2025 SX21

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5638999547 ± 6.52e-06
Semi-major axis (a)2.4431297298 AU ± 3.85e-05
Inclination (i)3.53311780° ± 3.32e-05
Long. of Asc. Node (Ω)328.94419114° ± 6.46e-05
Arg. of Perihelion (ω)98.52313301° ± 7.72e-05
Mean Anomaly (M)357.75477038° ± 5.51e-05
Mean Motion (n)0.2581026617°/day ± 6.10e-06
Perihelion dist (q)1.06544899 AU ± 2.32e-05
Aphelion dist (Q)3.82081047 AU ± 6.23e-05
Orbital Period3.81873738 yr ± 9.03e-05
Physical Parameters
H (abs. magnitude)23.66
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-03
RMS Residual0.249″
Uncertainty0
Orbit TypeAmor
MOID0.100124 AU
Observations Used63
Oppositions1
Arc Total2025-2026
First Observation Used2025-09-29
Last Observation Used2026-01-08
Observations (64)
Date Type RA Dec Mag Band Observatory
2025-12-12 10:44:53 C 06 38 25.930 +56 15 08.10 V I52
2025-12-14 12:46:36 C 06 55 59.726 +54 18 38.25 X F51
2025-12-14 13:48:57 C 06 56 17.517 +54 16 03.38 X F51
2025-12-14 14:07:47 C 06 56 22.944 +54 15 15.49 X F51
2025-12-19 07:01:30 C 07 25 23.610 +49 41 51.58 V G96
2025-12-19 07:09:00 C 07 25 24.953 +49 41 34.94 V G96
2025-12-19 07:16:30 C 07 25 26.260 +49 41 17.20 V G96
2025-12-19 07:24:00 C 07 25 27.667 +49 40 59.77 V G96
2025-12-21 10:58:26 C 07 34 52.389 +47 39 07.42 X F51
2025-12-21 11:16:09 C 07 34 54.847 +47 38 27.10 X F51
2025-12-21 11:33:54 C 07 34 57.245 +47 37 46.42 X F51
2025-12-21 11:51:37 C 07 34 59.659 +47 37 05.53 X F51
2026-01-08 16:48:19 C 08 07 49.987 +34 01 51.01 W O18
2026-01-08 17:46:06 C 08 07 50.700 +34 00 31.74 W O18