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
2025-09-29 08:30:50 C 00 30 41.699 +13 42 34.95 X F51
2025-09-29 08:46:23 C 00 30 41.465 +13 42 48.11 X F51
2025-09-29 09:01:59 C 00 30 41.221 +13 43 01.03 X F51
2025-09-29 12:05:44 C 00 30 38.399 +13 45 31.88 V F52
2025-09-29 12:06:53 C 00 30 38.389 +13 45 32.76 V F52
2025-09-29 23:33:29 C 00 30 33.898 +13 54 47.80 X 033
2025-09-29 23:38:43 C 00 30 33.818 +13 54 51.70 X 033
2025-09-29 23:43:55 C 00 30 33.808 +13 54 55.60 X 033
2025-09-30 13:38:09 C 00 30 25.985 +14 06 48.33 V T12
2025-09-30 13:41:29 C 00 30 25.947 +14 06 51.14 V T12
2025-09-30 13:44:41 C 00 30 25.902 +14 06 53.67 V T12
2025-10-18 06:00:32 C 00 27 27.090 +21 50 17.05 V G96
2025-10-18 06:08:35 C 00 27 26.953 +21 50 28.36 V G96
2025-10-18 06:16:40 C 00 27 26.888 +21 50 40.06 V G96
2025-10-18 06:24:43 C 00 27 26.809 +21 50 51.11 V G96
2025-10-18 06:38:16 C 00 27 26.608 +21 51 10.04 V I52
2025-10-18 06:42:56 C 00 27 26.554 +21 51 16.42 V I52
2025-10-18 06:47:39 C 00 27 26.564 +21 51 22.86 V I52
2025-10-18 06:52:23 C 00 27 26.521 +21 51 30.38 V I52
2025-10-24 06:35:06 C 00 28 17.281 +25 33 14.65 V I52
2025-10-24 06:43:04 C 00 28 17.317 +25 33 28.58 V I52
2025-10-24 06:51:01 C 00 28 17.288 +25 33 41.62 V I52
2025-10-24 06:58:59 C 00 28 17.288 +25 33 54.83 V I52
2025-10-26 04:30:59 C 00 29 05.766 +26 53 30.84 V G96
2025-10-26 04:39:08 C 00 29 05.867 +26 53 45.56 V G96
2025-10-26 04:47:16 C 00 29 05.849 +26 54 00.14 V G96
2025-10-26 04:55:26 C 00 29 05.899 +26 54 15.05 V G96
2025-10-29 02:57:31 C 00 30 58.864 +29 06 35.28 V I52
2025-10-29 03:02:47 C 00 30 58.928 +29 06 46.08 V I52
2025-10-29 03:05:13 C 00 30 59.004 +29 06 50.47 V I52
2025-10-29 03:09:10 C 00 30 59.087 +29 06 59.22 V I52
2025-10-29 06:38:32 C 00 31 05.865 +29 14 07.13 X F51
2025-10-29 06:55:39 C 00 31 06.168 +29 14 42.31 X F51
2025-10-29 07:12:58 C 00 31 06.459 +29 15 17.11 X F51
2025-11-08 08:04:10 C 00 47 09.992 +38 37 22.84 V I52
2025-11-08 08:06:00 C 00 47 10.183 +38 37 27.52 V I52
2025-11-08 08:07:51 C 00 47 10.345 +38 37 32.52 V I52
2025-11-11 05:24:15 C 00 56 05.507 +41 50 17.30 V G96
2025-11-11 05:32:31 C 00 56 06.497 +41 50 40.20 V G96
2025-11-11 05:40:46 C 00 56 07.548 +41 51 03.71 V G96
2025-11-11 05:49:02 C 00 56 08.578 +41 51 27.29 V G96
2025-11-27 04:50:30 C 03 04 40.948 +59 39 20.81 V I52
2025-11-27 04:55:15 C 03 04 43.690 +59 39 29.40 V I52
2025-11-27 04:58:23 C 03 04 45.455 +59 39 35.68 V I52
2025-11-28 10:22:04 C 03 22 24.812 +60 26 36.06 V I52
2025-11-28 10:30:26 C 03 22 29.867 +60 26 46.18 V I52
2025-11-28 10:52:32 C 03 22 43.255 +60 27 12.02 V I52
2025-12-12 10:22:00 C 06 38 17.848 +56 16 02.50 V I52
2025-12-12 10:30:20 C 06 38 20.760 +56 15 43.02 V I52
2025-12-12 10:44:22 C 06 38 25.793 +56 15 09.54 V I52