163697 (2003 EF54)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4731023031 ± 2.02e-08
Semi-major axis (a)1.6089409988 AU ± 2.43e-09
Inclination (i)2.95385920° ± 2.05e-06
Long. of Asc. Node (Ω)268.45031910° ± 8.82e-05
Arg. of Perihelion (ω)353.83324800° ± 8.64e-05
Mean Anomaly (M)9.45753508° ± 7.10e-06
Mean Motion (n)0.4829499200°/day ± 1.09e-09
Perihelion dist (q)0.84774731 AU ± 3.25e-08
Aphelion dist (Q)2.37013469 AU ± 3.27e-08
Orbital Period2.04084573 yr ± 4.62e-09
Physical Parameters
H (abs. magnitude)20.08
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.464″
Uncertainty0
Orbit TypeApollo
MOID0.042363 AU
Observations Used217
Oppositions6
Arc Total2003-2015
First Observation Used2003-03-12
Last Observation Used2015-01-16
Observations (225)
Date Type RA Dec Mag Band Observatory
2007-09-05 10:54:02 C 01 11 50.10 +20 51 47.6 r 703
2007-09-05 11:05:35 C 01 11 48.66 +20 51 38.6 r 703
2007-09-05 11:16:47 C 01 11 47.29 +20 51 30.1 r 703
2007-09-12 06:52:58 C 00 53 09.27 +18 32 15.7 r 703
2007-09-12 07:04:21 C 00 53 07.98 +18 32 06.5 r 703
2007-09-12 07:15:11 C 00 53 06.61 +18 31 57.1 r 703
2007-09-12 07:26:04 C 00 53 05.46 +18 31 47.2 r 703
2007-09-18 09:39:10 C 00 37 38.02 +16 19 26.2 r 703
2007-09-18 09:49:13 C 00 37 36.87 +16 19 17.2 r 703
2007-09-18 09:59:15 C 00 37 35.94 +16 19 08.0 r 703
2007-09-18 10:09:14 C 00 37 34.82 +16 18 59.4 r 703
2007-10-07 05:31:22 C 00 03 05.36 +10 04 34.8 r 703
2007-10-07 05:40:33 C 00 03 04.93 +10 04 28.4 r 703
2007-10-07 05:49:49 C 00 03 04.35 +10 04 20.8 r 703
2007-10-07 05:59:03 C 00 03 03.88 +10 04 15.6 r 703
2007-10-09 05:07:50 C 00 00 46.12 +09 32 25.3 20.2 c 704
2007-10-09 05:23:33 C 00 00 45.41 +09 32 16.3 20.2 c 704
2007-10-09 05:55:20 C 00 00 43.79 +09 31 55.4 20.1 c 704
2007-10-13 04:36:13 C 23 56 52.11 +08 33 27.9 r 703
2007-10-13 04:46:35 C 23 56 51.86 +08 33 21.0 r 703
2007-10-13 04:57:02 C 23 56 51.28 +08 33 15.6 r 703
2007-10-13 05:07:22 C 23 56 50.89 +08 33 07.8 r 703
2007-11-11 02:44:07 C 23 53 12.44 +04 52 48.2 r G96
2007-11-11 02:56:17 C 23 53 12.73 +04 52 47.0 r G96
2007-11-11 03:08:20 C 23 53 12.91 +04 52 46.8 r G96
2007-11-11 03:20:19 C 23 53 13.05 +04 52 44.9 r G96
2009-01-18 08:26:32 C 09 39 43.74 +09 42 35.4 o 691
2009-01-18 08:52:37 C 09 39 42.50 +09 42 37.1 o 691
2009-01-18 09:19:05 C 09 39 41.24 +09 42 39.0 o 691
2009-08-14 19:45:54 C 14 51 03.27 +30 11 00.2 w 160
2009-08-14 19:51:35 C 14 51 10.39 +30 11 17.4 w 160
2009-08-14 19:54:43 C 14 51 14.37 +30 11 26.7 w 160
2009-08-15 01:56:07 C 14 59 05.08 +30 30 07.5 r 932
2009-08-15 02:02:07 C 14 59 12.89 +30 30 24.2 r 932
2009-08-15 02:09:04 C 14 59 21.93 +30 30 43.3 r 932
2009-08-17 22:04:40 C 16 39 48.97 +31 45 49.5 v J69
2009-08-17 22:05:56 C 16 39 50.94 +31 45 47.8 v J69
2009-08-17 22:07:13 C 16 39 52.87 +31 45 46.3 v J69
2009-08-17 22:18:14 C 16 40 09.71 +31 45 31.5 v J69
2009-08-17 22:21:31 C 16 40 14.68 +31 45 27.5 v J69
2009-08-18 20:37:14 C 17 14 18.94 +31 03 13.0 c B67
2009-08-18 21:36:46 C 17 15 46.01 +31 00 28.4 o B75
2009-08-18 21:52:38 C 17 16 09.26 +30 59 42.1 o B75
2009-08-18 22:19:14 C 17 16 48.47 +30 58 22.0 c B67
2009-08-18 22:52:52 C 17 17 37.87 +30 56 42.4 c B67
2009-08-20 05:04:22 C 18 00 25.45 +29 10 02.4 r 703
2009-08-20 05:12:27 C 18 00 35.89 +29 09 27.0 r 703
2009-08-20 05:20:35 C 18 00 46.36 +29 08 51.4 r 703
2009-08-20 05:28:59 C 18 00 57.24 +29 08 15.0 r 703
2009-08-20 20:43:48 C 18 20 30.10 +27 59 26.0 w 160