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
2025-10-31 05:19:06 C 23 59 28.536 +32 00 26.93 X F51
2025-10-31 05:35:50 C 23 59 26.387 +32 00 23.71 X F51
2025-10-31 06:09:19 C 23 59 22.037 +32 00 17.09 X F51
2025-11-01 02:15:21 C 23 56 51.35 +31 55 33.6 V H21
2025-11-01 02:16:45 C 23 56 51.19 +31 55 33.2 V H21
2025-11-01 02:19:32 C 23 56 50.83 +31 55 32.6 V H21
2025-11-01 02:22:18 C 23 56 50.47 +31 55 31.6 V H21
2025-11-01 02:25:05 C 23 56 50.10 +31 55 30.9 V H21
2025-11-08 19:25:31 B 23 34 13.45 +30 52 17.5 X 595
2025-11-08 19:38:37 B 23 34 11.84 +30 52 11.7 X 595
2025-11-08 19:51:42 B 23 34 10.28 +30 52 06.2 X 595
2025-11-13 04:20:59 C 23 22 11.496 +30 02 14.24 V G96
2025-11-13 04:29:10 C 23 22 10.535 +30 02 10.00 V G96
2025-11-13 04:37:24 C 23 22 09.584 +30 02 05.60 V G96
2025-11-13 04:45:37 C 23 22 08.630 +30 02 01.25 V G96
2025-11-25 01:55:36 C 22 54 20.884 +27 13 40.55 V G96
2025-11-25 02:03:59 C 22 54 20.120 +27 13 35.15 V G96
2025-11-25 02:12:17 C 22 54 19.393 +27 13 29.96 V G96
2025-11-25 02:20:36 C 22 54 18.637 +27 13 24.49 V G96
2025-11-29 04:04:49 C 22 46 32.336 +26 10 31.04 V G96
2025-11-29 04:14:02 C 22 46 31.602 +26 10 24.78 V G96
2025-11-29 04:23:15 C 22 46 30.864 +26 10 18.55 V G96
2025-11-29 04:32:28 C 22 46 30.140 +26 10 12.40 V G96
2025-12-03 05:07:53 C 22 39 35.726 +25 07 12.70 X F52
2025-12-03 05:18:51 C 22 39 34.903 +25 07 05.35 X F52
2025-12-03 05:40:29 C 22 39 33.281 +25 06 50.79 X F52
2025-12-08 06:54:10 C 22 31 37.699 +23 45 53.83 X F51
2025-12-08 07:02:27 C 22 31 37.138 +23 45 47.88 X F52
2025-12-08 07:03:35 C 22 31 37.057 +23 45 47.09 X F51
2025-12-08 07:12:05 C 22 31 36.483 +23 45 41.06 X F52
2025-12-08 07:12:59 C 22 31 36.427 +23 45 40.31 X F51
2025-12-08 07:21:45 C 22 31 35.833 +23 45 34.15 X F52
2025-12-08 07:22:25 C 22 31 35.785 +23 45 33.73 X F51
2025-12-08 07:31:41 C 22 31 35.168 +23 45 27.02 X F52
2025-12-09 02:26:11 C 22 30 24.826 +23 32 31.34 V G96
2025-12-09 02:34:16 C 22 30 24.271 +23 32 25.69 V G96
2025-12-09 02:42:22 C 22 30 23.728 +23 32 20.11 V G96
2025-12-09 02:50:27 C 22 30 23.188 +23 32 14.46 V G96
2025-12-10 10:46:24 C 22 28 24.49 +23 10 12.4 V D29
2025-12-10 11:06:46 C 22 28 23.10 +23 09 58.0 V D29
2025-12-10 11:27:08 C 22 28 21.73 +23 09 43.1 V D29
2025-12-21 10:25:39 C 22 11 20.95 +19 44 29.4 V D29
2025-12-21 10:45:59 C 22 11 19.32 +19 44 10.4 V D29
2025-12-21 11:06:20 C 22 11 17.77 +19 43 51.4 V D29
2025-12-28 05:22:57 C 21 57 31.449 +16 48 50.78 X F51
2025-12-28 05:36:59 C 21 57 29.957 +16 48 32.20 X F51
2025-12-28 05:51:04 C 21 57 28.480 +16 48 13.64 X F51
2025-12-28 06:05:08 C 21 57 27.017 +16 47 55.13 X F51