IAA Minor Planet Database| Epoch (TDB) | 2025-11-21 (JD 2461000.5) |
|---|---|
| Eccentricity (e) | 0.3248812195 ± 2.00e+00 |
| Semi-major axis (a) | 1.2485978808 AU ± 3.00e+00 |
| Inclination (i) | 15.31792369° ± 4.00e+00 |
| Long. of Asc. Node (Ω) | 8.87018800° ± 5.00e+00 |
| Arg. of Perihelion (ω) | 233.73577246° ± 6.00e+00 |
| Mean Anomaly (M) | 7.07531822° ± 6.68e-05 |
| Mean Motion (n) | 0.7064450492°/day ± 2.55e+00 |
| Perihelion dist (q) | 0.84295188 AU ± 3.22e+00 |
| Aphelion dist (Q) | 1.65424388 AU ± 4.69e+00 |
| Orbital Period | 1.39519172 yr ± 5.03e+00 |
| NGA Model | r2 |
| A2 | -1.38437815e-06 AU/d² |
| H (abs. magnitude) | 17.14 |
|---|---|
| G (slope) | 0.15 |
1985 SD, 1985 TO2
| Source | IAA |
|---|---|
| Solution Date | 2026-04-26 |
| RMS Residual | 0.481″ |
| Uncertainty | 0 |
| Orbit Type | Apollo |
| MOID | 0.045618 AU |
| Observations Used | 2393 |
| Gaia Obs Used | 147 |
| Oppositions | 18 |
| Arc Total | 1953-2017 |
| First Observation Used | 1953-10-12 |
| Last Observation Used | 2025-01-18 |
| Date | Type | RA | Dec | Mag | Band | Observatory |
|---|---|---|---|---|---|---|
| 2017-10-09 20:46:42 | S | 20 36 29.633 | -29 01 25.28 | – | L | C51 |
| 2017-10-09 20:46:53 | S | 20 36 29.657 | -29 01 25.46 | – | L | C51 |
| 2017-10-10 03:03:53 | S | 20 37 21.36 | -28 49 48.0 | – | L | C51 |
| 2017-10-10 04:38:08 | S | 20 37 34.24 | -28 46 54.3 | – | L | C51 |
| 2017-10-10 06:12:23 | S | 20 37 47.11 | -28 43 59.9 | – | L | C51 |
| 2017-10-10 06:12:34 | S | 20 37 47.09 | -28 44 00.4 | – | L | C51 |
| 2017-10-10 07:46:50 | S | 20 37 59.89 | -28 41 07.4 | – | L | C51 |
| 2017-10-10 09:21:04 | S | 20 38 12.72 | -28 38 13.5 | – | L | C51 |
| 2017-10-10 10:55:19 | S | 20 38 25.47 | -28 35 21.2 | – | L | C51 |
| 2017-10-10 12:29:34 | S | 20 38 38.16 | -28 32 28.6 | – | L | C51 |
| 2017-10-10 14:03:49 | S | 20 38 50.98 | -28 29 35.5 | – | L | C51 |
| 2017-10-10 15:38:04 | S | 20 39 03.65 | -28 26 42.8 | – | L | C51 |
| 2017-10-10 17:12:30 | S | 20 39 16.39 | -28 23 50.8 | – | L | C51 |
| 2017-10-10 18:46:45 | S | 20 39 29.059 | -28 20 58.60 | – | L | C51 |
| 2017-10-10 20:21:00 | S | 20 39 41.698 | -28 18 07.34 | – | L | C51 |
| 2017-10-10 21:55:15 | S | 20 39 54.322 | -28 15 16.09 | – | L | C51 |
| 2017-10-11 01:03:45 | S | 20 40 19.58 | -28 09 33.5 | – | L | C51 |
| 2017-10-11 04:12:26 | S | 20 40 44.65 | -28 03 52.2 | – | L | C51 |
| 2017-10-11 07:20:56 | S | 20 41 09.689 | -27 58 12.07 | – | L | C51 |
| 2017-10-11 10:29:27 | S | 20 41 34.59 | -27 52 32.9 | – | L | C51 |
| 2017-10-11 13:38:08 | S | 20 41 59.47 | -27 46 53.6 | – | L | C51 |
| 2017-10-11 19:55:08 | S | 20 42 48.960 | -27 35 37.43 | – | L | C51 |
| 2017-10-11 23:03:49 | S | 20 43 13.562 | -27 30 03.64 | – | L | C51 |
| 2017-10-12 02:12:19 | S | 20 43 38.08 | -27 24 27.1 | – | L | C51 |
| 2017-10-12 05:20:49 | S | 20 44 02.58 | -27 18 52.8 | – | L | C51 |
| 2017-10-12 08:29:19 | S | 20 44 26.90 | -27 13 19.1 | – | L | C51 |
| 2017-10-12 08:29:30 | S | 20 44 26.91 | -27 13 19.4 | – | L | C51 |
| 2017-10-12 11:38:44 | S | 20 44 51.34 | -27 07 46.5 | – | L | C51 |
| 2017-10-12 14:47:14 | S | 20 45 15.58 | -27 02 14.0 | – | L | C51 |
| 2017-10-12 17:55:01 | S | 20 45 39.59 | -26 56 44.1 | – | L | C51 |
| 2017-10-12 17:55:11 | S | 20 45 39.63 | -26 56 43.9 | – | L | C51 |
| 2017-10-14 02:05:00 | C | 20 49 42.87 | -26 01 18.2 | – | U | 703 |
| 2017-10-14 02:13:30 | C | 20 49 43.89 | -26 01 04.6 | – | U | 703 |
| 2017-10-14 02:21:59 | C | 20 49 44.93 | -26 00 49.4 | – | U | 703 |
| 2017-10-14 02:30:27 | C | 20 49 45.95 | -26 00 35.5 | – | U | 703 |
| 2017-10-21 06:56:47 | C | 21 09 39.08 | -21 26 20.0 | – | – | T08 |
| 2017-10-21 07:08:04 | C | 21 09 40.26 | -21 26 03.0 | – | – | T08 |
| 2017-10-21 07:10:02 | C | 21 09 40.57 | -21 26 00.6 | – | – | T08 |
| 2017-10-21 07:19:20 | C | 21 09 41.46 | -21 25 46.6 | – | – | T08 |
| 2017-10-21 07:21:19 | C | 21 09 41.64 | -21 25 42.9 | – | – | T08 |
| 2017-10-21 07:30:34 | C | 21 09 42.64 | -21 25 29.1 | – | – | T08 |
| 2017-10-21 07:32:33 | C | 21 09 42.82 | -21 25 27.1 | – | – | T08 |
| 2017-10-21 07:43:54 | C | 21 09 44.03 | -21 25 09.8 | – | – | T08 |
| 2017-10-23 01:53:32 | C | 21 14 13.90 | -20 23 53.2 | – | U | 703 |
| 2017-10-23 02:09:05 | C | 21 14 15.54 | -20 23 29.9 | – | U | 703 |
| 2017-10-23 02:16:51 | C | 21 14 16.35 | -20 23 20.1 | – | U | 703 |
| 2017-10-26 01:46:46 | C | 21 21 37.50 | -18 43 52.9 | – | U | 703 |
| 2017-10-26 01:55:09 | C | 21 21 38.36 | -18 43 42.7 | – | U | 703 |
| 2017-10-26 02:03:31 | C | 21 21 39.12 | -18 43 32.0 | – | U | 703 |
| 2017-10-26 02:11:54 | C | 21 21 39.88 | -18 43 20.1 | – | U | 703 |
| Epoch (UTC) | Value | Sigma | Units | Freq (MHz) | Receiver | Transmitter |
|---|---|---|---|---|---|---|
| 1999-03-22 19:00:00 | 256120.928 | 2 | Hz | 8560 | -14 | -14 |
| 1999-03-22 19:10:00 | 255413.3 | 0.8 | Hz | 8560 | -14 | -14 |
| 1999-03-22 20:20:00 | 60196743 | 15 | us | 8560 | -14 | -14 |
| 1999-03-23 17:20:00 | 200657.153 | 2 | Hz | 8560 | -14 | -14 |
| 1999-03-23 18:00:00 | 58222201 | 13 | us | 8560 | -14 | -14 |
| 1999-03-23 19:40:00 | 189775.86 | 0.6 | Hz | 8560 | -14 | -14 |
| 1999-03-24 19:20:00 | 56606774 | 10 | us | 8560 | -14 | -14 |
| 1999-03-24 19:50:00 | 56581684 | 6 | us | 8560 | -14 | -14 |
| 1999-03-24 20:40:00 | 56541351.5 | 3 | us | 8560 | -14 | -14 |
| 1999-03-24 22:40:00 | 98798.44 | 0.6 | Hz | 8560 | -14 | -14 |
| 1999-03-25 18:20:00 | 55871151.77 | 0.35 | us | 8560 | -14 | -14 |
| 1999-03-25 18:30:00 | 49750.55 | 0.6 | Hz | 8560 | -14 | -14 |
| 1999-03-25 20:00:00 | 55839294.5 | 3 | us | 8560 | -14 | -14 |
| 1999-03-26 03:00:00 | 55794584.04 | 3 | us | 8560 | -14 | -14 |
| 1999-03-26 19:00:00 | 55883749.15 | 3 | us | 8560 | -14 | -14 |
| 1999-03-26 23:10:00 | 55968454.29 | 0.35 | us | 8560 | -14 | -14 |
| 1999-03-26 23:10:00 | -64518.617 | 2.5 | Hz | 8560 | -14 | -14 |