2001 EC16

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3640064516 ± 4.40e-08
Semi-major axis (a)1.3456524803 AU ± 3.95e-07
Inclination (i)4.71183995° ± 3.69e-06
Long. of Asc. Node (Ω)175.46700491° ± 6.31e-06
Arg. of Perihelion (ω)70.60099019° ± 2.13e-05
Mean Anomaly (M)258.79093925° ± 7.62e-04
Mean Motion (n)0.6314121024°/day ± 2.78e-07
Perihelion dist (q)0.85582630 AU ± 2.58e-07
Aphelion dist (Q)1.83547866 AU ± 5.42e-07
Orbital Period1.56098732 yr ± 6.88e-07
NGA Modelr2
A21.35407608e-12 ± 5.13e-13 AU/d²
Physical Parameters
H (abs. magnitude)22.38
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.398″
Uncertainty0
Orbit TypeApollo
MOID0.011752 AU
Observations Used186
Radar Obs Used10
Oppositions1
Arc Total2001-2015
First Observation Used2001-01-28
Last Observation Used2015-09-18
Observations (206)
Date Type RA Dec Mag Band Observatory
2001-03-18 04:35:09 C 11 46 22.93 +06 06 58.0 726
2001-03-18 04:37:38 C 11 46 23.59 +06 07 15.0 726
2001-03-18 04:38:54 C 11 46 29.45 +06 08 04.0 673
2001-03-18 04:40:09 C 11 46 24.30 +06 07 31.6 726
2001-03-18 04:42:39 C 11 46 24.99 +06 07 49.4 726
2001-03-18 04:44:45 C 11 46 25.57 +06 08 02.6 726
2001-03-18 05:16:35 C 11 46 33.73 +06 11 45.4 750
2001-03-18 05:34:48 C 11 46 38.67 +06 13 47.6 750
2001-03-18 05:40:49 C 11 46 40.35 +06 14 29.3 750
2001-03-18 05:45:39 C 11 46 41.59 +06 15 01.7 750
2001-03-18 05:51:44 C 11 46 43.31 +06 15 41.5 750
2001-03-18 06:03:43 C 11 46 46.57 +06 17 04.9 750
2001-03-18 06:10:54 C 11 46 48.51 +06 17 54.5 750
2001-03-18 06:26:10 C 11 46 52.73 +06 19 39.2 750
2001-03-18 07:50:12 C 11 47 20.09 +06 30 12.7 926
2001-03-18 07:50:46 C 11 47 20.22 +06 30 17.0 926
2001-03-18 07:51:22 C 11 47 20.36 +06 30 21.2 926
2001-03-18 08:58:28 C 11 47 51.14 +06 38 57.9 17.0 c 608
2001-03-18 09:14:20 C 11 47 55.51 +06 40 52.0 16.9 c 608
2001-03-18 09:30:15 C 11 47 59.86 +06 42 46.5 16.9 c 608
2001-03-18 12:15:02 C 11 49 00.34 +07 06 42.0 422
2001-03-18 12:16:10 C 11 49 00.68 +07 06 50.8 422
2001-03-18 12:16:42 C 11 49 00.83 +07 06 54.7 422
2001-03-18 14:24:33 C 11 49 41.99 +07 18 04.0 349
2001-03-18 14:25:48 C 11 49 42.32 +07 18 13.3 349
2001-03-18 14:27:19 C 11 49 42.77 +07 18 26.3 349
2001-03-18 14:28:29 C 11 49 43.13 +07 18 33.6 349
2001-03-18 14:29:38 C 11 49 43.50 +07 18 43.3 349
2001-03-18 19:27:28 C 11 51 46.99 +07 57 04.1 557
2001-03-18 19:29:02 C 11 51 47.57 +07 57 16.8 557
2001-03-18 19:29:49 C 11 51 47.85 +07 57 23.2 557
2001-03-18 19:31:23 C 11 51 48.44 +07 57 36.1 557
2001-03-18 19:33:41 C 11 51 51.15 +07 58 23.2 596
2001-03-18 19:36:46 C 11 51 52.30 +07 58 50.0 596
2001-03-18 19:39:46 C 11 51 53.33 +07 59 13.3 596
2001-03-18 20:03:04 C 11 52 03.87 +08 02 37.5 176
2001-03-18 20:09:24 C 11 52 06.03 +08 03 28.3 176
2001-03-18 20:13:55 C 11 52 07.76 +08 04 08.2 176
2001-03-18 20:17:05 C 11 52 08.94 +08 04 34.4 176
2001-03-19 03:35:15 C 11 55 13.81 +09 08 39.8 750
2001-03-19 03:50:15 C 11 55 19.86 +09 11 02.5 750
2001-03-19 04:06:18 C 11 55 26.44 +09 13 33.5 750
2001-03-19 04:16:19 C 11 55 30.45 +09 15 07.3 750
2001-03-19 04:36:19 C 11 55 38.50 +09 18 18.6 750
2001-03-19 07:19:06 C 11 56 49.08 +09 45 24.8 14.9 c 704
2001-03-19 07:38:09 C 11 56 56.87 +09 48 34.0 15.0 c 704
2001-03-19 07:57:14 C 11 57 04.70 +09 51 43.2 15.1 c 704
2001-03-19 08:16:16 C 11 57 12.55 +09 54 52.4 15.0 c 704
2001-03-19 08:35:20 C 11 57 20.50 +09 58 02.8 15.2 c 704
2001-03-19 20:49:24 C 12 04 22.67 +12 13 02.1 587
Radar Observations (10)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2001-03-24 08:40:00 -178088.7 3 Hz 8560 -14 -14
2001-03-24 09:10:00 11997683 20 us 8560 -14 -14
2001-03-24 11:20:00 -207772.45 0.1 Hz 8560 -14 -14
2001-03-24 12:00:00 12235160.9 1 us 8560 -14 -14
2001-03-24 12:20:00 12265649.1 0.38 us 8560 -14 -14
2001-03-24 12:20:00 -219438.23 0.25 Hz 8560 -14 -14
2001-03-25 13:30:00 -389030.7 0.2 Hz 8560 -14 -14
2001-03-25 13:40:00 -390249.6 0.1 Hz 8560 -14 -14
2001-03-25 14:10:00 15793328 1 us 8560 -14 -14
2001-03-26 13:53:00 -132358.87 0.03 Hz 2380 -9 -1
Station codes
-14 DSS-14 Goldstone (70-m) -9 Green Bank GBT (100-m) -1 Arecibo (305-m, 1963–2020)