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
2001-03-19 20:50:59 C 12 04 23.54 +12 13 21.8 587
2001-03-19 20:52:35 C 12 04 24.46 +12 13 41.6 587
2001-03-19 20:58:35 C 12 04 27.84 +12 14 56.8 587
2001-03-21 16:11:40 C 12 48 59.36 +25 55 47.1 322
2001-03-21 16:14:51 C 12 49 04.32 +25 57 15.1 322
2001-03-21 16:18:04 C 12 49 09.50 +25 58 46.8 322
2001-03-21 17:07:01 C 12 50 26.94 +26 21 31.5 322
2001-03-21 17:10:16 C 12 50 31.95 +26 22 59.7 322
2001-03-21 17:13:36 C 12 50 37.32 +26 24 33.3 322
2001-03-23 02:22:57 C 14 36 52.47 +45 43 12.0 916
2001-03-23 02:23:08 C 14 36 53.50 +45 43 18.8 916
2001-03-23 02:23:21 C 14 36 54.65 +45 43 27.6 916
2001-03-23 02:23:33 C 14 36 55.75 +45 43 35.6 916
2001-03-23 02:23:46 C 14 36 56.87 +45 43 44.4 916
2001-03-23 02:23:59 C 14 36 57.96 +45 43 52.2 916
2001-03-23 02:24:10 C 14 36 59.15 +45 44 00.5 916
2001-03-23 02:24:22 C 14 37 00.24 +45 44 08.6 916
2001-03-23 02:24:36 C 14 37 01.30 +45 44 16.8 916
2001-03-23 02:24:48 C 14 37 02.46 +45 44 24.7 916
2001-03-23 02:34:53 C 14 37 56.75 +45 51 00.9 916
2001-03-23 02:35:43 C 14 38 01.30 +45 51 33.9 916
2001-03-23 02:35:53 C 14 38 02.42 +45 51 42.3 916
2001-03-23 02:36:08 C 14 38 03.53 +45 51 50.1 916
2001-03-23 02:36:19 C 14 38 04.62 +45 51 57.7 916
2001-03-23 02:36:32 C 14 38 05.79 +45 52 06.6 916
2001-03-24 11:20:21 C 18 39 39.73 +53 21 49.1 568
2001-03-24 11:23:57 C 18 40 04.11 +53 21 01.1 568
2001-03-24 22:43:40 C 19 44 49.40 +49 22 34.6 540
2001-03-24 22:48:29 C 19 45 12.74 +49 20 46.7 540
2001-03-24 22:52:14 C 19 45 30.49 +49 19 24.1 540
2001-03-24 22:53:44 C 19 45 37.74 +49 18 49.2 540
2001-03-24 22:55:20 C 19 45 45.28 +49 18 13.9 540
2001-03-24 22:56:49 C 19 45 52.37 +49 17 40.3 540
2001-03-24 22:58:25 C 19 45 59.81 +49 17 05.5 540
2014-12-30 10:30:51 C 09 17 37.44 +05 40 16.9 o 695
2014-12-30 10:41:19 C 09 17 37.32 +05 40 15.1 o 695
2014-12-30 11:07:47 C 09 17 36.99 +05 40 10.4 o 695
2015-01-15 02:00:16 C 09 07 09.39 +05 12 51.2 t 950
2015-01-15 02:03:59 C 09 07 09.23 +05 12 51.6 t 950
2015-01-15 02:05:50 C 09 07 09.12 +05 12 51.6 t 950
2015-01-15 02:08:37 C 09 07 08.97 +05 12 51.8 t 950
2015-07-25 13:32:04 C 01 51 50.914 +21 20 48.88 L F51
2015-07-25 13:32:59 C 01 51 50.914 +21 20 48.45 L F51
2015-07-25 13:51:41 C 01 51 50.897 +21 20 39.47 L F51
2015-07-25 13:52:27 C 01 51 50.896 +21 20 38.95 L F51
2015-07-25 14:11:23 C 01 51 50.861 +21 20 29.72 L F51
2015-07-25 14:12:10 C 01 51 50.856 +21 20 29.24 L F51
2015-07-25 14:31:17 C 01 51 50.833 +21 20 20.03 L F51
2015-07-25 14:32:12 C 01 51 50.823 +21 20 19.55 L F51
2015-08-25 08:57:06 C 01 34 55.61 +13 25 40.6 u H21
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)