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(meteorobs) NAMN VISUAL SUMMARY REPORT, Aug 07/08 1997, GRALE
NAMN VISUAL SUMMARY REPORT
DATE: Aug 07/08 1997 BEGIN: 0340UT END: 0650UT
OBSERVER : GRALE (Lewis J. Gramer)
LOCATION : Long: 71o 30' 30" W; Lat: 42o 37' 10" N; Elev: 146m
City & State: MIT Haystack Observatory, Millstone Hill, Westford, MA
RECORDING METHOD: Tape Recorder
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OBSERVED SHOWERS: Use 3 letter Code; position; RA/DEC; name
KCG NIA CAP SDA NDA SIA PER PAU
284 +58 315 -07 316 -07 347 -13 334 -05 337 -14 041 +58 350 -26
18:56+58 21:00-07 21:04-07 23:08-13 22:16-05 22:28-14 02:44+58 23:20-26
KappaCyg NIotaAqr AlphaCap SDeltAqr NDeltAqr SIotaAqr Perseids PiscisAu
(Non-IMO Showers: "UPG" Upsilon Peg 349+18 4, "AUM" Alpha UMa 169+65 3)
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OBSERVING PERIODS: (0 = none seen; / = shower not watched)
PERIOD(UT) FIELD Teff F LM PER KCG NDA SDA NIA SIA CAP PAU SPOR
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0340-0500 21h+45 1.05h 1.00 6.24 16 2 0 0 1 0 1 / 13
0501-0650 21h+45 1.32h 1.01 6.23 13 0 4 1 0 0 2 / 11
TOTAL: 29 2 4 1 1 0 3 / 24
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MAGNITUDE DISTRIBUTIONS:
SHOWER -7 -6 -5 -4 -3 -2 -1 0 +1 +2 +3 +4 +5 +6 TOTAL
KCG 1 0.5 0.5 2
NIA 1 1
CAP 1 0.5 1.5 3
SDA 0.5 0.5 1
NDA 1 0.5 1 1.5 4
SIA 0
PER 1 1 0.5 1 2.5 9.5 8.5 4 1 29
SPOR 3.5 2.5 8.5 4.5 5 24
Total: 2 1 0.5 1 7 14 21.5 11 6 64
"SPORADIC" (SPOR + NON-IMO) MAGNITUDE DISTRIBUTION: (see Remarks)
SHOWER -7 -6 -5 -4 -3 -2 -1 0 +1 +2 +3 +4 +5 +6 TOTAL
"UPG" 1 1 2
"AUM" 0
SPOR 3.5 1.5 7.5 4.5 5 24
Total: 3.5 2.5 8.5 4.5 5 24
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SKY OBSCURED:
PERIOD 1 k = 0.000
%0 From: 0340UT To: 0500UT
PERIOD 2 k = 0.009
%5 From: 0630UT To: 0635UT Time: 5 min
%10 From: 0645UT To: 0650UT Time: 5 min
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PERIOD 1 PERIOD 2
DEAD TIME: 00h06m 00h05m
BREAKS : 00h10m 0425-0435 00h26m 0554-0620
00h01m 0456-0457
TOTAL : 00h17m 00h31m
MEAN MAGNITUDES
SPOR = +3.21
PER = +2.16
NDA = +1.75 (sample of 4 meteors)
SDA = +3.50 (sample of 1 meteor)
NIA = +3.00 (sample of 1 meteor)
SIA = N/A (sample of 0 meteors)
CAP = +2.17 (sample of 3 meteors)
KCG = +2.75 (sample of 2 meteors)
[Non-IMO:
"AUM" = N/A (sample of 0 meteors)
"UPG" = +2.50 (sample of 2 meteors)
SPOR = +3.27 (sample of 22 meteors)
[
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LIMITING MAGNITUDE:
STAR STAR
TIME AREA COUNT LM (mins in effect)
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0340 13 15 6.1 20
0415 14 18 6.3 35
0500 14 17 6.3 40
0500 7 17 6.2 40
0530 1 14 6.1 27
0530 14 17 6.3 27
0554 14 17 6.3 12
0620 14 17 6.3 15
0650 7 17 6.2 15
MEAN LIMITING MAGNITUDE: 6.24
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METEOR DATA
# TIME(UT) MAG SPEED COLOR SHOWER TRAIN (sec) DCV CONST (*)
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1 0348 3 3 PER 20 Cyg
2 0349 2 2 KCG 10 Dra
3 0352 1 4 Lit Yel PER 1 30 UMA
4 0354 4 4 PER 20 Dra
5 0354 3 4 PER 10 UMi
6 0355 2.5 4 PER 20 Uma
7 0355 3.5 3 SPOR 10 Dra
8 0358 4 2.5 SPOR 10 Her
9 0358 1.5 3 SPOR 50 Uma
10 0359 3 4 PER 20 Dra-Umi
11 0403 2.5 4 PER 30 Peg
12 0408 5 3 SPOR 0 Cyg
13 0409 0.5 4 Pal Grn PER 3 30 Her-Oph
14 0413 4.5 3 SPOR 0 Cyg
15 0417 1 2 SPOR 20 Dra
16 0421 1 3 SPOR 40 Boo
17 0421 2 4 PER + 40 Umi
18 0423 3 4 PER 20 Lyr
19 0424 2 2 SPOR 30 Boo
20 0437 2 4 PER 40 Umi
21 0439 3 2 NIA 20 Aql
22 0439 2.5 4 PER 10 Oph
23 0442 2 4 PER 40 UMa
24 0443 4.5 2 SPOR 0 Cyg
25 0444 3.5 2 KCG 10 Lyr
26 0444 5 3 SPOR 0 Cyg
27 0446 4 2.5 SPOR 10 Umi
28 0447 -2 4 PER 0.5 30 CrB
29 0448 3 4 SPOR 10 Oph
30 0449 5 3 SPOR 0 Cyg
31 0451 3 4 PER 30 Boo-UMa
32 0452 2.5 2 CAP 0 Cyg
33 0457 4 4 PER 10 Cep
34 0502 3.5 3 SPOR 20 Her
35 0505 3 2.5 SPOR 20 Her
36 0505 3 3 SPOR 30 UMa
37 0507 2 4 PER 1 Pal Grn 0 Cyg
38 0509 3.5 3.5 SDA 0 Lyr->Dra
39 0512 4 3.5 NDA 0 Cyg
40 0512 1 2 Org CAP 30 UMi
41 0515 3 4 PER 10 Her
42 0516 3 2 CAP 10 Dra
43 0516 2 4 PER + 0 Cyg
44 0519 4 4 PER 10 Her
45 0522 3.5 3.5 NDA 0 Cyg
46 0524 4 4 PER 20 Cep
47 0524 -0.5 4 White PER 30 Aql
48 0524 2.5 3 NDA 20 Cap
49 0532 5 3 SPOR 0 Cyg
50 0538 1 3 SPOR + 50 Per
51 0538 1 4 PER 30 Her
52 0542 3 4 SPOR 10 Dra
53 0548 2.5 4 PER + 10 Vul (*)
54 055125 -3 3 NDA 1 60 Cap (*)
55 0551 3 4 SPOR 0 Cap (*)
56 063033 -3 4 Org-Grn PER 1 70 Lac
57 0634 2 4 PER 20 Aqr
58 0634 3.5 3.5 SPOR 0 Cyg
59 0636 3 3 SPOR 0 Cyg
60 0638 2.5 4 PER 20 Cep
61 0646 3 0 SPOR 0 Cyg
62 0646 5 4 PER 0 Cyg (*)
63 0646 2 4 PER 40 Aur-Per
64 0647 2 4 SPOR 10 Cyg-Dra (*)
## 0650 ENDED SESSION
"+" - Train duration of "+" indicates a wake - too short to measure.
(*) - Meteors marked by asterisks have additional data under Remarks
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VELOCITY SCALE (SPEED):
0 = Stationary
1 = Very Slow
2 = Slow
3 = Medium
4 = Fast
5 = Very Fast
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REMARKS: Seeing throughout session was Medium Poor (4 of 10).
Dead time of 10 seconds was deducted per recorded meteor.
Meteor #53 was noted as a "PER", although this observer would formerly
have considered it too short to be a shower member.
Meteor #54 was seen through interfering haze.
Meteor #55 was noted as a possible member of the non-IMO shower "UPG",
(Upsilon Pegasids) based on projection, distance, and putative speed.
Meteor #62 was noted as a "PER", although it was only 10 degrees long,
and was observed starting 40 degrees from the radiant...
Meteor #64 was noted as a possible member of the non-IMO shower "UPG",
(Upsilon Pegasids) based on projection, distance, and putative speed.
<END OF REPORT>
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