| Epoch (TDB) | 2025-11-21 (JD 2461000.5) |
|---|---|
| Eccentricity (e) | 0.6504955739 ± 4.39e-09 |
| Semi-major axis (a) | 1.7762715081 AU ± 6.91e-10 |
| Inclination (i) | 39.82339034° ± 1.52e-06 |
| Long. of Asc. Node (Ω) | 356.79391976° ± 4.07e-07 |
| Arg. of Perihelion (ω) | 267.84423496° ± 9.83e-07 |
| Mean Anomaly (M) | 65.34753960° ± 7.65e-07 |
| Mean Motion (n) | 0.4163401091°/day ± 2.43e-10 |
| Perihelion dist (q) | 0.62081475 AU ± 7.80e-09 |
| Aphelion dist (Q) | 2.93172826 AU ± 7.88e-09 |
| Orbital Period | 2.36735847 yr ± 1.38e-09 |
| H (abs. magnitude) | 15.28 |
|---|---|
| G (slope) | 0.15 |
| Source | IAA |
|---|---|
| Solution Date | 2026-05-31 |
| RMS Residual | 0.228″ |
| Uncertainty | 0 |
| Orbit Type | Apollo |
| MOID | 0.003514 AU |
| Observations Used | 2243 |
| Radar Obs Used | 7 |
| Gaia Obs Used | 28 |
| Oppositions | 25 |
| Arc Total | 1973-2026 |
| First Observation Used | 1973-03-06 |
| Last Observation Used | 2026-01-02 |
| Date | Type | RA | Dec | Mag | Band | Observatory |
|---|---|---|---|---|---|---|
| 1973-03-06 06:47:30 | A | 11 24 27.61 | +55 42 04.1 | – | – | 675 |
| 1973-03-06 06:59:30 | A | 11 24 23.43 | +55 42 11.7 | – | – | 675 |
| 1973-03-10 09:35:00 | A | 10 41 56.9 | +56 11 30 | – | – | 675 |
| 1973-03-10 09:58:59 | A | 10 41 46.1 | +56 11 29 | – | – | 675 |
| 1973-03-10 10:16:59 | A | 10 41 36.70 | +56 11 09.0 | – | – | 675 |
| 1973-03-10 10:29:00 | A | 10 41 31.28 | +56 11 06.8 | – | – | 675 |
| 1973-03-20 19:07:01 | A | 08 25 59.05 | +49 19 57.7 | 15.0 | – | 026 |
| 1973-03-20 19:15:00 | A | 08 25 55.72 | +49 19 36.5 | – | – | 026 |
| 1973-03-22 20:31:57 | A | 08 00 14.48 | +46 07 33.0 | – | – | 026 |
| 1973-03-22 20:36:57 | A | 08 00 12.29 | +46 07 13.1 | – | – | 026 |
| 1973-03-24 22:16:59 | A | 07 36 20.63 | +42 19 11.5 | – | – | 026 |
| 1973-03-24 22:23:59 | A | 07 36 17.73 | +42 18 37.5 | – | – | 026 |
| 1973-04-04 03:40:59 | A | 06 09 40.57 | +19 18 39.5 | 16.0 | – | 675 |
| 1973-04-04 03:53:00 | A | 06 09 37.62 | +19 17 39.6 | – | – | 675 |
| 1973-04-04 20:06:59 | A | 06 05 23.33 | +17 45 49.5 | 17.5 | – | 026 |
| 1973-04-04 20:21:59 | A | 06 05 19.82 | +17 44 30.1 | – | – | 026 |
| 1973-04-04 21:29:00 | A | 06 05 01.66 | +17 38 05.7 | – | – | 026 |
| 1973-04-04 21:36:30 | A | 06 04 59.97 | +17 37 28.8 | – | – | 026 |
| 1973-04-04 21:44:00 | A | 06 04 58.29 | +17 36 52.9 | – | – | 026 |
| 1973-04-13 00:43:48 | A | 05 22 42.00 | +01 34 25.9 | – | A | 801 |
| 1973-04-13 00:58:04 | A | 05 22 39.39 | +01 33 26.4 | – | A | 801 |
| 1973-07-02 10:49:19 | A | 03 11.55 | +11 41.8 | – | – | 695 |
| 1973-09-21 10:01:24 | A | 03 03 05.96 | +56 35 57.2 | – | – | 695 |
| 1973-09-21 11:05:34 | A | 03 02 58.07 | +56 37 02.8 | – | – | 695 |
| 1973-10-22 07:42:19 | A | 00 56 13.62 | +61 13 50.8 | – | – | 695 |
| 1973-10-22 08:46:50 | A | 00 56 02.49 | +61 13 27.0 | – | – | 695 |
| 1975-12-01 23:01:21 | A | 20 52 11.92 | -13 47 00.7 | – | A | 801 |
| 1975-12-03 23:11:45 | A | 21 00 04.39 | -12 16 37.7 | – | A | 801 |
| 1975-12-04 01:59:59 | A | 21 00 31.14 | -12 11 22.0 | – | – | 695 |
| 1975-12-04 02:44:00 | A | 21 00 37.96 | -12 10 06.1 | – | – | 695 |
| 1975-12-31 02:14:00 | A | 22 21 16.16 | +03 43 52.7 | – | – | 695 |
| 1976-01-27 03:08:00 | A | 23 20 32.38 | +14 22 21.1 | – | – | 695 |
| 1987-02-02 10:23:21 | A | 10 19 57.58 | +69 59 02.4 | – | – | 688 |
| 1987-02-02 10:29:24 | A | 10 19 56.37 | +69 59 04.7 | – | – | 688 |
| 1987-02-02 10:37:45 | A | 10 19 54.72 | +69 59 07.7 | – | – | 688 |
| 1987-09-17 08:51:12 | A | 12 16 05.64 | -64 44 41.2 | 15.0 | – | 474 |
| 1987-09-17 09:06:04 | A | 12 16 39.33 | -64 47 15.7 | – | – | 474 |
| 1987-09-17 09:21:36 | A | 12 17 15.02 | -64 49 58.3 | – | – | 474 |
| 1987-09-18 08:30:35 | A | 13 26 58.82 | -68 36 37.2 | 15.0 | – | 474 |
| 1987-09-18 08:46:34 | A | 13 28 01.13 | -68 38 40.6 | – | – | 474 |
| 1987-09-18 09:09:35 | A | 13 29 31.88 | -68 41 31.6 | – | – | 474 |
| 1987-09-19 10:29:34 | A | 15 32 33.54 | -69 44 43.0 | 15.0 | – | 474 |
| 1987-09-19 10:39:05 | A | 15 33 25.08 | -69 43 54.9 | – | – | 474 |
| 1987-09-19 10:52:05 | A | 15 34 36.23 | -69 42 52.2 | – | – | 474 |
| 1987-09-27 03:55:48 | A | 20 46 11.07 | -05 57 45.8 | – | B | 691 |
| 1987-09-27 04:02:48 | A | 20 46 12.91 | -05 56 28.1 | – | B | 691 |
| 1992-02-07 13:09:31 | C | 14 15 06.68 | +21 52 37.4 | – | z | 658 |
| 1992-02-07 13:12:30 | C | 14 15 06.90 | +21 52 35.4 | – | z | 658 |
| 1992-02-07 13:15:00 | C | 14 15 07.11 | +21 52 33.5 | – | z | 658 |
| 1992-10-17 07:30:50 | – | 02 02 27.93 | +65 15 55.0 | – | – | 711 |
| Epoch (UTC) | Value | Sigma | Units | Freq (MHz) | Receiver | Transmitter |
|---|---|---|---|---|---|---|
| 1987-09-25 04:00:00 | -1130345 | 21 | Hz | 8495 | -14 | -14 |
| 1987-09-25.166667 | -113034500 | 1500 | Hz | 8495 | 253 | 253 |
| 2018-03-21 22:59:00 | 89358361.22 | 1.11 | us | 2380 | -1 | -1 |
| 2018-03-22 23:24:00 | 90863191.54 | 1.53 | us | 2380 | -1 | -1 |
| 2018-03-23 22:02:00 | 94516753.78 | 1.35 | us | 2380 | -1 | -1 |
| 2018-03-23 23:26:00 | 94811323.08 | 1.19 | us | 2380 | -1 | -1 |
| 2018-03-24 21:24:00 | 100309946.32 | 1.29 | us | 2380 | -1 | -1 |
| 2018-03-25 21:34:00 | 108108721.41 | 1.65 | us | 2380 | -1 | -1 |