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 |
|---|---|---|---|---|---|---|
| 2025-09-07 23:26:02 | B | 23 53 51.538 | -12 13 27.91 | – | V | L65 |
| 2025-09-07 23:30:29 | B | 23 53 50.834 | -12 13 12.47 | – | V | L65 |
| 2025-09-07 23:34:24 | B | 23 53 50.256 | -12 12 59.00 | – | V | L65 |
| 2025-09-11 04:20:56 | C | 23 46 25.344 | -08 52 45.98 | – | V | R17 |
| 2025-09-11 04:26:09 | C | 23 46 24.905 | -08 52 35.87 | – | V | R17 |
| 2025-09-11 04:31:13 | C | 23 46 24.470 | -08 52 26.11 | – | V | R17 |
| 2025-09-11 04:35:38 | C | 23 46 24.110 | -08 52 17.58 | – | V | R17 |
| 2025-09-11 21:06:50 | B | 23 45 21.41 | -08 22 46.1 | – | X | L76 |
| 2025-09-11 21:13:00 | B | 23 45 20.94 | -08 22 35.9 | – | X | L76 |
| 2025-09-11 21:19:09 | B | 23 45 20.43 | -08 22 25.5 | – | X | L76 |
| 2025-09-11 21:25:19 | B | 23 45 19.95 | -08 22 15.2 | – | X | L76 |
| 2025-09-11 21:31:28 | B | 23 45 19.50 | -08 22 04.3 | – | X | L76 |
| 2025-09-12 21:35:40 | C | 23 43 55.91 | -07 44 01.7 | – | V | G17 |
| 2025-09-12 21:43:10 | C | 23 43 55.41 | -07 43 50.5 | – | V | G17 |
| 2025-09-12 21:50:42 | C | 23 43 54.91 | -07 43 40.1 | – | V | G17 |
| 2025-09-12 22:26:35 | B | 23 43 51.00 | -07 42 50.3 | – | X | L76 |
| 2025-09-12 22:32:48 | B | 23 43 50.55 | -07 42 41.0 | – | X | L76 |
| 2025-09-12 22:39:02 | B | 23 43 50.15 | -07 42 32.2 | – | X | L76 |
| 2025-09-12 22:45:15 | B | 23 43 49.72 | -07 42 22.7 | – | X | L76 |
| 2025-09-12 22:51:29 | B | 23 43 49.34 | -07 42 13.5 | – | X | L76 |
| 2025-09-13 01:08:18 | C | 23 43 40.858 | -07 37 37.38 | – | V | M22 |
| 2025-09-13 01:27:19 | C | 23 43 39.605 | -07 37 09.95 | – | V | M22 |
| 2025-09-13 01:42:37 | C | 23 43 38.599 | -07 36 48.06 | – | V | M22 |
| 2025-09-13 02:13:20 | C | 23 43 41.874 | -07 36 07.54 | – | W | W74 |
| 2025-09-13 02:14:19 | C | 23 43 36.576 | -07 36 02.02 | – | V | M22 |
| 2025-09-13 02:14:30 | C | 23 43 41.799 | -07 36 05.90 | – | W | W74 |
| 2025-09-13 02:15:39 | C | 23 43 41.725 | -07 36 04.32 | – | W | W74 |
| 2025-09-13 02:16:48 | C | 23 43 41.647 | -07 36 02.73 | – | W | W74 |
| 2025-09-13 02:17:57 | C | 23 43 41.573 | -07 36 01.07 | – | W | W74 |
| 2025-09-13 02:19:06 | C | 23 43 41.496 | -07 35 59.47 | – | W | W74 |
| 2025-09-13 02:20:14 | C | 23 43 41.424 | -07 35 57.92 | – | W | W74 |
| 2025-09-13 03:32:25 | C | 23 43 36.50 | -07 34 13.9 | – | o | X19 |
| 2025-09-13 03:33:36 | C | 23 43 36.506 | -07 34 15.43 | – | W | W74 |
| 2025-09-13 03:34:45 | C | 23 43 36.430 | -07 34 13.81 | – | W | W74 |
| 2025-09-13 03:35:54 | C | 23 43 36.350 | -07 34 12.21 | – | W | W74 |
| 2025-09-13 03:37:04 | C | 23 43 36.270 | -07 34 10.62 | – | W | W74 |
| 2025-09-13 03:38:14 | C | 23 43 36.194 | -07 34 09.00 | – | W | W74 |
| 2025-09-13 03:39:22 | C | 23 43 36.111 | -07 34 07.38 | – | W | W74 |
| 2025-09-13 03:40:31 | C | 23 43 36.038 | -07 34 05.83 | – | W | W74 |
| 2025-09-13 04:16:07 | C | 23 43 33.49 | -07 33 14.0 | – | o | X19 |
| 2025-09-13 04:48:52 | C | 23 43 31.30 | -07 32 28.8 | – | o | X19 |
| 2025-09-13 20:00:16 | C | 23 42 46.60 | -07 13 21.6 | – | X | C40 |
| 2025-09-13 20:05:05 | C | 23 42 46.31 | -07 13 15.6 | – | X | C40 |
| 2025-09-13 20:07:30 | C | 23 42 46.16 | -07 13 12.7 | – | X | C40 |
| 2025-09-13 20:10:01 | C | 23 42 46.00 | -07 13 09.5 | – | X | C40 |
| 2025-09-13 20:12:31 | C | 23 42 45.86 | -07 13 06.2 | – | X | C40 |
| 2025-09-13 20:14:55 | C | 23 42 45.72 | -07 13 03.2 | – | X | C40 |
| 2025-09-13 20:17:19 | C | 23 42 45.58 | -07 12 59.9 | – | X | C40 |
| 2025-09-13 20:19:44 | C | 23 42 45.43 | -07 12 56.8 | – | X | C40 |
| 2025-09-13 20:22:09 | C | 23 42 45.28 | -07 12 54.0 | – | X | C40 |
| Epoch (UTC) | Value | Sigma | Units | Freq (MHz) | Receiver | Transmitter |
|---|---|---|---|---|---|---|
| 2025-09-02 09:50:00 | 35184874.99 | 3 | us | 8560 | -14 | -14 |