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
2001-03-16 21:43:54 C 11 38 15.44 +03 16 34.2 165
2001-03-16 21:46:08 C 11 38 12.88 +03 16 26.3 118
2001-03-16 21:50:06 C 11 38 13.59 +03 16 44.4 118
2001-03-16 22:49:58 C 11 38 27.56 +03 21 45.7 952
2001-03-16 22:51:31 C 11 38 27.84 +03 21 53.3 952
2001-03-16 22:53:10 C 11 38 28.12 +03 22 01.0 952
2001-03-16 23:01:47 C 11 38 29.64 +03 22 41.0 952
2001-03-16 23:05:16 C 11 38 30.21 +03 22 57.2 952
2001-03-16 23:11:24 C 11 38 31.28 +03 23 26.1 952
2001-03-17 03:00:12 C 11 39 20.04 +03 45 05.9 859
2001-03-17 03:02:33 C 11 39 20.48 +03 45 16.5 859
2001-03-17 03:04:53 C 11 39 20.85 +03 45 28.0 859
2001-03-17 03:12:15 C 11 39 30.48 +03 42 05.6 726
2001-03-17 03:13:52 C 11 39 22.43 +03 46 12.5 859
2001-03-17 03:16:17 C 11 39 22.82 +03 46 23.8 859
2001-03-17 03:17:15 C 11 39 31.51 +03 42 30.0 726
2001-03-17 03:22:14 C 11 39 32.50 +03 42 54.1 726
2001-03-17 03:27:14 C 11 39 33.52 +03 43 18.2 726
2001-03-17 03:32:15 C 11 39 34.49 +03 43 43.7 726
2001-03-17 03:37:15 C 11 39 35.50 +03 44 08.0 726
2001-03-17 03:45:21 C 11 39 37.11 +03 44 47.7 726
2001-03-17 03:50:22 C 11 39 38.14 +03 45 12.0 726
2001-03-17 03:55:22 C 11 39 39.07 +03 45 37.4 726
2001-03-17 03:59:51 C 11 39 40.81 +03 46 22.5 14.2 649
2001-03-17 04:00:21 C 11 39 40.06 +03 46 01.4 726
2001-03-17 04:02:15 C 11 39 41.29 +03 46 34.4 14.7 649
2001-03-17 04:05:21 C 11 39 41.04 +03 46 26.4 726
2001-03-17 04:06:04 C 11 39 42.03 +03 46 52.6 14.2 649
2001-03-17 04:09:50 C 11 39 42.79 +03 47 10.5 14.6 649
2001-03-17 04:10:22 C 11 39 42.05 +03 46 51.5 726
2001-03-17 06:32:52 C 11 40 14.91 +03 59 21.5 670
2001-03-17 07:10:24 C 11 40 21.77 +04 02 34.6 673
2001-03-17 07:12:38 C 11 40 22.17 +04 02 45.9 673
2001-03-17 08:20:03 C 11 40 35.23 +04 08 30.9 670
2001-03-17 09:58:16 C 11 40 54.50 +04 17 02.3 670
2001-03-17 22:00:15 C 11 44 22.56 +05 25 05.7 165
2001-03-17 22:05:10 C 11 44 23.75 +05 25 35.9 165
2001-03-17 22:09:59 C 11 44 24.89 +05 26 05.6 165
2001-03-17 22:11:42 C 11 44 25.35 +05 26 16.3 165
2001-03-17 22:27:42 C 11 44 29.54 +05 27 57.6 946
2001-03-17 22:29:03 C 11 44 29.88 +05 28 05.8 946
2001-03-17 22:35:39 C 11 44 31.47 +05 28 47.1 946
2001-03-18 03:28:52 C 11 46 05.76 +06 00 02.1 649
2001-03-18 03:32:57 C 11 46 06.85 +06 00 28.9 649
2001-03-18 03:37:52 C 11 46 08.21 +06 01 01.8 649
2001-03-18 03:43:37 C 11 46 13.24 +06 02 00.7 854
2001-03-18 03:45:00 C 11 46 13.64 +06 02 09.8 854
2001-03-18 03:46:22 C 11 46 14.00 +06 02 19.3 854
2001-03-18 04:30:54 C 11 46 27.25 +06 07 10.6 673
2001-03-18 04:32:38 C 11 46 22.23 +06 06 41.5 726
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)