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(meteorobs) NAMN VISUAL SUMMARY REPORT, Nov 18/19 1997, GRALE (Lew Gramer)


NAMN VISUAL SUMMARY REPORT

DATE: Nov 18/19 1997   BEGIN: 0703UT  END: 0835UT
OBSERVER : GRALE (Lewis J. Gramer)
LOCATION : Long: 71o 06' 24" W;  Lat: 42o 25' 06" N;  Elev: 5 m
City & State: Medford, MA, USA
RECORDING METHOD: Tape Recorder
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OBSERVED SHOWERS: Use 3 letter Code; position; name
 LEO          NTA          STA          AMO          XOR
 152 +21      066 +23      063 +16      116 -06      069 +22
 Leonids      N Taurids    S Taurids    Alpha Mon    Chi Orionids

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OBSERVING PERIODS:  (0 = none seen;    / = shower not watched)
PERIOD(UT)    FIELD   Teff   F     LM    LEO NTA STA XOR AMO Spor Total
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0703-0835     04h+40  1.50h  1.11  5.76  8   4   1   1   0   6    20
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MAGNITUDE DISTRIBUTIONS:

SHOWER -7 -6 -5 -4 -3 -2 -1  0   +1  +2   +3   +4   +5   TOTAL
LEO                      1   1       1.5  3    1.5       8
NTA                1             .5  .5   .5   1.5       4
STA                                       1              1
AMO                                                      0
XOR                                       1              1
SPOR                                 1.5  3    1.5       6
Total:             1     1   1   .5  3.5  8.5  4.5       20

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SKY OBSCURED:
%10   FROM: 0703UT  TO: 0835UT	(Sky obstructed)
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DEAD TIME: 00h02m
BREAKS   : 00h00m
TOTAL    : 00h02m

MEAN MAGNITUDES:
Spor  = +3.00  (sample of  6 meteors)
LEO   = +2.13  (sample of  8 meteors)
NTA   = +1.50  (sample of  4 meteors)
STA   = +3.00  (sample of  1 meteor)
XOR   = +3.00  (sample of  1 meteor)
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LIMITING MAGNITUDE:
       STAR  STAR
TIME   AREA  COUNT LM     (mins in effect)
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0703      2  8     5.4    15
0703      8  9     5.5    15
0733      2  10    5.6    30
0733     17  11    5.9    30
0803      2  11    5.7    30
0803     17  13    6.0    30
0835     17  13    6.0    17

MEAN LIMITING MAGNITUDE: 5.76
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METEOR DATA
#   TIME(UT)  MAG    SPEED  COLOR   SHOWER  TRAIN       DCV/CONST  (*)
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1   0705      3      2              XOR                 10 Per
2   0714      3      2              STA                 20 Ari
3   0717      2      1.5            Spor                10 Per
4   0725      3.5    2              NTA                  0 Per-Aur
5   0726      3.5    4              Spor                20 Per-Cas
6   0729      2      4              LEO                 10 Aur->Per
7   0734      4      4              LEO                  0 Aur
8   0739      0      4      yel-org LEO     +           20 Aur
9   0742      3      3.5            Spor                10 Per      *
10  0743      3.5    4              LEO                 10 N Per
11  0752      2.5    4              LEO                 30 Ari
12  0754      1.5    2      pal org NTA                 20 Tau      *
13  075533   -1      4      org-yel LEO     6.0 sec org 20 Gem->Aur
14  0800      4      2.5            Spor                 0 Aur
15  080100   -3      2      grn-blu NTA     + pal blu    0 Aur      *
16  0803      4      3              NTA                  0 Per-Tau
17  0815      2.5    3.5            Spor                20 Per-And  *
18  0821      3      3.5            Spor                10 Aur      *
19  0823      3      4              LEO                 20 Tau-Gem
20  0834      3      4              LEO                 10 Gem
##  0835   ENDED SESSION ##

(*) - Meteors marked by asterisks have additional data under Remarks
[A "+" under the TRAIN column indicates a wake.]
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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 Very Good (8 of 10).
Observing initially through clearing high clouds/haze.

Dead time of 5 seconds was deducted per recorded meteor.

Meteors #9, 17, and #18 were all coincidentally noted as sharing
  a common speed, and aligning with appropriate path lengths to
  an apparent radiant 20o due N of Alpha Per near RA/Dec 03:30+70.
Meteor #12 was noted as being extremely short (less than 5o).
Meteor #15 was noted as actually having a turquiose color, with
  a distinctly colored pale-blue train lasting less than 0.5 sec.

Temperature at start of session 29oF
Temperature at end of session 25oF

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<END OF REPORT>
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