Sunday, March 26, 2006
Date/Time: 3/26/06 Time 21:17:54 local time
My location : 1.4341 N, 103.7957
This flasher left trail in marked 1,2,3,4,5. For 2,3,5 a series of 2-3 quick flashes.
See this link for individual flash timing.
Saturday, March 25, 2006
Reprocesed Digi8 Dv tape recording through UFOCaptureV2. Saw Mstar3 CentRk or 99023B on screen with a couple of bright flashes ( marked as 1 ,2 3) in first image. As I re-positioned the lens I missed small portion of the trail. See 2nd image ( Use lambda Vel as reference point to relate the two images). For ID I ran in SkyMap using bulk tle from space-track but yielded nothing then I switched to Mike's Classfd.tle and ID it . As usual please CLICK the image(s) to see larger version(s).
Friday, March 24, 2006
Caught non-operative Iridium 920 flashing pass the 'V' shaped asterism in Puppis. Playback of the video revealed a d-d-b cycles (d=dimmer flash, b= bright flash). Enlarged view of the tracks revealed a more complicated within flash patterns ( see insert image - the subtle change in flash resulted in a DNA-like nodule bandings). The insert '>' marked the brightest flash location. CLICK image to have a closer look youself.
Friday, March 17, 2006
Thursday, March 16, 2006
Saturday, March 11, 2006
3:52 AM March 11 Saturday : As if the meteors wanted to have a say ( after my March 10 posting of a bright iridium flare see image in another post below), x1 bright meteor appeared in Lupus. The peak-hold image resembled a ' fountain-pen' . Video and a composite from just a few frame.
Thursday, March 09, 2006
Grand daddy of all flares - A -7 magnitude flare from Iridium # 52 just before 8pm. A helicopter created a wavy horizonal streak at top of frame. Click the image for a closer look. Follow this link to watch the video ( 2Mb)
Wednesday, March 08, 2006
I was watching the PC screen when suddenly the flared happened. I quickly hit the record key. The flare looked very much like iridium flare. Using Skymap object was IDed - Transat or 77-106A. Follow this link to watch the video.
Sunday, March 05, 2006
I have the object matching molniya 3-43 (92-085A) but the period does not match the 4.4 sec reported. Instead I saw 2.3596 ( 58.99/25). CLICK
** Mar 12 *Update "Bj" wrote: I plotted your flash measurements, and found them to be very accurate. The spread is +-0.04 s, of which at least +-0.03 s is due to timing resolution and/or image frequency/exposure time. Using 4.702 s period, it is obvious that the first and last flash is part of a main sequence, of which only flash #4 is missing. The secondary maxima lack the last five flashes. (Graph 92-85A.gif sent to yK ) See chart below Plotting 2.351 s period you can see that the secondary maxima are about .04 s after the mid-period, getting slightly closer by the end. (92-85A2.gif ) The 4.4 s you refer to (old observation?) is very reasonable, assuming it also used the full period, or the secondaries couldn't be seen.
My (attempt of) PPAS report was made with the help of PPASinp.exe v.2, slightly edited: " 92- 85 A 06-03-04 15:24:36.67YK 89.4 0.04 19 4.702 F'FF'sm "
Saturday, March 04, 2006
06:00 - Powered up Pc and printed star chart
06:10 - Set up the "co-axis - twin- lenses tripod" setup after moving a blocking potted plant.
06:15 - Star-hopped (25mm lens) Venus/Cap Alpha1/Beta to general area of comet.
06:20 - Switched over to 100mm lens/Mintron, comet popped out as a soft circular spot, very close to a mag 8.5+ star
06:32 - Stop recording