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EUROPEAN SPACE AGENCY EUROPEAN SPACE OPERATIONS CENTRE GROUND SYSTEMS ENGINEERING DEPARTMENT Mission Analysis Office
CLASSIFICATION OF GEOSYNCHRONOUS OBJECTS
February 2006 3.6 Objects in a libration orbit around both stable pointsIn the case where the object is in a libration orbit around both stable points, the following data are given:
It is important to note that this category is special and only a very small number of objects is concerned. It is a borderline case, just between a libration around one stable point and a drift around the Earth. Thus, some perturbations which could be neglected in the other cases have a strong influence here. The main consequence is that this category is more sensitive to errors in the measurements than the others and the libration period may have a low accuracy.
The longitude history of these objects is plotted in Figures 1. |
| L3.nn | COSPAR | NAME | Date | Plib | Δλ | λmin | λmax | Nly | Ntot | MJD | a | e | i | Ω | ω | λ |
| IUS stage 2 | 2937 | 334.1 | 175.0 | 149.1 | 39 | 508 | 20449.907500 | 42172.83662 | 0.0033715 | 10.8970 | 50.4511 | 144.1625 | 347.4890 | |||
| L3 . 2 | 71095B | OPS 9432 (DSCS II F-2) | 30-DEC-05 | 2937 | 335.6 | 174.2 | 149.9 | 42 | 625 | 20452.170301 | 42152.50800 | 0.0003581 | 13.7645 | 345.1285 | 207.8689 | 185.1185 |
| L3 . 3 | 97083A | Intelsat 804 | 30-DEC-05 | 2941 | 333.1 | 175.6 | 148.6 | 43 | 398 | 20452.610972 | 42132.32221 | 0.0006266 | 0.8760 | 89.2366 | 181.9477 | 238.4693 |
| L3 . 4 | 91064A | Cosmos 2155 | 29-DEC-05 | 2946 | 332.3 | 175.9 | 148.2 | 37 | 692 | 20451.475671 | 42155.03499 | 0.0002664 | 9.2726 | 51.0373 | 160.1905 | 141.7406 |
| L3 . 5 | 90094A | Gorizont 21 | 28-DEC-05 | 3054 | 327.2 | 178.6 | 145.8 | 42 | 755 | 20450.959016 | 42150.83372 | 0.0006102 | 9.6416 | 47.6363 | 87.1582 | 324.9143 |
| L3 . 6 | 87091D | Proton-K fourth stage (Block DM) | 26-DEC-05 | 3175 | 348.7 | 167.6 | 156.3 | 39 | 661 | 20448.750914 | 42189.02672 | 0.0021765 | 11.1061 | 33.2667 | 62.7524 | 27.8261 |
| L3 . 7 | 97041A | Cosmos 2345 | 29-DEC-05 | 3201 | 324.9 | 179.7 | 144.7 | 43 | 402 | 20451.444468 | 42162.57619 | 0.0155802 | 5.7330 | 74.0209 | 91.6853 | 177.6016 |
| L3 . 8 | 94067D | Proton-K fourth stage (Block DM-2M) | 28-DEC-05 | 3533 | 323.1 | 180.7 | 143.8 | 37 | 469 | 20450.900012 | 42170.18470 | 0.0006553 | 8.3723 | 58.8500 | 285.0207 | 357.2390 |
| L3 . 9 | 85007A | Gorizont 11 | 29-DEC-05 | 3639 | 322.9 | 180.8 | 143.7 | 41 | 655 | 20451.764502 | 42176.88430 | 0.0000734 | 12.2687 | 23.0454 | 93.8921 | 9.5417 |
| L3 . 10 | 95045A | Cosmos 2319 | 28-DEC-05 | 3710 | 322.8 | 180.9 | 143.6 | 39 | 522 | 20450.964757 | 42162.16135 | 0.0006160 | 6.8419 | 68.4118 | 38.9368 | 343.4841 |
| L3 . 11 | 91079A | Cosmos 2172 | 27-DEC-05 | 3711 | 322.8 | 180.9 | 143.6 | 41 | 659 | 20449.907072 | 42166.46749 | 0.0005898 | 9.0932 | 52.3822 | 178.4663 | 349.3004 |
| L3 . 12 | 94030A | Gorizont 30 | 29-DEC-05 | 3788 | 322.7 | 180.9 | 143.6 | 40 | 595 | 20451.012813 | 42179.93094 | 0.0003270 | 7.7252 | 62.5073 | 93.0508 | 320.2644 |
| L3 . 13 | 87084A | Cosmos 1888 | 28-DEC-05 | 3807 | 322.6 | 180.9 | 143.6 | 42 | 776 | 20450.859977 | 42166.33319 | 0.0002238 | 11.0295 | 33.5327 | 81.9492 | 346.5569 |
| L3 . 14 | 67026A | Intelsat II F-3 | 05-DEC-05 | 3867 | 322.6 | 181.0 | 143.5 | 33 | 296 | 20427.654653 | 42178.63888 | 0.0029429 | 10.4935 | 323.5496 | 193.3555 | 13.2666 |
| Cosmos 1738 | 3869 | 322.6 | 181.0 | 143.5 | 40 | 700 | 20448.848565 | 42166.19077 | 0.0010797 | 12.2944 | 28.4331 | 278.0363 | 347.3996 |
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