IAA Minor Planet Database| Epoch (TDB) | 2025-11-21 (JD 2461000.5) |
|---|---|
| Eccentricity (e) | 0.5061419644 ± 2.00e+00 |
| Semi-major axis (a) | 1.8416500846 AU ± 3.00e+00 |
| Inclination (i) | 5.40998079° ± 4.00e+00 |
| Long. of Asc. Node (Ω) | 294.72384111° ± 5.00e+00 |
| Arg. of Perihelion (ω) | 173.50914524° ± 6.00e+00 |
| Mean Anomaly (M) | 195.60461677° ± 8.67e-06 |
| Mean Motion (n) | 0.3943679385°/day ± 9.64e-01 |
| Perihelion dist (q) | 0.90951369 AU ± 3.97e+00 |
| Aphelion dist (Q) | 2.77378648 AU ± 5.83e+00 |
| Orbital Period | 2.49925561 yr ± 6.11e+00 |
| NGA Model | r2 |
| A2 | 3.86027242e-06 AU/d² |
| H (abs. magnitude) | 16.96 |
|---|---|
| G (slope) | 0.15 |
1981 UX12, 1991 TS1
| Source | IAA |
|---|---|
| Solution Date | 2026-04-26 |
| RMS Residual | 0.284″ |
| Uncertainty | 0 |
| Orbit Type | Apollo |
| MOID | 0.047842 AU |
| Observations Used | 2241 |
| Radar Obs Used | 9 |
| Gaia Obs Used | 55 |
| Oppositions | 22 |
| Arc Total | 1981-2017 |
| First Observation Used | 1991-09-12 |
| Last Observation Used | 2023-07-22 |
| Date | Type | RA | Dec | Mag | Band | Observatory |
|---|---|---|---|---|---|---|
| 2011-10-31 12:27:24 | C | 23 14 57.30 | +17 00 58.3 | – | u | 379 |
| 2011-10-31 12:35:45 | C | 23 14 56.56 | +17 00 54.7 | – | u | 379 |
| 2011-10-31 12:45:04 | C | 23 14 55.73 | +17 00 51.1 | – | u | 379 |
| 2011-11-07 14:30:25 | C | 23 02 03.65 | +15 46 51.6 | – | r | 168 |
| 2011-11-07 14:34:40 | C | 23 02 03.35 | +15 46 49.4 | – | r | 168 |
| 2011-11-07 15:46:16 | C | 23 01 58.17 | +15 46 17.8 | – | r | 168 |
| 2011-11-07 15:48:45 | C | 23 01 58.00 | +15 46 16.5 | – | r | 168 |
| 2011-11-07 17:55:10 | C | 23 01 48.89 | +15 45 19.6 | – | r | 168 |
| 2011-11-15 18:02:26 | C | 22 50 41.25 | +14 20 01.7 | – | u | 160 |
| 2011-11-15 18:06:26 | C | 22 50 41.03 | +14 20 00.0 | – | u | 160 |
| 2011-11-15 18:10:26 | C | 22 50 40.80 | +14 19 58.2 | – | u | 160 |
| 2011-11-15 21:46:45 | C | 22 50 29.39 | +14 18 25.0 | – | c | J19 |
| 2011-11-15 21:56:15 | C | 22 50 28.85 | +14 18 20.5 | – | c | J19 |
| 2011-11-15 22:05:46 | C | 22 50 28.38 | +14 18 16.1 | – | c | J19 |
| 2011-11-15 22:15:16 | C | 22 50 27.86 | +14 18 12.0 | – | c | J19 |
| 2011-11-15 22:24:46 | C | 22 50 27.36 | +14 18 07.6 | – | c | J19 |
| 2011-11-15 22:34:16 | C | 22 50 26.87 | +14 18 03.3 | – | c | J19 |
| 2011-11-15 22:43:47 | C | 22 50 26.38 | +14 17 59.0 | – | c | J19 |
| 2011-11-15 22:53:17 | C | 22 50 25.89 | +14 17 54.8 | – | c | J19 |
| 2011-11-16 18:37:02 | C | 22 49 31.78 | +14 09 21.4 | – | u | 160 |
| 2011-11-16 18:41:04 | C | 22 49 31.57 | +14 09 19.4 | – | u | 160 |
| 2011-11-16 18:45:02 | C | 22 49 31.36 | +14 09 17.7 | – | u | 160 |
| 2011-11-17 17:57:03 | C | 22 48 29.66 | +13 59 18.5 | – | u | 160 |
| 2011-11-17 18:00:50 | C | 22 48 29.44 | +13 59 16.8 | – | u | 160 |
| 2011-11-17 18:04:59 | C | 22 48 29.22 | +13 59 14.6 | – | u | 160 |
| 2011-11-19 18:00:28 | C | 22 46 31.44 | +13 38 54.8 | – | u | 160 |
| 2011-11-19 18:04:24 | C | 22 46 31.27 | +13 38 53.2 | – | u | 160 |
| 2011-11-19 18:08:22 | C | 22 46 31.09 | +13 38 51.5 | – | u | 160 |
| 2011-11-22 03:02:38 | C | 22 44 28.28 | +13 15 21.3 | 16.7 | c | 704 |
| 2011-11-22 03:21:00 | C | 22 44 27.54 | +13 15 13.5 | 16.7 | c | 704 |
| 2011-11-22 04:16:26 | C | 22 44 25.33 | +13 14 50.2 | 16.9 | c | 704 |
| 2011-11-23 01:14:51 | C | 22 43 46.29 | +13 06 21.4 | 16.4 | c | 704 |
| 2011-11-23 01:33:16 | C | 22 43 45.57 | +13 06 14.0 | 17.0 | c | 704 |
| 2011-11-23 01:52:07 | C | 22 43 44.84 | +13 06 06.3 | 16.9 | c | 704 |
| 2011-11-23 02:10:32 | C | 22 43 44.14 | +13 05 58.9 | 16.6 | c | 704 |
| 2011-11-23 02:28:58 | C | 22 43 43.44 | +13 05 51.1 | 16.5 | c | 704 |
| 2011-11-25 19:31:31 | C | 22 41 54.09 | +12 39 58.6 | – | d | B66 |
| 2011-11-25 21:04:38 | C | 22 41 51.30 | +12 39 21.1 | – | d | B66 |
| 2011-12-15 08:54:42 | C | 22 36 27.92 | +09 40 22.7 | – | u | 379 |
| 2011-12-15 08:57:22 | C | 22 36 27.93 | +09 40 21.7 | – | u | 379 |
| 2011-12-15 09:09:32 | C | 22 36 27.73 | +09 40 16.1 | – | u | 379 |
| 2011-12-17 17:45:16 | C | 22 36 03.76 | +09 13 27.7 | – | d | B66 |
| 2011-12-17 18:49:07 | C | 22 36 02.77 | +09 12 55.4 | – | d | B66 |
| 2011-12-22 01:48:39 | C | 22 34 56.94 | +08 15 31.6 | 16.5 | c | 704 |
| 2011-12-22 02:46:25 | C | 22 34 55.63 | +08 14 54.9 | 17.3 | c | 704 |
| 2011-12-22 03:05:41 | C | 22 34 55.21 | +08 14 42.0 | 16.8 | c | 704 |
| 2011-12-27 18:28:07 | C | 22 32 02.27 | +06 31 02.8 | – | u | 160 |
| 2011-12-27 18:30:29 | C | 22 32 02.17 | +06 31 00.4 | – | u | 160 |
| 2011-12-27 18:32:45 | C | 22 32 02.10 | +06 30 58.2 | – | u | 160 |
| 2011-12-28 18:41:56 | C | 22 31 14.71 | +06 07 41.1 | – | u | 160 |
| Epoch (UTC) | Value | Sigma | Units | Freq (MHz) | Receiver | Transmitter |
|---|---|---|---|---|---|---|
| 1997-01-10 18:20:00 | 3731 | 5 | Hz | 8510 | -14 | -14 |
| 1997-01-10.763889 | 373100 | 500 | Hz | 8510 | 253 | 253 |
| 1997-01-11 19:10:00 | 75008124 | 5 | us | 8510 | -14 | -14 |
| 1997-01-11.798611 | 7500812400 | 5000 | us | 8510 | 253 | 253 |
| 2007-01-03 20:11:00 | 116048715 | 3 | us | 2380 | -1 | -1 |
| 2007-01-03.840972 | 11604871500 | 3000 | us | 2380 | 251 | 251 |
| 2007-01-05 19:44:00 | 107738375 | 3 | us | 2380 | -1 | -1 |
| 2007-01-05.822222 | 10773837500 | 3000 | us | 2380 | 251 | 251 |
| 2012-01-04 19:48:00 | 130959255.88 | 4 | us | 2380 | -1 | -1 |
| 2012-01-04.825000 | 13095925588 | 4000 | us | 2380 | 251 | 251 |
| 2012-01-05 20:03:00 | 126342351.27 | 1.5 | us | 2380 | -1 | -1 |
| 2012-01-05 20:03:00 | 125051.5857 | 2 | Hz | 2380 | -1 | -1 |
| 2012-01-05.835417 | 12634235127 | 1500 | us | 2380 | 251 | 251 |
| 2012-01-06 19:57:00 | 121823721.51 | 1.5 | us | 2380 | -1 | -1 |
| 2012-01-06 19:57:00 | 124021.9515 | 1 | Hz | 2380 | -1 | -1 |
| 2012-01-06.831250 | 12182372151 | 1500 | us | 2380 | 251 | 251 |
| 2012-01-16 00:00:00 | 84103212.02 | 6 | us | 8560 | -14 | -14 |
| 2012-01-16.000000 | 8410321202 | 6000 | us | 8560 | 253 | 253 |
| 2012-01-20 22:10:00 | 70243830.8 | 4 | us | 8560 | -14 | -14 |
| 2012-01-20.923611 | 7024383080 | 4000 | us | 8560 | 253 | 253 |
| 2017-01-04 20:19:00 | 128728700.47 | 4 | us | 2380 | -1 | -1 |
| 2017-01-16 22:00:00 | 79320383.6 | 2 | us | 8560 | -14 | -14 |