06 March 2007

6 March 2007

Observing LocationVP
Observational Period1030-1045 EST
Atmospheric Conditions
Cloud CoverClear
Temperature13°F
Wind15 MPH
and gusting
HumidityLow
Feels Like-3°F Wind Chill

There was nothing to be seen and it was very cold so I didn’t actually sit there for 15 minutes observing and writing up my notes.

TransparencyExcellent
SeeingII
Instruments Brunton 8x21 compact binocular w/Welco gold shade 14 welder's filter - Charlie
Observing PartyCharlie Ridgway

Target Sunspots
ConstellationAqr
CategorySolar
Time
yyyymmdd.hhmm
20070306.1030 EST
Comments
Distance
Light Time
0.992 AU
8m15s
Angular Size32'15"
Altitude38.50°
Heliographic Latitude
(B0)
-7.25°
Heliographic Longitude
(L0)
327.42°
Position Angle
(P)
-22.76°
Carrington rotation number
(CR)
2054

There were no spots visible today.

 Groups SpotsR
North0 0 0
South0 0 0
Total0 0 0
R = (Groups * 10) + Spots)



There are going to be two bright Iridium flares right next to each other tonight just before 1900 EDT. I am hoping it will be clear enough that I can see them and not so windy and cold that I can't stand out there to do it. I am hoping to make a movie of them on my digital camera.



Observing LocationTimes Square, Broadway & Seventh Ave @ 46 St, New York, NY
Observational Period1846-1900 EST
Atmospheric Conditions
Cloud CoverClear
Temperature16°F
Wind15 MPH>br>and gusting
HumidityModerate
Feels Likevery cold and blustery
+1°F Wind Chill

I arrived earlier than I needed to and went into a store to browse and keep warm until close to the time of the event. The wind seemed to be coming through multiple layers of clothing and was out of the N where I needed to be looking.

TransparencyGood
Seeing
InstrumentsNaked-eye observing - Charlie
Observing PartyCharlie Ridgway

TargetIridium 36 & 97 Flares
ConstellationDra
CategorySatellite
Time
yyyymmdd.hhmm
20070306.1859 EST
CommentsThese were two very bright Iridium flares that were to take place right next to each other at the same time.

I had thought I would observe from Bryant Park but when I arrived there I couldn’t see any stars and wasn’t sure where Polaris should be, and the buildings in the direction I felt I needed to be looking were obscuring that part of the sky so I moved on in search of a better location.

I thought being on Broadway which points to Manhattan NW might be better so headed over to Times Square to look for a place that might be open. The sky was fairly open up at 46 St and I decided to stay there even though it is like standing in the noonday sun with nearly every inch of every building covered in neon signs and video screens.

I saw one of the satellites but not the other. They were to have been close enough that I am assuming I saw 36 which was the brighter of the two but it may have actually been 97. The satellite flared high and close to the edge of a building.

When I sent back in Heavens Above to copy the specifics on the two events they only list 36:

SatelliteTimeAltAz.Mag.
Iridium 3618:59:4244°11°-8
But CalSky, which was my original data source, is still showing both birds:
SatelliteTimeAltAz.Mag.
Iridium 3618:59:4244.2°11.0°-6.9
Iridium 9718:59:4643.9°11.6°-5.1
Cal sky has a night saying that because this is a spare satellite its “status is unknown” and its brightness estimate might be unreliable.

Whichever satellite I saw, it was extremely bright, rivaling the bright lights of Times Square.

Disclaimer
This is my personal record of my astronomical observations. It was written for my personal reference. The only reason it is in a blog is that a blog is a very convenient way to get the records formatted more or less uniformly and they will, hopefully, have greater longevity at Google where the servers are backed up than on my hard drive which never gets backed up. I occasionally include copyrighted material in my posts. I do this to make it convenient for me to access things I think I might want to refer to again. I think of this like making a photocopy of something I read that I put in a file where I can find it when I want it. As I understand copyright law, as explained in the DVD series Copyright Compliance by Chip Taylor Communications, this use is allowed under the Fair Use doctrine since I am not making any money on this blog, I don’t publicize the blog, and only occasionally post small excerpts of copyrighted works.


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