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
2001-01-28 08:49:11 C 10 56 31.92 -03 49 23.9 568
2001-01-28 09:01:10 C 10 56 32.16 -03 49 26.8 568
2001-01-28 09:02:13 C 10 56 32.18 -03 49 27.1 568
2001-01-28 09:14:13 C 10 56 32.47 -03 49 30.9 568
2001-01-28 09:20:32 C 10 56 32.71 -03 49 34.0 568
2001-01-28 09:32:31 C 10 56 33.01 -03 49 37.0 568
2001-01-28 09:33:33 C 10 56 33.05 -03 49 37.8 568
2001-01-28 09:45:33 C 10 56 33.34 -03 49 41.6 568
2001-03-15 12:52:56 C 11 32 04.97 +01 11 22.6 16.0 c 608
2001-03-15 13:07:56 C 11 32 06.67 +01 12 11.0 16.0 c 608
2001-03-15 13:23:20 C 11 32 08.47 +01 13 00.8 16.0 c 608
2001-03-15 20:16:28 C 11 33 27.07 +01 34 51.4 557
2001-03-15 20:18:05 C 11 33 27.29 +01 34 57.1 557
2001-03-15 20:20:10 C 11 33 27.57 +01 35 04.2 557
2001-03-15 20:21:46 C 11 33 27.80 +01 35 10.1 557
2001-03-15 20:23:23 C 11 33 28.01 +01 35 15.6 557
2001-03-15 21:56:31 C 11 33 42.91 +01 41 00.9 165
2001-03-15 22:11:35 C 11 33 44.87 +01 41 54.4 165
2001-03-15 22:20:01 C 11 33 46.01 +01 42 24.5 165
2001-03-15 22:22:42 C 11 33 46.34 +01 42 34.2 165
2001-03-16 01:36:52 C 11 34 21.55 +01 58 09.2 844
2001-03-16 01:41:06 C 11 34 22.03 +01 58 23.9 844
2001-03-16 01:47:58 C 11 34 22.98 +01 58 50.4 844
2001-03-16 01:56:03 C 11 34 23.95 +01 59 19.8 844
2001-03-16 02:04:18 C 11 34 25.05 +01 59 50.4 844
2001-03-16 05:04:54 C 11 34 58.78 +02 07 34.9 15.7 854
2001-03-16 05:06:17 C 11 34 58.96 +02 07 40.6 15.7 854
2001-03-16 05:07:41 C 11 34 59.18 +02 07 46.7 15.6 854
2001-03-16 12:44:29 C 11 36 22.02 +02 41 21.5 428
2001-03-16 12:48:02 C 11 36 22.45 +02 41 36.0 428
2001-03-16 12:59:56 C 11 36 24.28 +02 42 26.3 428
2001-03-16 13:46:14 C 11 36 21.14 +02 42 48.9 17.7 c 608
2001-03-16 13:54:56 C 11 36 22.52 +02 43 25.4 17.6 c 608
2001-03-16 14:01:46 C 11 36 23.67 +02 43 52.8 18.0 c 608
2001-03-16 14:10:17 C 11 36 25.06 +02 44 29.0 17.4 c 608
2001-03-16 14:12:51 C 11 36 34.81 +02 47 31.3 428
2001-03-16 14:17:16 C 11 36 26.25 +02 44 58.1 17.7 c 608
2001-03-16 14:26:23 C 11 36 27.78 +02 45 36.6 17.5 c 608
2001-03-16 14:49:19 C 11 36 47.65 +02 50 16.5 322
2001-03-16 14:52:28 C 11 36 48.13 +02 50 33.0 322
2001-03-16 15:14:04 C 11 36 51.43 +02 52 04.4 322
2001-03-16 18:42:46 C 11 37 39.58 +03 02 38.1 046
2001-03-16 18:45:11 C 11 37 40.05 +03 02 48.9 046
2001-03-16 18:45:58 C 11 37 40.19 +03 02 52.6 046
2001-03-16 18:46:48 C 11 37 40.36 +03 02 56.1 046
2001-03-16 18:48:37 C 11 37 40.70 +03 03 04.3 046
2001-03-16 21:38:31 C 11 38 14.50 +03 16 08.9 165
2001-03-16 21:39:40 C 11 38 14.69 +03 16 14.2 165
2001-03-16 21:42:01 C 11 38 15.11 +03 16 25.2 165
2001-03-16 21:43:54 C 11 38 12.48 +03 16 16.0 118
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)