Optical properties of GEO and HEO space objects population discovered and tracked by ISON. Vladimir Agapov , Victor Stepanyants , Igor Molotov Keldysh Institute of Applied Mathematics RAS Alexandr Lapshin Astronomical Scientific Center “Project- technics ”, JSC. 29 th ISTS Conference
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Vladimir Agapov, Victor Stepanyants, Igor Molotov
Keldysh Institute of Applied Mathematics RAS
Astronomical Scientific Center “Project-technics”, JSC
29th ISTS Conference
June2-9, 2013, Nagoya, Japan
- tracking of bright GEO and HEO objects
Global GEO survey subsystem: 8 of 22 cm, 4 of 25 cm and 1 of 50 cm telescopes with FOV of 3.5- 5.5 degree
Subsystem for faint debris tracking:AT-64 Nauchny-1, RC-800 Mayaki, S-600 Andrushivka, AZT-8 Gissar, AZT-14 Mondy, Zeiss-600 Arkhyz, ORI-40 in Kitab, ORI-40 in Khuraltogot
Subsystem for tracking of bright GEO and HEO objects: GAS-250 in Ussuriysk, BNC-250 in Uzhgorod, Sajen-TM in Arkhyz, ORI-25 in Blagoveschensk, ORI-25 in Tiraspol, ORI-25 in Kislovodsk, PH-1 n Nauchniy-1, AZT-28 in Priozersk, TAL-250 in Barnaul
HEO survey(Nauchniy-1 and Kislovodsk) and extended GEO survey (Khuraltogot, Sanglokh,Kislovodsk and Nauchniy-1) consist of telescopes with FOV of 7 degree
As of the mid of April 2013 stores:
ISON Database HEO, MEO and GEO objects currently on-orbit
The ISON database contains information for more than 3260 HEO, MEO and GEO objects currently on-orbit with orbits updating using ISON optical measurements
960 of these objects are newly discovered during 10 years of ISON work
270 HEO and GEO space debris objects are discovered in 2012 (compare to 168 ones discovered in 2011 and 61 – in 2010), 88 new ones are discovered already in 2013 (as of Jun 1st).
HEO, MEO and GEO Objects in ISON Database
Objects associated with Molniya-type orbit launches
Objects associated with GTO launches
Objects originated in GEO
by period and inclination
ISON Database HEO, MEO and GEO objects brightness
More than 14.8 millions of valid brightness measurements for more than 3400 objects are obtained
4400 brightness measurements per each object in average are collected during processing CCD images obtained during normal observations (survey and tasking)
More than 10000 brightness measurements per object are collected for a group of the most often observed 450 objects (up to 55000 brightness measurements per individual object)
of observing GEO objects
approx. 1 m
approx. 10 cm
approx. 1 m
approx. 10 cm
Brightness measurement information is collected for more than 4800 GEO, HEO and MEO objects in the ISON database, including 960 ones without orbital data at SpaceTrack
Analysis of GEO, HEO and MEO objects brightness distribution is performed. Comparison is made for standard brightness distribution for objects of different type and at different orbits.
Standard brightness distribution for HEO objects tracking by ISON seems is different to the one for GEO objects. But it is not possible to make a definitive conclusion at this moment. The study is continuing.
Variations of the standard brightness are studied.
Great thanks to all ISON observers and engineers
Special thanks to the AIUB team for support of continuing multiyear cooperative GEO and HEO debris research especially HAMR ones