451397 (2011 EZ78)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5438130835 ± 3.64e-09
Semi-major axis (a)2.3920067282 AU ± 5.17e-09
Inclination (i)17.94362927° ± 2.02e-06
Long. of Asc. Node (Ω)109.81696948° ± 1.54e-06
Arg. of Perihelion (ω)179.73408355° ± 4.61e-06
Mean Anomaly (M)315.21566223° ± 5.09e-06
Mean Motion (n)0.2664211391°/day ± 8.64e-10
Perihelion dist (q)1.09120217 AU ± 9.02e-09
Aphelion dist (Q)3.69281128 AU ± 1.18e-08
Orbital Period3.69950480 yr ± 1.20e-08
Physical Parameters
H (abs. magnitude)17.22
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.254″
Uncertainty0
Orbit TypeAmor
MOID0.073101 AU
Observations Used716
Radar Obs Used1
Oppositions1
Arc Total2011-2025
First Observation Used2011-03-15
Last Observation Used2025-03-01
Observations (735)
Date Type RA Dec Mag Band Observatory
2011-09-25 01:05:38 C 00 29 07.79 -49 43 57.5 o 844
2011-09-25 01:19:42 C 00 29 07.27 -49 43 46.8 o 844
2011-09-25 01:25:05 C 00 29 07.07 -49 43 42.6 o 844
2011-09-25 01:35:05 C 00 29 06.70 -49 43 35.0 o 844
2011-10-19 13:31:55 C 00 19 05.61 -40 35 12.2 r E12
2011-10-19 14:04:26 C 00 19 05.40 -40 34 38.7 r E12
2011-10-25 06:50:31 C 00 19 18.38 -38 14 53.2 o 807
2011-10-25 06:56:31 C 00 19 18.44 -38 14 46.5 o 807
2011-10-25 07:10:53 C 00 19 18.45 -38 14 31.6 o 807
2011-10-29 05:22:48 C 00 19 59.82 -36 37 46.0 o 807
2011-10-29 05:30:09 C 00 19 59.86 -36 37 38.4 o 807
2011-10-29 05:37:30 C 00 19 59.94 -36 37 31.0 o 807
2011-10-29 05:54:05 C 00 20 00.04 -36 37 13.3 o 807
2011-10-30 00:11:39 C 00 20 11.93 -36 18 26.7 o 807
2011-10-30 00:20:25 C 00 20 12.01 -36 18 17.7 o 807
2011-10-30 00:27:08 C 00 20 12.06 -36 18 10.9 o 807
2011-11-02 13:20:29 C 00 21 14.10 -34 51 06.6 r E12
2011-11-02 14:01:36 C 00 21 14.63 -34 50 24.5 r E12
2011-11-14 00:18:53 C 00 26 38.71 -30 13 45.2 o 807
2011-11-14 00:40:55 C 00 26 39.23 -30 13 22.9 o 807
2011-12-19 02:33:38 C 00 56 52.70 -17 26 54.1 o 807
2011-12-19 02:43:15 C 00 56 53.13 -17 26 46.3 o 807
2011-12-19 02:52:55 C 00 56 53.56 -17 26 38.4 o 807
2014-02-24 04:45:48 C 09 01 09.50 +29 12 52.7 u H21
2014-02-24 05:06:00 C 09 01 08.66 +29 12 57.8 u H21
2014-02-24 05:30:47 C 09 01 07.55 +29 13 02.9 u H21
2015-10-10 12:51:12 C 04 43 33.534 -01 53 40.33 L F51
2015-10-10 13:07:10 C 04 43 33.147 -01 53 43.90 L F51
2015-10-10 13:23:08 C 04 43 32.753 -01 53 47.52 L F51
2015-10-10 13:39:06 C 04 43 32.356 -01 53 51.28 L F51
2015-10-12 13:51:02 C 04 42 21.414 -02 04 43.51 L F51
2015-10-12 14:39:12 C 04 42 20.075 -02 04 54.41 L F51
2015-10-13 13:36:20 C 04 41 43.295 -02 09 59.01 L F51
2015-10-13 13:52:05 C 04 41 42.835 -02 10 02.55 L F51
2015-10-13 14:06:15 C 04 41 42.427 -02 10 05.62 L F51
2015-11-09 08:51:40 C 04 13 42.95 -03 41 50.2 u 926
2015-11-09 09:21:36 C 04 13 41.25 -03 41 50.7 u 926
2015-11-09 09:46:35 C 04 13 39.89 -03 41 52.1 u 926
2015-11-17 09:50:55 C 04 02 59.169 -03 41 05.05 L F51
2015-11-17 10:07:46 C 04 02 58.195 -03 41 04.36 L F51
2015-11-17 10:24:36 C 04 02 57.247 -03 41 03.58 L F51
2015-12-07 08:34:58 C 03 38 33.295 -02 33 29.06 L F51
2015-12-07 08:54:04 C 03 38 32.441 -02 33 24.62 L F51
2015-12-07 09:13:10 C 03 38 31.604 -02 33 20.33 L F51
2015-12-07 09:32:23 C 03 38 30.740 -02 33 15.70 L F51
2015-12-08 06:02:13 C 03 37 38.07 -02 28 31.0 o 691
2015-12-08 06:07:47 C 03 37 37.83 -02 28 29.7 o 691
2015-12-08 06:13:42 C 03 37 37.62 -02 28 27.9 o 691
2015-12-09 08:37:35 C 03 36 31.493 -02 22 07.51 L F51
2015-12-09 08:55:47 C 03 36 30.724 -02 22 03.11 L F51
Radar Observations (2)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2011-07-09 07:30:00 95885289.07 10 us 8560 -14 -14
2011-07-09.312500 9588528907 10000 us 8560 253 253
Station codes
-14 DSS-14 Goldstone (70-m)