IAA Minor Planet Database| Epoch (TDB) | 2025-11-21 (JD 2461000.5) |
|---|---|
| Eccentricity (e) | 0.6583678060 ± 1.76e-08 |
| Semi-major axis (a) | 2.1174129672 AU ± 4.08e-09 |
| Inclination (i) | 20.65229214° ± 7.37e-06 |
| Long. of Asc. Node (Ω) | 143.55227250° ± 2.63e-06 |
| Arg. of Perihelion (ω) | 262.86307290° ± 4.27e-06 |
| Mean Anomaly (M) | 93.32767985° ± 4.46e-06 |
| Mean Motion (n) | 0.3198924010°/day ± 9.25e-10 |
| Perihelion dist (q) | 0.72337644 AU ± 3.74e-08 |
| Aphelion dist (Q) | 3.51144950 AU ± 3.79e-08 |
| Orbital Period | 3.08111815 yr ± 8.91e-09 |
| H (abs. magnitude) | 20.06 |
|---|---|
| G (slope) | 0.15 |
2019 BR4
| Source | IAA |
|---|---|
| Solution Date | 2026-06-01 |
| RMS Residual | 0.293″ |
| Uncertainty | 0 |
| Orbit Type | Apollo |
| MOID | 0.048158 AU |
| Observations Used | 335 |
| Oppositions | 7 |
| Arc Total | 2012-2022 |
| First Observation Used | 2012-07-28 |
| Last Observation Used | 2022-03-01 |
| Date | Type | RA | Dec | Mag | Band | Observatory |
|---|---|---|---|---|---|---|
| 2012-07-30 00:09:32 | C | 22 54 33.11 | +08 56 17.8 | – | u | J95 |
| 2012-07-30 00:18:17 | C | 22 54 34.76 | +08 56 14.6 | – | u | J95 |
| 2012-07-30 00:27:29 | C | 22 54 36.50 | +08 56 11.6 | – | u | J95 |
| 2012-07-30 05:44:22 | C | 22 55 38.41 | +08 54 52.4 | – | u | 807 |
| 2012-07-30 05:50:19 | C | 22 55 39.55 | +08 54 50.0 | – | u | 807 |
| 2012-07-30 05:56:17 | C | 22 55 40.67 | +08 54 47.8 | – | u | 807 |
| 2012-07-30 06:02:21 | C | 22 55 41.81 | +08 54 45.4 | – | u | 807 |
| 2012-07-30 09:15:15 | C | 22 56 19.62 | +08 52 56.2 | 19.2 | c | 704 |
| 2012-07-30 09:15:25 | C | 22 56 19.70 | +08 52 55.0 | 19.0 | c | 704 |
| 2012-07-30 09:31:49 | C | 22 56 22.85 | +08 52 49.3 | 19.5 | c | 704 |
| 2012-07-30 09:31:58 | C | 22 56 22.90 | +08 52 49.0 | 19.1 | c | 704 |
| 2012-07-30 09:48:16 | C | 22 56 26.05 | +08 52 42.5 | 19.8 | c | 704 |
| 2012-07-30 09:48:25 | C | 22 56 26.05 | +08 52 42.5 | 19.2 | c | 704 |
| 2012-07-30 10:04:45 | C | 22 56 29.19 | +08 52 36.4 | 19.8 | c | 704 |
| 2012-07-30 10:04:54 | C | 22 56 29.24 | +08 52 35.4 | 19.4 | c | 704 |
| 2012-07-30 10:10:45 | C | 22 56 30.23 | +08 52 33.9 | – | u | 711 |
| 2012-07-30 10:11:39 | C | 22 56 30.40 | +08 52 33.7 | – | u | 711 |
| 2012-07-30 10:12:32 | C | 22 56 30.57 | +08 52 33.2 | – | u | 711 |
| 2012-07-30 10:13:26 | C | 22 56 30.74 | +08 52 32.9 | – | u | 711 |
| 2012-07-30 10:14:19 | C | 22 56 30.91 | +08 52 32.6 | – | u | 711 |
| 2012-07-30 10:15:12 | C | 22 56 31.09 | +08 52 32.2 | – | u | 711 |
| 2012-07-30 10:16:05 | C | 22 56 31.27 | +08 52 31.9 | – | u | 711 |
| 2012-07-30 10:16:59 | C | 22 56 31.42 | +08 52 31.4 | – | u | 711 |
| 2012-07-30 10:17:52 | C | 22 56 31.60 | +08 52 31.1 | – | u | 711 |
| 2012-07-30 10:18:46 | C | 22 56 31.78 | +08 52 30.8 | – | u | 711 |
| 2012-07-30 10:19:39 | C | 22 56 31.94 | +08 52 30.4 | – | u | 711 |
| 2012-07-30 10:20:32 | C | 22 56 32.11 | +08 52 29.9 | – | u | 711 |
| 2012-07-30 10:21:14 | C | 22 56 32.35 | +08 52 29.5 | 19.7 | c | 704 |
| 2012-07-30 10:21:24 | C | 22 56 32.39 | +08 52 28.7 | 19.4 | c | 704 |
| 2012-07-30 10:21:25 | C | 22 56 32.28 | +08 52 29.7 | – | u | 711 |
| 2012-07-30 10:22:19 | C | 22 56 32.46 | +08 52 29.2 | – | u | 711 |
| 2012-07-30 10:23:12 | C | 22 56 32.62 | +08 52 28.9 | – | u | 711 |
| 2012-07-30 10:24:06 | C | 22 56 32.80 | +08 52 28.5 | – | u | 711 |
| 2012-07-30 10:24:59 | C | 22 56 32.97 | +08 52 28.2 | – | u | 711 |
| 2012-07-30 10:25:52 | C | 22 56 33.14 | +08 52 27.8 | – | u | 711 |
| 2012-07-30 10:26:46 | C | 22 56 33.31 | +08 52 27.4 | – | u | 711 |
| 2012-07-30 10:27:39 | C | 22 56 33.48 | +08 52 27.1 | – | u | 711 |
| 2012-07-30 10:28:32 | C | 22 56 33.65 | +08 52 26.8 | – | u | 711 |
| 2012-07-31 05:18:25 | C | 23 00 29.05 | +08 44 46.7 | – | u | 807 |
| 2012-07-31 05:26:47 | C | 23 00 30.78 | +08 44 42.9 | – | u | 807 |
| 2012-07-31 05:33:24 | C | 23 00 32.15 | +08 44 40.3 | – | u | 807 |
| 2012-07-31 05:38:55 | C | 23 00 33.32 | +08 44 37.4 | – | u | 807 |
| 2012-07-31 09:12:04 | C | 23 01 18.68 | +08 42 20.8 | 18.5 | c | 704 |
| 2012-07-31 09:45:36 | C | 23 01 25.70 | +08 42 05.3 | 19.2 | c | 704 |
| 2012-07-31 10:02:28 | C | 23 01 29.20 | +08 41 56.4 | 19.3 | c | 704 |
| 2012-07-31 10:19:11 | C | 23 01 32.67 | +08 41 48.5 | 19.1 | c | 704 |
| 2012-08-02 00:14:42 | C | 23 10 25.52 | +08 20 26.3 | – | u | 160 |
| 2012-08-02 00:18:17 | C | 23 10 26.43 | +08 20 23.5 | – | u | 160 |
| 2012-08-02 00:22:14 | C | 23 10 27.35 | +08 20 20.9 | – | u | 160 |
| 2012-08-02 06:50:49 | C | 23 12 06.15 | +08 16 08.4 | – | v | H21 |