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(meteorobs) Observation June 13/14 2001
On June 13/14, I observed from Casselman for two and a half hours.
The sky was a bit hazy from daytime heat and smog, and that reduced
the limiting magnitude. I recorded 23 meteors with several of them
plotted. Decent minor activity coming from June Lyrids, Xi Draconids
and Sagittarids. No meteors were brighter than magnitude +2. The
final half hour had a lack of sporadics.
The highlight was at 5:40UT when a slow moving blue Sagittarid flared
three times on a long 18 degrees path!
At 3:50UT, I recorded a bright flash in Ophiuchus on the corner of my
eye but I'm unable to tell what it was.
Leaving the Casselman quarry at the end was a bit challenging. The
cows were restless all night and then they decided to all go to the
front entrance gate and wait there. When I was ready to leave, I was
greeted by about 8 cows who refused to move. Finally I managed to
lure them away (I think they smelled my cookies), and I could leave
without any of them escaping.
Pierre Martin
Ottawa, Ontario
DATE: June 13/14 2001
BEGIN: 3:35 UT (23:35 EDT) END: 6:10 UT (2:10 EDT)
OBSERVER: Pierre Martin (MARPI)
LOCATION: Long: -75.063 West; Lat: 45.269 North Elevation:100m
City & Province: Casselman, Ontario, CANADA
RECORDING METHOD: talking clock/tape recorder
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OBSERVED SHOWERS: 3-letter code; radiant position
SAG (Sagittarids) 18h30 -22
JLY (June Lyrids) 18h30 +35
XDR (Xi Draconids) 18h30 +55
TOP (Theta Ophiuchids) 16h50 -17
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OBSERVING PERIODS: 0 = none seen; / = shower not observed
PERIOD(UT) FIELD Teff F LM SPO JLY XDR SAG TOP
3:35-4:37 16h30 +21 1.01 1.00 6.19 5 1 0 1 0
4:37-5:40 18h01 +21 1.00 " 6.23 6 3 1 1 0
5:40-6:10 18h54 +22 0.47 " 6.16 0 0 2 2 1
--------------------------------------------------------------
TOTALS: 2.48 11 4 3 4 1 = 23
--------------------------------------------------------------
The first column (Period UT) refers to observing periods broken down
as close as possible to one hour of true observing, in Universal
Time. The second column (Field) is the area in in the sky where I
centered my field of view. The third column (TEFF) represents
effective observing time (corrected for breaks or any time I did not
spent looking at the sky). One hour = 1.00 teff. The fourth column
(F) is for sky obstructions (clouds, buildings, ect). No obstructions
= 1.00 but any obstructions will make this number slightly higher.
The 5th column (LM) is the average naked eye limitimg magnitude,
determined by triangle star counts. All following columns indicate
the number of meteors for each shower observed.
MAGNITUDE DISTRIBUTIONS:
SHOWER +2 +3 +4 +5 AVERAGE
SPO 2 6 2 1 +3.18
JLY 1 1 2 0 +3.25
SAG 0 4