2025 SD4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5478050246 ± 5.05e-04
Semi-major axis (a)1.4354778309 AU ± 1.33e-03
Inclination (i)21.07786603° ± 1.86e-02
Long. of Asc. Node (Ω)182.36427777° ± 4.18e-04
Arg. of Perihelion (ω)271.66364327° ± 1.38e-02
Mean Anomaly (M)1.11545431° ± 1.26e-02
Mean Motion (n)0.5730830209°/day ± 7.96e-04
Perihelion dist (q)0.64911586 AU ± 9.42e-04
Aphelion dist (Q)2.22183980 AU ± 2.18e-03
Orbital Period1.71986649 yr ± 2.39e-03
Physical Parameters
H (abs. magnitude)25.94
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-03
RMS Residual0.344″
Uncertainty2
Orbit TypeApollo
MOID0.004420 AU
Observations Used41
Oppositions1
Arc Total2025-2025
First Observation Used2025-09-20
Last Observation Used2025-09-26
Observations (43)
Date Type RA Dec Mag Band Observatory
2025-09-20 08:37:42 C 00 16 37.014 +28 24 28.05 U I41
2025-09-20 09:32:23 C 00 16 47.830 +28 22 16.95 U I41
2025-09-20 09:33:04 C 00 16 47.994 +28 22 14.84 U I41
2025-09-21 07:14:36 C 00 22 43.833 +27 21 32.52 U I41
2025-09-21 07:55:26 C 00 22 54.972 +27 19 18.03 U I41
2025-09-21 08:28:02 C 00 23 03.883 +27 17 28.08 U I41
2025-09-21 08:29:23 C 00 23 04.257 +27 17 23.43 U I41
2025-09-22 23:50:18 C 00 40 28.37 +23 58 24.8 V K88
2025-09-22 23:54:33 C 00 40 30.88 +23 57 53.9 V K88
2025-09-22 23:58:47 C 00 40 33.28 +23 57 22.3 V K88
2025-09-23 00:05:31 C 00 40 37.10 +23 56 31.6 V K88
2025-09-23 00:37:17 C 00 40 55.53 +23 52 30.4 V K88
2025-09-23 00:37:54 C 00 40 59.758 +23 52 17.22 W J95
2025-09-23 00:42:02 C 00 40 58.28 +23 51 54.6 V K88
2025-09-23 00:43:29 C 00 41 03.031 +23 51 35.10 W J95
2025-09-23 00:46:47 C 00 41 01.09 +23 51 17.2 V K88
2025-09-23 00:49:06 C 00 41 06.305 +23 50 51.83 W J95
2025-09-23 00:54:29 C 00 41 09.482 +23 50 11.44 W J95
2025-09-23 01:21:11 C 00 41 21.40 +23 46 50.8 V K88
2025-09-23 01:26:32 C 00 41 24.54 +23 46 08.5 V K88
2025-09-23 01:31:53 C 00 41 27.76 +23 45 26.2 V K88
2025-09-23 03:53:07 C 00 43 14.07 +23 27 11.9 V H21
2025-09-23 03:57:09 C 00 43 16.58 +23 26 39.6 V H21
2025-09-23 04:01:11 C 00 43 19.10 +23 26 07.4 V H21
2025-09-23 04:04:32 C 00 43 21.22 +23 25 40.5 V H21
2025-09-23 08:29:44 C 00 46 21.052 +22 47 42.87 V U74
2025-09-23 08:34:21 C 00 46 24.110 +22 47 03.17 V U74
2025-09-23 10:05:46 B 00 47 28.536 +22 32 25.69 V U52
2025-09-23 10:46:09 B 00 47 57.420 +22 25 50.45 V U52
2025-09-24 07:58:31 C 01 09 31.381 +17 44 12.91 V 703
2025-09-24 08:01:46 C 01 09 35.406 +17 43 14.34 V 703
2025-09-24 08:05:02 C 01 09 39.467 +17 42 15.26 V 703
2025-09-24 08:08:17 C 01 09 43.398 +17 41 14.68 V 703
2025-09-24 10:02:28 B 01 12 13.044 +17 04 33.28 V U52
2025-09-24 10:06:42 B 01 12 18.629 +17 03 10.51 V U52
2025-09-24 10:10:54 B 01 12 24.101 +17 01 47.93 V U52
2025-09-24 23:55:59 B 01 36 21.046 +11 13 13.69 V L65
2025-09-25 00:16:53 B 01 37 04.543 +11 01 52.61 V L65
2025-09-25 00:36:59 B 01 37 46.759 +10 50 49.63 V L65
2025-09-26 02:17:42 C 03 11 40.037 -13 39 20.48 W J95
2025-09-26 02:19:06 C 03 11 47.947 -13 41 20.11 W J95
2025-09-26 02:23:35 C 03 12 13.332 -13 47 42.97 W J95
2025-09-26 02:26:14 C 03 12 28.385 -13 51 29.30 W J95