2021 SX4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5303844000
Semi-major axis (a)2.2098748000 AU
Inclination (i)3.10614000°
Long. of Asc. Node (Ω)191.27338000°
Arg. of Perihelion (ω)176.29376000°
Mean Anomaly (M)93.07449000°
Mean Motion (n)0.3000216400°/day
Perihelion dist (q)1.03779170 AU
Aphelion dist (Q)3.38195790 AU
Orbital Period3.28512200 yr
Physical Parameters
H (abs. magnitude)25.81
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.710″
Uncertainty6
Orbit TypeAmor
MOID0.034822 AU
Observations Used38
Oppositions1
Arc Total
First Observation Used
Last Observation Used2021-10-28
Observations (42)
Date Type RA Dec Mag Band Observatory
2021-09-28 07:05:04 C 21 21 59.892 -05 51 17.70 U F51
2021-09-28 07:23:19 C 21 22 09.550 -05 51 07.32 U F51
2021-09-28 07:59:51 C 21 22 29.011 -05 50 45.97 U F51
2021-10-04 08:46:46 C 23 12 00.646 -03 23 40.76 U F52
2021-10-04 09:03:13 C 23 12 14.597 -03 23 16.19 U F52
2021-10-04 09:19:38 C 23 12 28.512 -03 22 51.71 U F52
2021-10-04 09:36:04 C 23 12 42.504 -03 22 27.03 U F52
2021-10-04 11:44:43 C 23 14 32.752 -03 19 11.69 V F51
2021-10-04 11:45:38 C 23 14 33.572 -03 19 10.21 V F51
2021-10-04 18:46:21 C 23 21 12.54 -03 09 56.5 V G02
2021-10-04 18:53:06 C 23 21 18.52 -03 09 45.4 V G02
2021-10-04 18:59:54 C 23 21 24.53 -03 09 35.3 V G02
2021-10-04 19:42:40 C 23 22 03.31 -03 08 21.5 X 595
2021-10-04 19:52:17 C 23 22 11.73 -03 08 07.8 X 595
2021-10-04 20:01:07 C 23 22 21.70 -03 07 42.4 V B49
2021-10-04 20:02:34 C 23 22 22.99 -03 07 39.8 V B49
2021-10-04 20:29:00 C 23 22 43.97 -03 07 10.1 X 595
2021-10-04 20:47:50 C 23 23 00.50 -03 06 42.4 X 595
2021-10-04 20:56:34 C 23 23 08.19 -03 06 28.0 X 595
2021-10-05 18:18:33 C 23 42 48.76 -02 31 46.4 V N51
2021-10-05 18:27:17 C 23 42 56.50 -02 31 31.7 V N51
2021-10-05 22:22:55 C 23 46 48.86 -02 21 53.4 X Y00
2021-10-05 22:46:45 C 23 47 10.08 -02 21 14.3 X Y00
2021-10-05 23:10:35 C 23 47 31.09 -02 20 36.5 X Y00
2021-10-06 06:58:24 C 23 54 44.835 -02 10 08.76 U F51
2021-10-06 07:15:12 C 23 54 59.589 -02 09 40.99 U F51
2021-10-06 07:48:49 C 23 55 29.010 -02 08 45.26 U F51
2021-10-09 22:15:38 C 01 11 19.82 +00 13 14.0 V A17
2021-10-09 22:27:40 C 01 11 28.94 +00 13 33.0 V A17
2021-10-09 22:39:39 C 01 11 38.12 +00 13 51.6 V A17
2021-10-10 08:19:10 C 01 19 09.22 +00 29 23.6 V G96
2021-10-10 08:26:40 C 01 19 14.68 +00 29 35.0 V G96
2021-10-10 08:34:08 C 01 19 20.09 +00 29 46.6 V G96
2021-10-10 08:41:36 C 01 19 25.55 +00 29 57.4 V G96
2021-10-12 14:18:10 C 01 57 21.86 +01 43 44.1 V D29
2021-10-12 14:38:32 C 01 57 33.91 +01 44 09.5 V D29
2021-10-13 10:56:26 C 02 09 51.388 +02 08 47.37 U F51
2021-10-13 11:13:12 C 02 10 00.397 +02 09 06.31 U F51
2021-10-13 11:29:57 C 02 10 09.368 +02 09 25.20 U F51
2021-10-28 08:37:05 C 03 54 56.41 +05 39 42.7 V V00
2021-10-28 08:44:04 C 03 54 57.13 +05 39 45.1 V V00
2021-10-28 08:58:05 C 03 54 58.56 +05 39 49.6 V V00