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 |
|---|---|---|---|---|---|---|
| 1981-10-23 18:47:09 | A | 00 41 55.76 | +31 30 08.8 | 16.5 | – | 095 |
| 1991-09-12 11:39:00 | – | 01 09 01.76 | +20 26 18.2 | 18.8 | – | 675 |
| 1991-09-12 12:12:55 | – | 01 09 01.23 | +20 26 31.8 | 18.0 | – | 675 |
| 1991-09-16 11:19:59 | – | 01 07 34.07 | +21 10 29.3 | 18.2 | – | 675 |
| 1991-09-16 12:08:45 | – | 01 07 32.97 | +21 10 51.5 | – | – | 675 |
| 1991-10-03 08:40:14 | A | 00 51 43.57 | +23 59 31.4 | 17.8 | – | 675 |
| 1991-10-03 09:22:14 | A | 00 51 40.92 | +23 59 45.5 | – | – | 675 |
| 1991-10-07 08:10:00 | A | 00 45 25.42 | +24 31 11.8 | – | – | 675 |
| 1991-10-07 08:53:00 | A | 00 45 22.14 | +24 31 24.8 | – | – | 675 |
| 1991-10-10 07:57:00 | A | 00 40 01.67 | +24 51 51.6 | 16.0 | – | 675 |
| 1991-10-10 08:28:59 | A | 00 39 59.04 | +24 51 59.6 | – | – | 675 |
| 1991-10-12 08:17:45 | A | 00 36 05.19 | +25 03 55.0 | – | – | 675 |
| 1991-10-12 08:52:29 | A | 00 36 02.11 | +25 04 03.7 | – | – | 675 |
| 1991-11-01 03:55:15 | A | 23 47 46.22 | +25 26 14.4 | 15.5 | – | 675 |
| 1991-11-01 04:35:30 | A | 23 47 41.37 | +25 26 08.8 | – | – | 675 |
| 1991-11-02 04:34:30 | A | 23 45 00.26 | +25 22 08.0 | – | – | 675 |
| 1991-11-04 05:14:15 | A | 23 39 33.23 | +25 12 33.5 | – | – | 675 |
| 1991-11-09 02:59:29 | A | 23 26 33.22 | +24 42 07.3 | – | – | 675 |
| 1991-11-09 03:48:15 | A | 23 26 27.44 | +24 41 53.5 | – | – | 675 |
| 1991-11-12 04:06:15 | A | 23 18 39.57 | +24 18 50.9 | – | – | 675 |
| 1991-11-26 18:36:59 | A | 22 42 58.55 | +21 53 26.7 | – | m | 587 |
| 1991-11-29 20:39:00 | A | 22 35 19.93 | +21 15 20.4 | – | m | 587 |
| 1991-11-29 21:09:30 | A | 22 35 16.43 | +21 15 02.2 | – | m | 587 |
| 1991-11-30 19:23:00 | A | 22 32 55.97 | +21 02 58.2 | – | m | 587 |
| 1991-12-04 22:24:49 | C | 22 21 51.48 | +20 03 35.4 | – | – | 801 |
| 1991-12-04 22:41:53 | C | 22 21 49.25 | +20 03 24.5 | – | – | 801 |
| 1991-12-07 02:29:30 | A | 22 15 25.61 | +19 27 50.7 | 15.5 | – | 675 |
| 1991-12-07 03:04:59 | A | 22 15 20.43 | +19 27 22.8 | – | – | 675 |
| 1991-12-09 09:29:07 | C | 22 08 01.21 | +18 45 04.5 | – | z | 411 |
| 1991-12-09 09:34:04 | C | 22 08 00.38 | +18 44 59.9 | – | z | 411 |
| 1991-12-09 09:37:29 | C | 22 07 59.88 | +18 44 57.5 | – | z | 411 |
| 1991-12-09 09:42:19 | C | 22 07 59.17 | +18 44 53.3 | – | z | 411 |
| 1991-12-09 09:46:56 | C | 22 07 58.40 | +18 44 49.6 | – | z | 411 |
| 1991-12-09 09:53:08 | C | 22 07 57.47 | +18 44 43.5 | – | z | 411 |
| 1991-12-11 10:07:57 | C | 22 00 45.29 | +18 01 47.0 | – | z | 411 |
| 1991-12-11 10:12:46 | C | 22 00 44.39 | +18 01 42.9 | – | z | 411 |
| 1991-12-12 10:22:50 | C | 21 56 50.03 | +17 37 50.1 | – | z | 411 |
| 1991-12-12 10:27:41 | C | 21 56 49.13 | +17 37 44.8 | – | z | 411 |
| 1991-12-12 10:30:56 | C | 21 56 48.58 | +17 37 43.2 | – | z | 411 |
| 1991-12-15 03:49:17 | c | 21 45 00.58 | +16 23 11.0 | – | i | 691 |
| 1991-12-15 03:59:43 | c | 21 44 58.46 | +16 22 56.9 | – | i | 691 |
| 1991-12-15 04:10:50 | c | 21 44 56.19 | +16 22 41.9 | – | i | 691 |
| 1992-03-04 14:02:34 | A | 14 16 32.54 | -35 11 37.1 | 17.3 | – | 474 |
| 1992-03-04 14:21:03 | A | 14 16 30.78 | -35 11 34.7 | – | – | 474 |
| 1992-03-08 15:17:54 | A | 14 07 48.56 | -34 49 52.3 | 16.7 | – | 474 |
| 1992-03-08 15:36:35 | A | 14 07 46.53 | -34 49 46.8 | – | – | 474 |
| 1992-04-04 14:23:22 | A | 13 09 07.00 | -28 04 57.0 | 17.1 | – | 474 |
| 1992-04-04 14:37:18 | A | 13 09 05.90 | -28 04 45.5 | – | – | 474 |
| 1992-04-09 12:56:39 | – | 13 01 09.34 | -26 24 11.2 | – | – | 413 |
| 1992-04-09 14:01:39 | – | 13 01 05.03 | -26 23 17.5 | – | – | 413 |
| 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 |