(meteorobs) Oct. 21st Visual Observations from Southern California

Robert Lunsford lunro.imo.usa at cox.net
Mon Oct 27 19:01:27 EDT 2008


My second night of viewing the Orionids had strong Santa Ana winds from the
east. The temperature was an amazing 73F (23C) during the entire session.
The skies were fantastic at the start of the session but deteriorated as the
moon gained altitude. My perception took a dive during the last hour so I
only gave that period a Teff of .5

The highlight of the night was the only Leo Minorid seen. It was an
orange -2 that shot overhead and into the southwestern sky. Very impressive!

Orionid rates were down overall, but the third hour still produced 20. No
Epsilon Geminids were noticed tonight.

Video data from this session will be posted ASAP.
---------------------------------------------------

Observer: Robert Lunsford (LUNRO)
Date: 08-Oct-22 Mean Solar Long: 209.209
Beginning Time (UT) 0700
Ending Time (UT) 1100
Total TeFF: 3.50   Moon Rise: 07:30
41% Illuminated Moon

LOCATION: Alpine Viewpoint, CA, USA
LONG: 116 39' 40" W LAT: 32 50' 13" N
Elevation: 630 m
Beginning Temperature/Relative Humidity: 73F (23C) - 35%
Ending Temperature/Relative Humidity: 73F (23C) - 32%
METHOD: Visual Recording on Tape/Video Recording
--------------------------
Showers Observed
LMI 10:40 (160) +39    00-00-00-01      1   Total
NTA 02:40 (040) +18   02-00-00-00      2   Total
ORI 06:24 (096) +16    07-12-20-04     43  Total
STA 02:48 (042) +12    01-01-01-01      4   Total
SPO                              02-02-03-05     12  Total

Hourly Counts               12-15-24-11     62  Total

---------------------------
Period 1   0700-0800 UT
F = 1.00 (0% Clouds) Mean LM 6.81
FOV 020 -10  TOTAL TeFF: 1.00
Mean Solar Long: 209.139

Meteor Data:
LMI  0,  NTA 2,  ORI  7,  STA 1,   SPO  2,  TOTAL 12

Magnitude Distribution
NTA 0 (1) +3 (1) Mean +2.00
ORI  +1 (2)  +2 (2)  +3 (1)  +4 (1) +5 (1)  Mean +2.57
STA +4 (1)  Mean +4.00
SPO -2 (1) +4 (1)  Mean + 1.00

----------------------------
Period 2   0800-0900UT
F = 1.00 (0% Clouds)  Mean LM 6.72
FOV 035 -10  TOTAL TeFF: 1.00
Mean Solar Long: 209.180

Meteor Data:
LMI  0,  NTA 0,  ORI  12,  STA 1,   SPO  2,  TOTAL 15

Magnitude Distribution
ORI  0 (2)  +1 (2)  +2 (3)  +3 (2)  +4 (2)  +5 (1)  Mean +2.25
STA +2 (1)  Mean +2.00
SPO +3 (1)  +4 (1)   Mean +3.50

----------------------------
Period 3   0900-1000 UT
F = 1.00 (0% Clouds) Mean LM 6.51
FOV 050 -10  TOTAL TeFF: 1.00
Mean Solar Long: 209.222

Meteor Data:
LMI  0,  NTA 0,  ORI  20,  STA 1,   SPO  3,  TOTAL 24

Magnitude Distribution
ORI  -1 (1)  0 (2)  +1 (2)  +2 (7)  +3 (3)  +4 (2)  +5 (3)
                                                            Mean +2.35
STA +2 (1)  Mean +2.00
SPO +3 (1) +4 (1) +5 (1)  Mean +4.00

----------------------------
Period 4   1000-1100 UT
F = 1.00 (0% Clouds) Mean LM 6.28
FOV 065 -10  TOTAL TeFF: 0.50
Mean Solar Long: 209.263

Meteor Data:
LMI  1,  NTA 0,  ORI  4,  STA 1,   SPO  5,  TOTAL 11

Magnitude Distribution
LMI -2 (1)  Mean -2.00
ORI +2 (1)  +3 (2)  +5 (2)  Mean +4.50
SPO 0 (2)  +3 (1) +4 (1)  +5 (1)   Mean +2.40

----------------------------
Total Magnitude Distribution

LMI -2 (1)  Mean -2.00
NTA 0 (1)  +3 (1)  Mean +1.50
ORI  -1 (1)  0 (4)  +1 (6)  +2 (12)  +3 (8)  +4 (5)  +5 (6)
                                                             Mean  +2.40
STA +2 (1)  +3 (1)  +4 (1)  Mean +2.25
SPO -2 (1)  0 (2)  +3 (3) +4 (4) +5 (2)  Mean +2.75

Bob Lunsford




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