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 |
|---|---|---|---|---|---|---|
| 2001-11-10 19:41:26 | C | 23 04 10.48 | +18 09 43.1 | – | – | 056 |
| 2001-11-11 01:46:39 | C | 23 03 44.22 | +18 07 06.8 | – | c | 699 |
| 2001-11-11 02:20:17 | C | 23 03 41.47 | +18 06 52.1 | – | c | 699 |
| 2001-11-11 02:54:01 | C | 23 03 38.69 | +18 06 37.1 | – | c | 699 |
| 2001-11-11 03:27:49 | C | 23 03 35.91 | +18 06 21.9 | – | c | 699 |
| 2001-11-11 18:04:26 | C | 23 02 31.41 | +17 59 40.1 | – | – | 056 |
| 2001-11-11 18:25:51 | C | 23 02 29.75 | +17 59 32.2 | – | – | 056 |
| 2001-11-11 18:33:10 | C | 23 02 29.29 | +17 59 26.4 | – | c | 113 |
| 2001-11-11 18:34:52 | C | 23 02 29.14 | +17 59 25.8 | – | c | 113 |
| 2001-11-11 18:36:42 | C | 23 02 29.00 | +17 59 25.0 | – | c | 113 |
| 2001-11-11 18:38:23 | C | 23 02 28.87 | +17 59 24.1 | – | c | 113 |
| 2001-11-11 18:40:05 | C | 23 02 28.75 | +17 59 23.4 | – | c | 113 |
| 2001-11-12 03:27:14 | C | 23 01 50.02 | +17 55 33.4 | 16.4 | c | 704 |
| 2001-11-12 03:48:18 | C | 23 01 48.34 | +17 55 23.7 | 16.2 | c | 704 |
| 2001-11-12 04:11:18 | C | 23 01 46.51 | +17 55 13.2 | 16.3 | c | 704 |
| 2001-11-12 04:32:24 | C | 23 01 44.66 | +17 55 07.0 | 19.3 | c | 704 |
| 2001-11-12 04:53:12 | C | 23 01 43.17 | +17 54 53.4 | 16.7 | c | 704 |
| 2001-11-13 19:16:08 | C | 22 59 01.68 | +17 37 18.0 | – | d | 631 |
| 2001-11-14 17:57:15 | C | 22 57 30.01 | +17 26 57.4 | – | c | 127 |
| 2001-11-14 18:04:28 | C | 22 57 29.50 | +17 26 54.1 | – | c | 127 |
| 2001-11-14 19:04:54 | C | 22 57 24.99 | +17 26 24.8 | – | d | 631 |
| 2001-11-14 20:15:23 | C | 22 57 19.92 | +17 25 52.4 | – | d | 631 |
| 2001-11-16 17:39:01 | C | 22 54 25.56 | +17 05 08.8 | – | – | 610 |
| 2001-11-16 17:43:01 | C | 22 54 25.28 | +17 05 07.0 | – | – | 610 |
| 2001-11-16 17:47:00 | C | 22 54 25.01 | +17 05 05.2 | – | – | 610 |
| 2001-11-16 17:51:00 | C | 22 54 24.73 | +17 05 03.4 | – | – | 610 |
| 2001-11-16 17:55:01 | C | 22 54 24.45 | +17 05 01.6 | – | – | 610 |
| 2001-11-17 03:18:06 | C | 22 53 48.77 | +17 00 49.4 | 16.8 | c | 704 |
| 2001-11-17 03:38:51 | C | 22 53 47.34 | +17 00 39.6 | 16.9 | c | 704 |
| 2001-11-17 04:06:18 | C | 22 53 45.47 | +17 00 26.6 | 16.6 | c | 704 |
| 2001-11-17 04:27:02 | C | 22 53 44.05 | +17 00 16.7 | 16.4 | c | 704 |
| 2001-11-17 18:39:44 | C | 22 52 53.40 | +16 53 40.5 | – | c | 185 |
| 2001-11-17 18:44:00 | C | 22 52 53.12 | +16 53 38.6 | – | c | 185 |
| 2001-11-17 18:49:14 | C | 22 52 52.76 | +16 53 36.2 | – | c | 185 |
| 2001-11-17 18:54:14 | C | 22 52 52.43 | +16 53 34.0 | – | c | 185 |
| 2001-11-17 19:02:40 | C | 22 52 51.87 | +16 53 30.2 | – | c | 185 |
| 2001-11-19 18:34:20 | C | 22 50 07.05 | +16 31 51.1 | 15.9 | – | 939 |
| 2001-11-19 18:45:23 | C | 22 50 06.33 | +16 31 46.4 | 16.0 | – | 939 |
| 2001-11-19 18:56:30 | C | 22 50 05.61 | +16 31 41.7 | 15.9 | – | 939 |
| 2001-11-20 01:54:21 | C | 22 49 42.782 | +16 28 34.21 | – | W | 644 |
| 2001-11-20 02:24:33 | C | 22 49 40.858 | +16 28 20.60 | – | W | 644 |
| 2001-11-20 02:56:11 | C | 22 49 38.839 | +16 28 06.17 | – | W | 644 |
| 2001-11-21 17:29:35 | C | 22 47 35.20 | +16 10 31.1 | – | a | 233 |
| 2001-11-21 17:33:46 | C | 22 47 34.92 | +16 10 29.3 | – | a | 233 |
| 2001-11-21 17:37:45 | C | 22 47 34.65 | +16 10 27.5 | – | a | 233 |
| 2001-11-21 17:41:45 | C | 22 47 34.48 | +16 10 25.6 | – | a | 233 |
| 2001-11-21 17:45:44 | C | 22 47 34.21 | +16 10 24.3 | – | a | 233 |
| 2001-11-21 17:49:44 | C | 22 47 33.98 | +16 10 22.1 | – | a | 233 |
| 2001-11-24 17:06:10 | C | 22 44 02.89 | +15 38 13.2 | – | – | 610 |
| 2001-11-24 17:10:09 | C | 22 44 02.67 | +15 38 11.4 | – | – | 610 |
| 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 |