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(meteorobs) NAMN VISUAL SUMMARY REPORT, Aug 06/07 1997, GRALE
NAMN VISUAL SUMMARY REPORT
DATE: Aug 06/07 1997 BEGIN: 0500UT 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
283 +58 315 -06 315 -07 347 -14 333 -06 336 -15 040 +57
18:52+58 21:00-06 21:00-07 23:07-14 22:11-06 22:24-15 2:40+57
Kappa Cyg N Iota Aq Alpha Cap S Delta A N Delta A S Iota Aq Perseids
(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 KCG NIA CAP SDA NDA SIA PER SPOR
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0500-0650 21h+45 1.68h 1.04 6.39 2 2 3 1 3 0 20 17
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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 2
CAP 1 2 3
SDA 1 1
NDA 0.5 2 0.5 3
SIA 0
PER 1 2 3.5 6.5 6 0.5 0.5 20
SPOR 1.5 0.5 4 3 5 3 17
Total: 1 1 4.5 4 12.5 12.5 8.5 3.5 0.5 48
"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" 0
"AUM" 0
SPOR 1.5 0.5 4 3 5 3 17
Total: 1.5 0.5 4 3 5 3 17
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SKY OBSCURED:
%10 From: 0515UT To: 0520UT Time: 5 min
%20 From: 0520UT To: 0530UT Time: 10 min
%10 From: 0530UT To: 0535UT Time: 5 min
%5 From: 0535UT To: 0545UT Time: 10 min
k = 0.035
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DEAD TIME: 00h08m
BREAKS : 00h01m
(0553-0554)
TOTAL : 00h09m
MEAN MAGNITUDES
SPOR = +3.09
PER = +1.90
NDA = +3.00 (sample of 3 meteors)
SDA = +3.00 (sample of 1 meteor)
NIA = +3.00 (sample of 2 meteors)
SIA = N/A (sample of 0 meteors)
CAP = +1.33 (sample of 3 meteors)
KCG = +2.00 (sample of 2 meteors)
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LIMITING MAGNITUDE:
STAR STAR
TIME AREA COUNT LM (mins in effect)
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0500 7 20 6.4 15
0530 14 20 6.4 30
0600 14 20 6.4 30
0630 6 14 6.4 25
0630 7 20 6.4 25
0650 6 13 6.3 10
0650 7 18 6.3 10
MEAN LIMITING MAGNITUDE: 6.39
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METEOR DATA
# TIME(UT) MAG SPEED COLOR SHOWER TRAIN (sec) DCV CONST (*)
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1 0510 -2 4 Blu PER + 60 Ari (*)
2 0515 2.5 2 KCG 10 Her
3 0518 3 4 PER 20 UMi
4 0522 0.5 4.5 Whi-Blu SPOR 20 Ser
5 0530 4 3 SPOR 10 Lyr->Her
6 0535 3 3.5 PER 10 Dra
7 0535 4 3.5 SPOR 10 Lyr
8 0535 3 3 SPOR 20 Aql
9 0543 1.5 4 Blu-Grn PER 0.5 0 Cyg
10 0544 5 3 SPOR 10 Cep
11 0546 4 2 CAP 10 Aql
12 0558 2.5 3.5 NDA + 10 Cyg
13 0559 2 4 PER 2 30 Cyg-Aql (*)
14 0601 -1 3 Yel KCG 50 Her-Ser
15 0601 0 2 Pal Grn CAP 1 / Oph
16 0603 2 4 PER + 40 Cap
17 0607 5 2 SPOR 10 Cyg
18 0609 5.5 4 PER 0 Cyg
19 0613 1 4 PER + 40 Cas
20 0617 2 3.5 PER 20 Peg
21 0619 0.5 4 Yel-Grn PER 30 UMi-Dra
22 0620 2 4 SPOR 20 CrB
23 0620 2.5 3.5 SPOR 20 Her-Oph
24 0623 0.5 4 Yel PER + 20 Cyg
25 0624 2 3 SPOR 30 Peg
26 0624 2.5 2.5 SPOR 20 Cyg-Lac
27 0624 4 2 CAP 10 Aql-Cyg
28 0627 2 3 SPOR / CrB
29 0628 1 4 Grn-Yel PER 3 Pale Grn 20 Her (*)
30 0629 2 4 PER 1 10 Cyg
31 0629 4 1 SPOR 10 Cyg
32 0631 3 3 NDA 40 Aqr
33 0633 5 2 SPOR 0 Cyg
34 0633 4 4 SPOR 0 Cyg
35 0634 0 4 Yel-Grn PER 1 Pale Grn 30 Aql (*)
36 0635 2.5 4 PER 20 Aqr
37 0637 3.5 3 NDA 10 Cyg
38 0639 4 3 SPOR 10 Cyg
39 0642 3 4 PER 10 Cyg
40 0642 2 2 NIA 30 Aqr
41 0643 3 3 SDA 20 Cas-Lac (*)
42 0645 3 4 PER 20 Dra
43 0645 3 4 PER 20 UMi
44 0646 2.5 4 PER 20 Cep
45 0648 3 3 SPOR 20 Cas
46 0648 2 4 PER 30 Peg
47 0648 4 2.5 NIA 0 Peg
48 0650 0 3.5 Org SPOR 1 20 Aqr
## 0600 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): PLOTTING ACCURACY (ACCU):
0 = Stationary 1 = Begin and end points well seen
1 = Very Slow 2 = Less certain of meteor path
2 = Slow 3 = Very uncertain plot: general direction
3 = Medium
4 = Fast
5 = Very Fast
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REMARKS: Seeing throughout session was Medium (5 of 10).
Dead time of 10 seconds was deducted per recorded meteor.
Meteor #1 was noted as being "electric blue" in color!
Meteor #13 was noted as being 30 degrees long.
Meteor #29 was noted as having a pronounced "kink" pointing SW in
the center of its train. This kink may have resulted from high-
altitude winds immediately AFTER the formation of the train.
Meteor #35 was noted as beginning at magnitude 1, brightening in
the middle third to 0, then fading rapidly to 2 thereafter.
Meteor #41 was noted as being 30 degrees long.
<END OF REPORT>