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 |
|---|---|---|---|---|---|---|
| 2011-10-15 22:46:41 | C | 23 49 24.54 | +18 59 42.2 | – | u | C01 |
| 2011-10-15 22:47:34 | C | 23 49 24.46 | +18 59 41.9 | – | u | C01 |
| 2011-10-15 22:48:27 | C | 23 49 24.37 | +18 59 41.9 | – | u | C01 |
| 2011-10-15 22:49:21 | C | 23 49 24.28 | +18 59 41.6 | – | u | C01 |
| 2011-10-15 22:50:14 | C | 23 49 24.19 | +18 59 41.6 | – | u | C01 |
| 2011-10-16 19:22:29 | C | 23 47 28.03 | +18 55 38.2 | – | c | 127 |
| 2011-10-16 19:32:45 | C | 23 47 27.02 | +18 55 36.0 | – | c | 127 |
| 2011-10-16 19:38:40 | C | 23 47 26.45 | +18 55 34.8 | – | c | 127 |
| 2011-10-17 21:36:27 | C | 23 44 57.29 | +18 50 01.5 | – | o | 108 |
| 2011-10-17 21:38:50 | C | 23 44 57.07 | +18 50 01.1 | – | o | 108 |
| 2011-10-17 21:47:45 | C | 23 44 56.17 | +18 49 58.9 | – | o | 108 |
| 2011-10-18 04:23:18 | C | 23 44 18.88 | +18 48 32.2 | – | r | 703 |
| 2011-10-18 04:32:43 | C | 23 44 17.91 | +18 48 30.0 | – | r | 703 |
| 2011-10-18 04:42:10 | C | 23 44 16.94 | +18 48 27.9 | – | r | 703 |
| 2011-10-18 04:51:35 | C | 23 44 16.00 | +18 48 25.9 | – | r | 703 |
| 2011-10-21 19:29:33 | C | 23 36 00.08 | +18 25 26.6 | – | c | 127 |
| 2011-10-21 19:36:33 | C | 23 35 59.37 | +18 25 24.4 | – | c | 127 |
| 2011-10-21 19:43:13 | C | 23 35 58.72 | +18 25 22.7 | – | c | 127 |
| 2011-10-21 19:49:39 | C | 23 35 58.08 | +18 25 20.9 | – | c | 127 |
| 2011-10-21 19:55:58 | C | 23 35 57.45 | +18 25 19.0 | – | c | 127 |
| 2011-10-22 19:26:41 | C | 23 33 43.89 | +18 18 10.7 | – | u | 240 |
| 2011-10-22 19:29:52 | C | 23 33 43.57 | +18 18 09.7 | – | u | 240 |
| 2011-10-22 19:33:03 | C | 23 33 43.26 | +18 18 08.8 | – | u | 240 |
| 2011-10-22 19:36:46 | C | 23 33 42.89 | +18 18 07.6 | – | u | 240 |
| 2011-10-23 09:20:39 | C | 23 32 25.77 | +18 13 50.7 | – | u | 379 |
| 2011-10-23 09:23:19 | C | 23 32 25.49 | +18 13 49.9 | – | u | 379 |
| 2011-10-23 09:43:12 | C | 23 32 23.57 | +18 13 44.2 | – | u | 379 |
| 2011-10-23 10:36:06 | C | 23 32 18.30 | +18 13 27.6 | – | u | 379 |
| 2011-10-23 10:39:36 | C | 23 32 17.97 | +18 13 26.8 | – | u | 379 |
| 2011-10-23 19:21:56 | C | 23 31 28.77 | +18 10 32.0 | – | c | 127 |
| 2011-10-23 19:41:07 | C | 23 31 26.88 | +18 10 25.7 | – | c | 127 |
| 2011-10-23 19:47:36 | C | 23 31 26.22 | +18 10 23.6 | – | c | 127 |
| 2011-10-24 05:37:40 | C | 23 30 30.38 | +18 07 14.9 | – | r | 703 |
| 2011-10-24 05:52:24 | C | 23 30 28.90 | +18 07 09.8 | – | r | 703 |
| 2011-10-24 06:07:19 | C | 23 30 27.43 | +18 07 04.9 | – | r | 703 |
| 2011-10-24 06:22:22 | C | 23 30 25.95 | +18 06 59.7 | – | r | 703 |
| 2011-10-25 18:23:47 | C | 23 27 06.89 | +17 54 26.1 | – | o | J16 |
| 2011-10-25 18:34:18 | C | 23 27 05.88 | +17 54 22.6 | – | o | J16 |
| 2011-10-25 18:52:52 | C | 23 27 04.12 | +17 54 16.0 | – | o | J16 |
| 2011-10-27 12:27:23 | C | 23 23 16.56 | +17 39 09.9 | – | u | 379 |
| 2011-10-27 12:30:03 | C | 23 23 16.33 | +17 39 08.4 | – | u | 379 |
| 2011-10-27 12:38:45 | C | 23 23 15.49 | +17 39 05.4 | – | u | 379 |
| 2011-10-28 21:02:02 | C | 23 20 23.25 | +17 26 30.7 | – | u | J93 |
| 2011-10-28 21:05:35 | C | 23 20 22.95 | +17 26 29.7 | – | u | J93 |
| 2011-10-28 21:09:07 | C | 23 20 22.62 | +17 26 28.6 | – | u | J93 |
| 2011-10-30 02:58:18 | C | 23 17 47.34 | +17 14 43.2 | – | t | H47 |
| 2011-10-30 03:06:21 | C | 23 17 46.60 | +17 14 40.0 | – | t | H47 |
| 2011-10-30 03:13:45 | C | 23 17 45.91 | +17 14 37.0 | – | t | H47 |
| 2011-10-31 12:22:03 | C | 23 14 57.78 | +17 01 00.6 | – | u | 379 |
| 2011-10-31 12:24:44 | C | 23 14 57.55 | +17 00 59.7 | – | u | 379 |
| 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 |