IAA Minor Planet Database| Epoch (TDB) | 2025-11-21 (JD 2461000.5) |
|---|---|
| Eccentricity (e) | 0.7138620135 ± 1.49e-08 |
| Semi-major axis (a) | 2.7430809123 AU ± 1.67e-08 |
| Inclination (i) | 2.42591843° ± 2.63e-06 |
| Long. of Asc. Node (Ω) | 6.07706071° ± 2.56e-05 |
| Arg. of Perihelion (ω) | 268.71719953° ± 2.65e-05 |
| Mean Anomaly (M) | 26.60077850° ± 1.56e-07 |
| Mean Motion (n) | 0.2169473497°/day ± 1.98e-09 |
| Perihelion dist (q) | 0.78489965 AU ± 4.11e-08 |
| Aphelion dist (Q) | 4.70126218 AU ± 4.99e-08 |
| Orbital Period | 4.54315890 yr ± 4.15e-08 |
| NGA Model | r2 |
| A2 | -5.75894754e-13 ± 2.37e-14 AU/d² |
| H (abs. magnitude) | 20.88 |
|---|---|
| G (slope) | 0.15 |
2016 EC156
| Source | IAA |
|---|---|
| Solution Date | 2026-05-31 |
| RMS Residual | 0.197″ |
| Uncertainty | 0 |
| Orbit Type | Apollo |
| MOID | 0.019237 AU |
| Observations Used | 341 |
| Radar Obs Used | 1 |
| Oppositions | 21 |
| Arc Total | 1998-2025 |
| First Observation Used | 1998-09-17 |
| Last Observation Used | 2025-10-25 |
| Date | Type | RA | Dec | Mag | Band | Observatory |
|---|---|---|---|---|---|---|
| 2025-09-13 20:24:27 | C | 23 42 45.14 | -07 12 51.3 | – | X | C40 |
| 2025-09-13 20:26:40 | C | 23 42 45.00 | -07 12 48.1 | – | X | C40 |
| 2025-09-13 22:18:57 | B | 23 42 39.994 | -07 10 29.14 | – | W | Z80 |
| 2025-09-13 22:26:58 | B | 23 42 39.533 | -07 10 19.09 | – | W | Z80 |
| 2025-09-13 22:35:03 | B | 23 42 39.098 | -07 10 08.90 | – | W | Z80 |
| 2025-09-14 02:09:39 | C | 23 42 30.242 | -07 04 27.24 | – | W | W74 |
| 2025-09-14 02:10:48 | C | 23 42 30.176 | -07 04 25.87 | – | W | W74 |
| 2025-09-14 02:11:56 | C | 23 42 30.110 | -07 04 24.46 | – | W | W74 |
| 2025-09-14 02:13:05 | C | 23 42 30.042 | -07 04 23.07 | – | W | W74 |
| 2025-09-14 02:14:14 | C | 23 42 29.976 | -07 04 21.69 | – | W | W74 |
| 2025-09-14 02:15:24 | C | 23 42 29.908 | -07 04 20.25 | – | W | W74 |
| 2025-09-14 02:16:33 | C | 23 42 29.842 | -07 04 18.89 | – | W | W74 |
| 2025-09-14 02:47:44 | C | 23 42 24.842 | -07 04 37.16 | – | Z | G40 |
| 2025-09-14 03:08:18 | C | 23 42 23.618 | -07 04 11.60 | – | Z | G40 |
| 2025-09-14 03:23:27 | C | 23 42 22.718 | -07 03 52.88 | – | Z | G40 |
| 2025-09-14 03:45:32 | C | 23 42 24.538 | -07 02 30.72 | – | W | W74 |
| 2025-09-14 03:46:41 | C | 23 42 24.467 | -07 02 29.31 | – | W | W74 |
| 2025-09-14 03:47:50 | C | 23 42 24.395 | -07 02 27.93 | – | W | W74 |
| 2025-09-14 03:48:59 | C | 23 42 24.327 | -07 02 26.55 | – | W | W74 |
| 2025-09-14 03:50:09 | C | 23 42 24.258 | -07 02 25.13 | – | W | W74 |
| 2025-09-14 03:51:17 | C | 23 42 24.189 | -07 02 23.75 | – | W | W74 |
| 2025-09-14 03:52:27 | C | 23 42 24.118 | -07 02 22.32 | – | W | W74 |
| 2025-09-14 06:52:37 | C | 23 42 15.574 | -06 59 42.68 | – | V | 703 |
| 2025-09-14 06:55:53 | C | 23 42 15.376 | -06 59 38.54 | – | V | 703 |
| 2025-09-14 06:59:09 | C | 23 42 15.174 | -06 59 34.94 | – | V | 703 |
| 2025-09-14 07:02:25 | C | 23 42 14.965 | -06 59 30.88 | – | V | 703 |
| 2025-09-14 10:04:59 | C | 23 42 06.749 | -06 55 42.31 | – | V | T08 |
| 2025-09-14 10:08:56 | C | 23 42 06.516 | -06 55 37.56 | – | V | T08 |
| 2025-09-14 10:12:54 | C | 23 42 06.262 | -06 55 32.84 | – | V | T08 |
| 2025-09-14 10:20:21 | C | 23 42 05.820 | -06 55 24.17 | – | V | T08 |
| 2025-09-14 19:53:44 | C | 23 41 41.85 | -06 44 42.9 | – | X | C40 |
| 2025-09-14 19:56:09 | C | 23 41 41.71 | -06 44 40.0 | – | X | C40 |
| 2025-09-14 20:03:23 | C | 23 41 41.34 | -06 44 32.1 | – | X | C40 |
| 2025-09-14 20:05:48 | C | 23 41 41.20 | -06 44 29.2 | – | X | C40 |
| 2025-09-14 20:08:13 | C | 23 41 41.07 | -06 44 26.6 | – | X | C40 |
| 2025-09-14 20:10:37 | C | 23 41 40.96 | -06 44 23.9 | – | X | C40 |
| 2025-09-14 20:12:54 | C | 23 41 40.83 | -06 44 21.5 | – | X | C40 |
| 2025-09-14 20:15:07 | C | 23 41 40.72 | -06 44 19.0 | – | X | C40 |
| 2025-09-14 20:17:19 | C | 23 41 40.59 | -06 44 16.6 | – | X | C40 |
| 2025-09-14 20:19:32 | C | 23 41 40.47 | -06 44 13.7 | – | X | C40 |
| 2025-09-14 21:52:49 | B | 23 41 35.48 | -06 42 31.3 | – | X | L76 |
| 2025-09-14 22:03:11 | B | 23 41 34.93 | -06 42 19.9 | – | X | L76 |
| 2025-09-14 22:14:03 | B | 23 41 34.34 | -06 42 07.8 | – | X | L76 |
| 2025-09-15 01:03:32 | B | 23 41 29.914 | -06 38 14.21 | – | X | X76 |
| 2025-09-15 01:08:12 | B | 23 41 29.681 | -06 38 09.20 | – | X | X76 |
| 2025-09-15 01:11:21 | B | 23 41 29.542 | -06 38 07.19 | – | X | X76 |
| 2025-09-15 04:03:31 | C | 23 41 21.060 | -06 34 40.40 | – | V | W68 |
| 2025-09-15 04:08:07 | C | 23 41 20.854 | -06 34 35.36 | – | V | W68 |
| 2025-09-15 04:16:37 | C | 23 41 20.381 | -06 34 26.18 | – | V | W68 |
| 2025-09-15 04:25:49 | C | 23 41 19.879 | -06 34 16.43 | – | V | W68 |
| Epoch (UTC) | Value | Sigma | Units | Freq (MHz) | Receiver | Transmitter |
|---|---|---|---|---|---|---|
| 2025-09-02 09:50:00 | 35184874.99 | 3 | us | 8560 | -14 | -14 |