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
2003-03-12 09:01:45 C 13 13 30.55 -23 45 02.6 18.5 c 704
2003-03-12 09:21:14 C 13 13 32.42 -23 45 39.4 18.9 c 704
2003-03-12 09:40:27 C 13 13 34.33 -23 46 14.7 18.8 c 704
2003-03-12 09:59:54 C 13 13 36.26 -23 46 50.5 18.9 c 704
2003-03-12 10:19:10 C 13 13 38.19 -23 47 25.2 19.2 c 704
2003-03-13 04:15:14 C 13 15 36.96 -24 21 21.2 o 620
2003-03-13 04:23:38 C 13 15 37.85 -24 21 37.1 o 620
2003-03-13 06:42:50 C 13 15 56.35 -24 26 04.7 c 854
2003-03-13 06:45:25 C 13 15 56.82 -24 26 10.2 c 854
2003-03-13 06:48:03 C 13 15 57.10 -24 26 15.0 c 854
2003-03-13 09:06:40 C 13 16 11.53 -24 30 48.0 18.7 c 704
2003-03-13 09:27:00 C 13 16 13.64 -24 31 27.0 19.2 c 704
2003-03-13 09:47:49 C 13 16 15.90 -24 32 07.2 19.1 c 704
2003-03-13 10:08:37 C 13 16 18.02 -24 32 48.5 18.7 c 704
2003-03-13 10:29:17 C 13 16 20.28 -24 33 28.1 19.0 c 704
2003-03-13 12:52:50 C 13 16 38.54 -24 37 24.7 c 474
2003-03-13 12:54:50 C 13 16 38.75 -24 37 28.6 c 474
2003-03-13 13:03:19 C 13 16 39.66 -24 37 45.5 c 474
2003-03-13 13:06:59 C 13 16 40.92 -24 37 58.0 e 413
2003-03-13 15:39:04 C 13 16 57.10 -24 43 03.8 m 428
2003-03-13 15:43:36 C 13 16 57.54 -24 43 12.1 m 428
2003-03-13 16:01:01 C 13 16 59.46 -24 43 47.4 m 428
2003-03-14 08:56:36 C 13 19 01.53 -25 18 28.8 18.4 c 704
2003-03-14 09:15:42 C 13 19 03.68 -25 19 08.6 19.1 c 704
2003-03-14 09:34:48 C 13 19 05.85 -25 19 47.6 18.6 c 704
2003-03-14 09:54:00 C 13 19 07.99 -25 20 27.4 18.7 c 704
2003-03-14 11:18:55 C 13 19 20.57 -25 22 32.8 c 474
2003-03-14 11:21:54 C 13 19 20.91 -25 22 39.1 c 474
2003-03-14 11:26:00 C 13 19 21.41 -25 22 47.5 c 474
2003-03-14 16:51:16 C 13 19 59.26 -25 34 05.2 c 474
2003-03-14 16:53:47 C 13 19 59.55 -25 34 10.2 c 474
2003-03-14 16:56:16 C 13 19 59.82 -25 34 15.3 c 474
2003-03-15 16:36:35 C 13 23 05.50 -26 25 19.4 e 413
2003-03-24 16:55:36 C 14 07 44.58 -36 59 36.2 e 413
2003-03-24 16:57:35 C 14 07 45.18 -36 59 43.7 e 413
2003-03-29 15:11:10 C 15 00 43.54 -45 34 07.6 m 428
2003-03-29 15:15:12 C 15 00 46.02 -45 34 26.4 m 428
2003-03-29 15:19:21 C 15 00 48.42 -45 34 46.6 m 428
2003-04-05 17:08:01 C 17 59 35.07 -55 31 09.1 c E14
2003-04-05 17:09:04 C 17 59 36.57 -55 31 10.1 c E14
2003-04-05 17:11:09 C 17 59 39.46 -55 31 10.9 c E14
2003-04-05 17:12:12 C 17 59 41.01 -55 31 11.1 c E14
2003-04-05 17:13:13 C 17 59 42.41 -55 31 11.8 c E14
2003-04-05 17:16:21 C 17 59 46.77 -55 31 11.8 c E14
2003-04-05 18:31:53 C 18 01 33.92 -55 31 35.0 m 428
2003-04-05 18:33:18 C 18 01 35.88 -55 31 36.1 m 428
2003-04-05 18:34:43 C 18 01 37.91 -55 31 35.4 m 428
2003-04-05 18:36:06 C 18 01 39.85 -55 31 35.5 m 428
2003-04-12 18:48:29 C 21 22 00.30 -43 07 47.9 m 428
2003-04-14 19:04:48 C 21 53 28.49 -37 47 37.6 e 413