LB Obs 2018 Aug 11 am

From: Leo Barhorst via Seesat-l <seesat-l_at_satobs.org>
Date: Sat, 11 Aug 2018 05:47:09 +0200
On Jul 25th the Watec 120N camera broke down.
I ordered a Watec 910 HX/RC from the shop.
But the shop was closed last week for summer holliday.
Yesterday I recieved the new Watec.
Yesterday afternoon I installed the new camera and made all the connections.
I got a bit familiar with the new camera and the On Screen Display of the menu.
Last evening the sky was clouded, but around midnight UT the sky was
almost clear.
I set the camera and pointed it to Capella to adjust the focus of the lens.
Nice clear image with a lot of stars.
The 910 has a lower lightlevel and more faint stars were visible.

A short run was made and several satellites were imaged.

Due to the more sensitive CCD in the camera the images got saturized
around 02:30 UT.
Still have to figure out how to reduce the gain correctly.

28057 03 049A   4172 G 20180811012907501 F, P ~ 5 sec.

A few satellites have higher residuals, see below.

28057 03 049A   4172 G 20180811012907501 17 25 0405918+283992 37 F
28057 03 049A   4172 G 20180811012917501 17 25 0354374+264379 37 F
28057 03 049A   4172 G 20180811012927504 17 25 0343180+243910 37 F
27387 02 009B   4172 G 20180811012917501 17 25 0355646+261951 37 F
27387 02 009B   4172 G 20180811012927504 17 25 0344867+242233 37 S
36606 10 030B   4172 G 20180811014153568 17 25 0359417+294061 37 S
36606 10 030B   4172 G 20180811014203576 17 25 0350418+275264 37 S
19650 88 102B   4172 G 20180811014443573 17 25 0408346+284219 37 S
19650 88 102B   4172 G 20180811014453569 17 25 0404727+261197 37 S
28095 03 054A   4172 G 20180811022037093 17 25 0456932+605516 37 S
28095 03 054A   4172 G 20180811022047094 17 25 0516487+595614 37 S
28095 03 054A   4172 G 20180811022053112 17 25 0527235+591729 37 S
28538 05 004B   4172 G 20180811022317090 17 25 0238055+704146 37 F
28538 05 004B   4172 G 20180811022327096 17 25 0317094+705047 37 S
39462 13 072A   4172 G 20180811022601074 17 25 0309174+503455 37 S
39462 13 072A   4172 G 20180811022607086 17 25 0257023+504611 37 S
39462 13 072A   4172 G 20180811022613107 17 25 0244471+505269 37 S

Obs format: http://www.satobs.org/position/IODformat.html
Residuals wrt the latest classfd.tle file before the session start.
Norad Cospar         Cross-track      delta T      TLE age  range
28095 03 054A   |  0.08046 deg    1.353 sec   9.7 day, 1303.4 km
28538 05 004B   |  0.12338 deg    2.358 sec   8.7 day, 1171.5 km

The residuals of the other classified satellites are low.
2018 total obs: 12672 + 14 + 17 = 12713
Previous total + 14 with "forgotten" obs found during archiving July 2018 obs.
***************************************************************************************
Setup: WATEC 910HX/RC, 50 mm F1:1.8, NTP, Celestron Nexstar
Observations made and reduced with Sattools
Cospar 4172 ALMERE 52.3713 N 5.2580 E –3 ASL

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Received on Fri Aug 10 2018 - 22:48:21 UTC

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