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 |
|---|---|---|---|---|---|---|
| 2024-12-24 12:44:39 | C | 23 35 19.28 | +06 20 45.3 | – | V | D29 |
| 2024-12-25 01:34:59 | C | 23 36 16.888 | +06 28 49.48 | – | V | G96 |
| 2024-12-25 01:43:15 | C | 23 36 17.478 | +06 28 54.80 | – | V | G96 |
| 2024-12-25 01:51:29 | C | 23 36 18.119 | +06 28 59.70 | – | V | G96 |
| 2024-12-25 01:59:45 | C | 23 36 18.713 | +06 29 04.88 | – | V | G96 |
| 2024-12-26 10:48:51 | C | 23 38 45.94 | +06 49 37.1 | – | V | D29 |
| 2024-12-26 11:09:10 | C | 23 38 47.37 | +06 49 50.0 | – | V | D29 |
| 2025-01-01 10:41:46 | C | 23 49 38.46 | +08 18 38.7 | – | V | D29 |
| 2025-01-01 10:43:03 | C | 23 49 38.56 | +08 18 38.9 | – | V | D29 |
| 2025-01-01 11:02:08 | C | 23 49 39.99 | +08 18 51.0 | – | V | D29 |
| 2025-01-01 11:03:24 | C | 23 49 40.08 | +08 18 51.5 | – | V | D29 |
| 2025-01-01 11:22:30 | C | 23 49 41.52 | +08 19 03.4 | – | V | D29 |
| 2025-01-01 11:23:46 | C | 23 49 41.61 | +08 19 03.7 | – | V | D29 |
| 2025-01-18 02:57:47 | C | 00 20 54.571 | +12 18 46.37 | – | V | V00 |
| 2025-01-18 03:05:53 | C | 00 20 55.216 | +12 18 51.30 | – | V | V00 |
| 2025-01-18 03:13:58 | C | 00 20 55.849 | +12 18 55.98 | – | V | V00 |
| 2025-01-18 03:22:02 | C | 00 20 56.497 | +12 19 00.88 | – | V | V00 |
| 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 |