CLASSIFICATION OF GEOSYNCHRONOUS OBJECTS -- ISSUE 10

EUROPEAN SPACE AGENCY
EUROPEAN SPACE OPERATIONS CENTRE
GROUND SYSTEMS ENGINEERING DEPARTMENT
Space Debris Office

CLASSIFICATION OF GEOSYNCHRONOUS OBJECTS
ISSUE 10
by R. Choc and R. Jehn
Produced with the DISCOS Database

February 2008
ESOC Robert-Bosch-Str. 5, 64293 Darmstadt, Germany

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5. Table 3: objects of indeterminate status

This table contains all the objects the status of which cannot be determined by our software. The main reason for the difficulty to classify an object is that there are not enough TLEs available or that the status has recently changed (satellite newly launched or recently manoeuvred). Indeed, at least 5 TLEs with the same status are needed to determine the category in which the object falls. Some bad measurements can also cause the failure to classify an object correctly. The objects are ordered according to their COSPAR designation. The following information is available:

The longitude histories of most objects in this category are plotted in Figures

Ind.nn COSPAR NAME Date N_ly N_tot MJD a e i Ω ω λ

Ind. 4 07056A Star One C1 27-DEC-07 7 71 21179.316690 42171.59979 0.0002483 0.0290 161.8520 228.4605 294.9215

Ind. 5 07056B Skynet 5B 27-DEC-07 7 7 21179.760914 42030.78725 0.0013333 0.0610 8.7880 348.6305 18.9439

Ind. 6 07057A Sirius 4 28-DEC-07 6 6 21180.932130 42125.45373 0.0010185 0.0034 261.4142 266.2136 4.4297

Ind. 7 07058A Cosmos-2434 (Raduga-1M1) 27-DEC-07 3 3 21179.704201 42228.20679 0.0004643 0.0802 166.9994 208.9547 70.3171

Ind. 8 07058C Proton-M fourth stage (Briz-M) 03-JAN-08 1 1 21186.526211 41037.69000 0.0253373 0.1260 88.4445 20.4816 70.8311

Ind. 9 07063B Horizons 2 27-DEC-07 1 1 21179.445197 24557.02738 0.7163108 5.4872 225.8285 182.0659 323.3833

Ind.nn	COSPAR	NAME	Date	N_ly	N_tot	MJD	a	e	i	Ω	ω	λ
Ind. 4	07056A	Star One C1	27-DEC-07	7	71	21179.316690	42171.59979	0.0002483	0.0290	161.8520	228.4605	294.9215
Ind. 5	07056B	Skynet 5B	27-DEC-07	7	7	21179.760914	42030.78725	0.0013333	0.0610	8.7880	348.6305	18.9439
Ind. 6	07057A	Sirius 4	28-DEC-07	6	6	21180.932130	42125.45373	0.0010185	0.0034	261.4142	266.2136	4.4297
Ind. 7	07058A	Cosmos-2434 (Raduga-1M1)	27-DEC-07	3	3	21179.704201	42228.20679	0.0004643	0.0802	166.9994	208.9547	70.3171
Ind. 8	07058C	Proton-M fourth stage (Briz-M)	03-JAN-08	1	1	21186.526211	41037.69000	0.0253373	0.1260	88.4445	20.4816	70.8311
Ind. 9	07063B	Horizons 2	27-DEC-07	1	1	21179.445197	24557.02738	0.7163108	5.4872	225.8285	182.0659	323.3833