IAA RAS IAA Minor Planet Database

2018 SA2

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5221476157 ± 1.63e-05
Semi-major axis (a)2.2304223254 AU ± 8.02e-05
Inclination (i)8.83089179° ± 1.68e-04
Long. of Asc. Node (Ω)331.50470810° ± 1.80e-04
Arg. of Perihelion (ω)11.34530574° ± 1.29e-04
Mean Anomaly (M)58.54885308° ± 4.22e-02
Mean Motion (n)0.2958909082°/day ± 1.60e-05
Perihelion dist (q)1.06581263 AU ± 5.29e-05
Aphelion dist (Q)3.39503202 AU ± 1.27e-04
Orbital Period3.33104619 yr ± 1.80e-04
Physical Parameters
H (abs. magnitude)22.70
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.255″
Uncertainty2
Orbit TypeAmor
MOID0.058063 AU
Observations Used54
Oppositions1
Arc Total2018-2018
First Observation Used2018-09-18
Last Observation Used2018-11-08
Observations (58)
Date Type RA Dec Mag Band Observatory
2018-09-18 08:02:24 C 20 42 07.89 +20 52 00.3 – U U68
2018-09-18 09:20:18 C 20 42 29.58 +20 58 23.6 – U U68
2018-09-22 04:54:07 C 21 09 08.32 +27 50 39.4 – U U68
2018-09-22 06:18:51 C 21 09 30.95 +27 56 14.8 – U U68
2018-09-24 23:07:40 C 21 27 59.38 +31 49 35.0 – V J95
2018-09-24 23:16:27 C 21 28 01.72 +31 50 03.4 – V J95
2018-09-25 18:53:23 C 21 33 34.97 +32 51 54.5 18.4 U B04
2018-09-25 19:05:26 C 21 33 38.09 +32 52 31.3 18.7 U B04
2018-09-25 20:26:18 C 21 33 59.22 +32 56 38.7 20.1 U B04
2018-09-25 20:49:59 C 21 34 05.38 +32 57 51.2 20.1 U B04
2018-09-25 21:13:06 C 21 34 12.03 +32 58 53.8 – V J95
2018-09-25 21:15:09 C 21 34 11.81 +32 59 02.0 – q A17
2018-09-25 21:30:11 C 21 34 16.44 +32 59 45.4 – V J95
2018-09-25 21:30:53 C 21 34 15.98 +32 59 49.5 – q A17
2018-09-25 21:47:51 C 21 34 21.15 +33 00 38.3 – V J95
2018-09-25 21:48:10 C 21 34 20.47 +33 00 40.6 – q A17
2018-09-25 22:00:47 C 21 34 23.35 +33 01 22.7 – V L01
2018-09-25 22:08:13 C 21 34 25.25 +33 01 45.0 – V L01
2018-09-25 22:15:31 C 21 34 27.20 +33 02 06.2 – V L01
2018-09-27 04:59:21 C 21 42 56.94 +34 30 08.5 – o 695
2018-09-27 05:03:06 C 21 42 57.89 +34 30 18.4 – o 695
2018-09-27 05:06:51 C 21 42 58.82 +34 30 28.7 – o 695
2018-09-27 22:05:52 C 21 47 34.48 +35 14 38.1 – V 204
2018-09-27 22:20:26 C 21 47 38.14 +35 15 14.3 – V 204
2018-10-05 04:32:59 C 22 31 26.12 +40 32 22.2 – o 711
2018-10-05 04:37:10 C 22 31 27.03 +40 32 27.2 – o 711
2018-10-05 04:41:22 C 22 31 27.90 +40 32 32.2 – o 711
2018-10-05 08:11:17 C 22 32 16.236 +40 36 51.86 – V T12
2018-10-05 08:13:56 C 22 32 16.797 +40 36 54.96 – V T12
2018-10-05 08:17:03 C 22 32 17.521 +40 36 57.80 – V F52
2018-10-05 08:35:05 C 22 32 21.288 +40 37 18.66 – V F52
2018-10-05 08:53:12 C 22 32 25.099 +40 37 39.57 – V F52
2018-10-06 02:54:16 C 22 36 34.85 +40 57 36.6 – V I52
2018-10-06 02:55:52 C 22 36 35.20 +40 57 38.2 – V I52
2018-10-06 02:57:28 C 22 36 35.52 +40 57 40.0 – V I52
2018-10-06 02:59:04 C 22 36 35.88 +40 57 42.0 – V I52
2018-10-06 04:38:40 C 22 36 55.06 +40 59 24.3 – q H21
2018-10-06 04:44:17 C 22 36 56.27 +40 59 30.5 19.9 q H21
2018-10-06 04:49:54 C 22 36 57.43 +40 59 36.0 20.2 q H21
2018-10-08 03:55:33 C 22 47 20.46 +41 43 41.8 – o 711
2018-10-08 04:00:33 C 22 47 21.44 +41 43 45.9 – o 711
2018-10-08 04:05:35 C 22 47 22.44 +41 43 49.9 – o 711
2018-10-17 08:05:12 C 23 29 02.393 +43 07 49.36 – U F52
2018-10-17 08:23:33 C 23 29 05.196 +43 07 50.28 – U F52
2018-10-17 08:41:48 C 23 29 07.932 +43 07 50.81 – U F52
2018-10-18 02:58:40 C 23 32 10.57 +43 07 57.0 – V I52
2018-10-18 03:02:13 C 23 32 11.12 +43 07 57.8 – V I52
2018-10-18 03:05:47 C 23 32 11.62 +43 07 58.4 – V I52
2018-10-18 03:08:10 C 23 32 11.95 +43 07 57.7 – V I52
2018-10-28 08:08:29 C 00 07 02.49 +42 13 48.7 – V V06