2021 SL28

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6072634000
Semi-major axis (a)2.5383562000 AU
Inclination (i)4.01703000°
Long. of Asc. Node (Ω)231.46609000°
Arg. of Perihelion (ω)192.21321000°
Mean Anomaly (M)356.34133000°
Mean Motion (n)0.2437110600°/day
Perihelion dist (q)0.99690540 AU
Aphelion dist (Q)4.07980700 AU
Orbital Period4.04416480 yr
Physical Parameters
H (abs. magnitude)24.90
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.970″
Uncertainty6
Orbit TypeApollo
MOID0.012040 AU
Observations Used25
Oppositions1
Arc Total
First Observation Used
Last Observation Used2021-10-29
Observations (26)
Date Type RA Dec Mag Band Observatory
2021-09-28 08:14:47 C 00 34 01.120 +21 21 13.92 U F52
2021-09-28 08:33:09 C 00 34 02.340 +21 21 33.51 U F52
2021-09-28 08:51:28 C 00 34 03.564 +21 21 52.99 U F52
2021-09-30 12:18:36 C 00 38 17.857 +22 16 55.05 V F51
2021-09-30 12:35:26 C 00 38 19.163 +22 17 13.44 V F51
2021-09-30 12:52:08 C 00 38 20.475 +22 17 31.22 V F51
2021-09-30 13:08:53 C 00 38 21.827 +22 17 49.38 V F51
2021-10-03 08:06:31 C 00 45 05.320 +23 36 44.46 V F52
2021-10-03 08:22:04 C 00 45 06.828 +23 37 04.42 V F52
2021-10-05 07:49:00 C 00 50 47.373 +24 38 49.41 V F52
2021-10-05 08:05:38 C 00 50 49.288 +24 39 12.86 V F52
2021-10-07 12:05:08 C 00 58 07.969 +25 53 30.91 V F51
2021-10-07 13:12:20 C 00 58 17.407 +25 55 08.55 V F51
2021-10-11 12:55:23 C 01 16 18.829 +28 33 49.43 V F51
2021-10-11 13:11:56 C 01 16 22.330 +28 34 18.15 V F51
2021-10-17 06:46:06 C 01 58 55.80 +33 18 30.1 V G96
2021-10-17 06:54:22 C 01 58 59.02 +33 18 49.5 V G96
2021-10-17 07:02:38 C 01 59 02.25 +33 19 08.1 V G96
2021-10-17 07:10:53 C 01 59 05.43 +33 19 27.2 V G96
2021-10-17 09:23:05 C 01 59 57.15 +33 24 25.1 V G96
2021-10-17 09:26:40 C 01 59 58.56 +33 24 32.9 V G96
2021-10-17 09:30:15 C 01 59 59.97 +33 24 40.9 V G96
2021-10-29 09:18:01 C 05 42 08.66 +37 38 49.6 V I52
2021-10-29 09:18:37 C 05 42 09.23 +37 38 48.3 V I52
2021-10-29 09:19:14 C 05 42 09.77 +37 38 45.2 V I52
2021-10-29 09:19:50 C 05 42 10.37 +37 38 43.5 V I52