2025 SG81

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6325114550 ± 2.46e-06
Semi-major axis (a)2.1537682425 AU ± 1.18e-05
Inclination (i)10.14679935° ± 3.42e-05
Long. of Asc. Node (Ω)314.06002548° ± 1.01e-04
Arg. of Perihelion (ω)175.12297464° ± 4.85e-05
Mean Anomaly (M)339.40838478° ± 1.65e-04
Mean Motion (n)0.3118270763°/day ± 2.56e-06
Perihelion dist (q)0.79148516 AU ± 6.84e-06
Aphelion dist (Q)3.51605133 AU ± 2.00e-05
Orbital Period3.16081046 yr ± 2.60e-05
Physical Parameters
H (abs. magnitude)19.62
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-03
RMS Residual0.135″
Uncertainty0
Orbit TypeApollo
MOID0.140532 AU
Observations Used96
Oppositions1
Arc Total2025-2025
First Observation Used2025-09-30
Last Observation Used2025-12-28
Observations (98)
Date Type RA Dec Mag Band Observatory
2025-09-30 08:26:43 C 01 14 05.612 +29 58 54.88 X F52
2025-09-30 08:43:16 C 01 14 04.557 +29 59 02.15 X F52
2025-09-30 08:59:50 C 01 14 03.463 +29 59 09.73 X F52
2025-09-30 09:16:23 C 01 14 02.395 +29 59 16.89 X F52
2025-10-01 21:04:50 C 01 11 43.901 +30 14 31.27 W O18
2025-10-01 21:06:07 C 01 11 43.814 +30 14 31.84 W O18
2025-10-01 21:26:35 C 01 11 42.421 +30 14 40.09 W O18
2025-10-13 05:49:46 C 00 49 18.958 +31 48 43.05 U I41
2025-10-13 06:54:38 C 00 49 12.210 +31 48 57.95 U I41
2025-10-13 07:21:16 C 00 49 09.466 +31 49 04.44 U I41
2025-10-13 07:21:57 C 00 49 09.371 +31 49 04.94 U I41
2025-10-15 06:32:58 C 00 44 25.006 +31 59 51.82 X F51
2025-10-15 06:49:42 C 00 44 23.228 +31 59 55.57 X F51
2025-10-15 07:06:29 C 00 44 21.432 +31 59 59.34 X F51
2025-10-15 08:42:53 C 00 44 11.074 +32 00 20.39 V F51
2025-10-15 08:44:04 C 00 44 10.935 +32 00 20.68 V F51
2025-10-15 18:02:24 B 00 43 13.445 +32 02 03.95 X 126
2025-10-15 18:25:55 B 00 43 10.945 +32 02 08.55 X 126
2025-10-15 18:49:07 C 00 43 08.539 +32 02 13.99 W B74
2025-10-15 19:04:22 C 00 43 06.907 +32 02 17.34 W B74
2025-10-15 19:06:47 C 00 43 06.674 +32 02 17.45 W B74
2025-10-15 21:21:27 C 00 42 52.03 +32 02 44.8 V L01
2025-10-15 21:25:07 C 00 42 51.63 +32 02 45.8 V L01
2025-10-15 21:28:46 C 00 42 51.23 +32 02 46.4 V L01
2025-10-15 21:36:24 C 00 42 50.42 +32 02 47.9 V L01
2025-10-15 21:40:03 C 00 42 50.05 +32 02 48.9 V L01
2025-10-16 02:22:31 C 00 42 20.64 +32 03 43.3 X W62
2025-10-16 02:23:21 C 00 42 20.68 +32 03 43.4 V H21
2025-10-16 02:27:23 C 00 42 20.26 +32 03 43.9 V H21
2025-10-16 02:29:34 C 00 42 19.88 +32 03 44.7 X W62
2025-10-16 02:31:24 C 00 42 19.81 +32 03 44.9 V H21
2025-10-16 02:36:38 C 00 42 19.12 +32 03 46.2 X W62
2025-10-17 01:52:05 C 00 39 50.92 +32 07 51.9 V H21
2025-10-17 01:56:07 C 00 39 50.49 +32 07 52.6 V H21
2025-10-17 02:00:09 C 00 39 50.00 +32 07 53.4 V H21
2025-10-18 19:23:40 C 00 35 18.017 +32 13 48.90 X 033
2025-10-18 19:24:43 C 00 35 17.887 +32 13 48.90 X 033
2025-10-18 19:25:47 C 00 35 17.776 +32 13 49.30 X 033
2025-10-18 19:26:50 C 00 35 17.617 +32 13 49.30 X 033
2025-10-21 17:34:31 B 00 27 16.687 +32 19 52.73 X N56
2025-10-21 17:44:43 B 00 27 15.330 +32 19 53.98 X N56
2025-10-21 17:54:29 B 00 27 14.170 +32 19 54.78 X N56
2025-10-25 04:02:35 C 00 17 26.524 +32 19 50.63 V G96
2025-10-25 04:10:46 C 00 17 25.490 +32 19 50.30 V G96
2025-10-25 04:18:56 C 00 17 24.475 +32 19 49.87 V G96
2025-10-25 04:27:08 C 00 17 23.435 +32 19 49.51 V G96
2025-10-29 06:29:05 C 00 05 18.532 +32 09 26.16 X F51
2025-10-29 06:46:09 C 00 05 16.332 +32 09 23.58 X F51
2025-10-29 07:03:21 C 00 05 14.091 +32 09 20.88 X F51
2025-10-29 07:20:46 C 00 05 11.833 +32 09 18.07 X F51