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 |
|---|---|---|---|---|---|---|
| 1999-10-03 07:41:19 | C | 01 54 43.19 | +19 00 36.4 | 16.4 | a | 704 |
| 1999-10-03 07:57:25 | C | 01 54 41.07 | +19 00 42.7 | 16.5 | a | 704 |
| 1999-10-12 04:56:27 | C | 01 26 48.38 | +20 01 50.5 | 17.2 | a | 704 |
| 1999-10-12 05:17:00 | C | 01 26 45.62 | +20 01 54.4 | 17.9 | a | 704 |
| 1999-10-12 05:39:27 | C | 01 26 42.58 | +20 01 58.7 | 17.7 | a | 704 |
| 1999-10-12 05:59:32 | C | 01 26 39.92 | +20 02 02.1 | 17.9 | a | 704 |
| 1999-10-12 06:19:35 | C | 01 26 37.22 | +20 02 05.6 | 17.8 | a | 704 |
| 1999-10-13 20:42:29 | C | 01 21 39.51 | +20 08 06.9 | – | c | 118 |
| 1999-10-13 20:49:19 | C | 01 21 38.62 | +20 08 08.0 | – | c | 118 |
| 1999-10-18 05:54:09 | C | 01 08 32.30 | +20 17 58.5 | – | i | 670 |
| 1999-10-18 06:08:07 | C | 01 08 30.45 | +20 17 59.6 | – | i | 670 |
| 1999-10-18 06:25:43 | C | 01 08 28.41 | +20 17 59.3 | – | i | 670 |
| 1999-10-21 13:01:43 | C | 00 59 20.34 | +20 19 27.6 | – | z | 900 |
| 1999-10-21 13:14:54 | C | 00 59 18.83 | +20 19 27.4 | – | z | 900 |
| 1999-10-31 04:38:08 | c | 00 36 56.32 | +20 04 16.9 | – | d | 703 |
| 1999-10-31 04:55:27 | c | 00 36 54.81 | +20 04 15.4 | – | d | 703 |
| 1999-10-31 05:12:41 | c | 00 36 53.43 | +20 04 13.7 | – | d | 703 |
| 1999-10-31 05:30:00 | c | 00 36 51.91 | +20 04 11.1 | – | d | 703 |
| 1999-11-01 21:06:28 | C | 00 33 47.77 | +19 59 46.4 | – | c | 118 |
| 1999-11-01 21:16:03 | C | 00 33 47.03 | +19 59 45.2 | – | c | 118 |
| 1999-11-03 05:38:49 | C | 00 31 26.73 | +19 56 06.0 | 18.4 | a | 704 |
| 1999-11-03 06:02:19 | C | 00 31 25.02 | +19 56 03.5 | 18.7 | a | 704 |
| 1999-11-03 06:25:51 | C | 00 31 23.30 | +19 56 00.4 | 18.0 | a | 704 |
| 1999-11-03 06:49:23 | C | 00 31 21.57 | +19 55 57.1 | 17.9 | a | 704 |
| 1999-11-03 07:13:16 | C | 00 31 19.85 | +19 55 54.6 | 18.2 | a | 704 |
| 2002-11-25 02:18:47 | C | 05 06 01.41 | +54 07 31.0 | – | d | 785 |
| 2002-11-25 02:42:06 | C | 05 05 58.25 | +54 07 42.5 | – | d | 785 |
| 2002-11-25 02:56:24 | C | 05 05 56.30 | +54 07 49.5 | – | d | 785 |
| 2002-12-12 05:23:21 | C | 04 05 13.87 | +55 14 37.4 | 18.6 | c | 704 |
| 2002-12-12 05:45:37 | C | 04 05 10.34 | +55 14 33.0 | 18.9 | c | 704 |
| 2002-12-12 06:07:57 | C | 04 05 06.85 | +55 14 28.6 | 19.2 | c | 704 |
| 2002-12-12 06:52:44 | C | 04 05 00.31 | +55 14 18.8 | 19.3 | c | 704 |
| 2002-12-28 05:15:45 | C | 03 20 30.23 | +52 28 31.8 | 18.5 | c | 704 |
| 2002-12-28 05:37:14 | C | 03 20 28.57 | +52 28 17.9 | 19.3 | c | 704 |
| 2002-12-28 05:58:17 | C | 03 20 26.66 | +52 28 05.9 | 19.1 | c | 704 |
| 2002-12-28 06:19:54 | C | 03 20 24.90 | +52 27 51.7 | 19.3 | c | 704 |
| 2003-01-27 02:59:23 | C | 03 08 02.746 | +45 25 11.11 | – | e | 645 |
| 2003-01-27 03:04:23 | C | 03 08 02.899 | +45 25 08.69 | 20.14 | e | 645 |
| 2003-01-28 02:11:23 | C | 03 08 50.316 | +45 14 08.20 | – | e | 645 |
| 2003-01-28 02:16:23 | C | 03 08 50.471 | +45 14 05.86 | 20.61 | e | 645 |
| 2003-01-28 03:34:30 | C | 03 08 52.989 | +45 13 28.35 | – | e | 645 |
| 2003-01-28 03:39:30 | C | 03 08 53.148 | +45 13 26.05 | 20.04 | e | 645 |
| 2005-11-04 10:36:26 | C | 09 33 57.60 | +34 56 16.1 | – | r | 703 |
| 2005-11-04 10:44:17 | C | 09 33 58.42 | +34 56 15.9 | – | r | 703 |
| 2005-11-04 10:52:14 | C | 09 33 59.43 | +34 56 16.6 | – | r | 703 |
| 2005-11-04 11:00:03 | C | 09 34 00.12 | +34 56 16.2 | – | r | 703 |
| 2005-11-10 10:44:54 | C | 09 49 38.86 | +34 48 32.7 | 19.5 | c | 704 |
| 2005-11-10 11:03:01 | C | 09 49 40.74 | +34 48 32.7 | 19.2 | c | 704 |
| 2005-11-10 11:21:21 | C | 09 49 42.75 | +34 48 31.4 | 19.3 | c | 704 |
| 2005-12-07 10:34:32 | C | 10 59 41.82 | +34 18 43.2 | – | r | 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 |