO near rad.
161 9 55 1 4 10d LEO
162 9 56 4 4 SPO
163 9 58 -1 4 8d,6s LEO
164 10 02 3 4 SPO
165 10 05 3 4 LEO
166 10 09 1 4 15d LEO
167 10 10 4 3 SPO
168 10 12 1 4 4d LEO
169 10 16 -3 4 15d,>1min. LEO see notes
170 10 16 3 4 1/2d LEO
171 10 18 3 4 LEO
172 10 19 2 4 LEO
173 10 19 2 4 LEO
174 10 21 4 3 SPO
175 10 22 -4 4 15d,30s LEO see notes
176 10 30 4 3 SPO
177 10 31 4 4 LEO
178 10 34 3 4 LEO
179 10 35 4 3 SPO
180 10 36 2 4 LEO
181 10 39 3 4 SPO
182 10 40 1 4 10d LEO
183 10 40 0 4 10d LEO
184 10 41 2 4 LEO
185 10 44 4 3 SPO
186 10 46 3 3 SPO
187 10 46 2 4 LEO
188 10 48 1 4 4d LEO
189 10 49 2 4 8d LEO
190 10 51 4 3 SPO
191 10 56 -1 4 LEO
- - ----11 00 STOP ----
<END OF REPORT>
- ------------------------------
From: LUNRO.IMO.USA@prodigydot com (MR ROBERT D LUNSFORD)
Date: Tue, 26 Nov 1996 13:46:14, -0500
Subject: Re: (meteorobs) Who to call for Discovery?
- - -- [ From: Robert Lunsford * EMC.Ver #2.5.1 ] --
By any chance does anyone on this list know a phone number to call if an
astronomical discovery is made? Bob and I often thought about having a
phone number available at my observatory just in case we see something
like a Nova or Supernova while observing meteors. I have Brian Marsden's
email address for such an event, but I won't have access to my computer
while observing. bob has a cellular phone out there ...so....a phone
number is what I want to have on hand. Thanks! George Z.
George,
Interesting question. I keep the toll free number for the AAVSO with me
in case something like this occurs. The number is 1-800-642-3883. I will
also now include the numbers provided by Gary for the IAU.
Bob
- ------------------------------
From: "Thomas Wojack" <pued@msndot com>
Date: Sun, 26 May 96 14:42:18 UT
Subject: (meteorobs) Recording Meteors
Since it takes me 60>seconds to record each meteor, I would be eaten alive
during major showers(Geminids,Leonids)! Here is the easiest way of recording
meteors I have ever seen(I invented this. I *did not* get this from someone
else.)
I found out a year ago that my computer has a"tape recorder". I believe it
will record for an unlimited length. You can store hours of recording on a
floppy disk!
Well, in the last month or so, I have learn the basics of electronics. For my
family, have made the following:a clock alarm, a doorbell, and a security
system. Well, for the last 10 days I have been trying to think how I could
link meteor recording to electronics to make it easier.
Here is my novel idea...
I attached a buzzer to my speakerphone on the computer. So, when the buzzer
goes off, the computer records it. I attached a transformer to the buzzer for
electrical power. The wire goes outside, and the operator only needs a
switch. When the switch goes on, the buzzer goes on, and the computer records
it.
- -
------------------------------------------------------------------------------
- - -----------------------------------------------------------
OPERATION
- -
------------------------------------------------------------------------------
- - ----------------------------------------------------------
You see a mag 2 meteor,speed 2, white, 1/2 second train, which is a geminid.
- -
------------------------------------------------------------------------------
- - ----------------------------------------------------------
1.You buzz for 5 seconds(This signals that just a few seconds ago, you saw the
meteor. When you go back an analyze the data, the program has a timer, so you
can determine when the meteor occured, accurate within 5 seconds.).
2.You buzz 3 times, each interval is 1 second long(This signals
magnitudedot below is a chart).
buzzes mag
- - ---------------------------------
1 0
2 1
3 2
4 3
5 4
6 5
7 6
8 -1
9 -2
10 -3,etc.
- - --------------------------------
3.You buzz 3 times(This signals speed, using the mag scale.).
4.You buzz once(This signals color. A sample chart is below.).
buzzes color
- - ----------------------------------------------------------
1 white
2 red
3 orange
4 green
5 blue
- - ---------------------------------------------------------
5.You buzz 2 times(This signals train length, based on the chart below.).
buzzes length
- - --------------------------------------------------------------
1 1/4 second
2 1/2 second
3 3/4 second
4 1 second
5 2 seconds,etc.(trains into the minutes may
become troublesome!)
- - -----------------------------------------------------------------
6.You buzz ? times(This signals shower. The charts will vary, of course.).
- -
------------------------------------------------------------------------------
- - ---------------------------------------------
Please let me know what you think about this!!!
Jonathan
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End of meteorobs-digest V1 #234
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