IAA RAS IAA Minor Planet Database

2018 SR2

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5709612000
Semi-major axis (a)2.4436658000 AU
Inclination (i)1.97671000°
Long. of Asc. Node (Ω)301.09352000°
Arg. of Perihelion (ω)87.67401000°
Mean Anomaly (M)307.76496000°
Mean Motion (n)0.2580128600°/day
Perihelion dist (q)1.04842740 AU
Aphelion dist (Q)3.83890420 AU
Orbital Period3.81999430 yr
Physical Parameters
H (abs. magnitude)23.80
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date—
RMS Residual0.340″
Uncertainty2
Orbit TypeAmor
MOID0.062241 AU
Observations Used83
Oppositions1
Arc Total—
First Observation Used—
Last Observation Used2018-11-09
Observations (83)
Date Type RA Dec Mag Band Observatory
2018-09-29 08:37:32 C 21 49 39.034 +05 59 54.23 – U F52
2018-09-29 08:54:21 C 21 49 40.243 +06 00 34.32 – U F52
2018-09-29 09:11:13 C 21 49 41.453 +06 01 14.69 – U F52
2018-09-30 02:41:53 C 21 51 26.97 +06 43 42.3 – V G96
2018-09-30 02:49:53 C 21 51 27.64 +06 44 02.7 – V G96
2018-09-30 02:57:54 C 21 51 28.31 +06 44 22.4 – V G96
2018-09-30 03:05:56 C 21 51 28.95 +06 44 43.2 – V G96
2018-09-30 05:21:33 C 21 51 39.90 +06 50 24.4 – o 291
2018-09-30 05:27:52 C 21 51 40.40 +06 50 40.7 – o 291
2018-09-30 05:34:10 C 21 51 40.91 +06 50 56.3 – o 291
2018-09-30 20:51:56 C 21 53 17.21 +07 29 46.5 – V L01
2018-09-30 21:00:54 C 21 53 18.04 +07 30 09.7 – V L01
2018-10-02 02:59:38 C 21 56 43.62 +08 53 04.5 – u 807
2018-10-02 03:02:16 C 21 56 43.88 +08 53 11.7 – u 807
2018-10-02 03:04:53 C 21 56 44.15 +08 53 19.2 – u 807
2018-10-03 20:50:02 C 22 02 17.98 +10 54 49.0 – V 204
2018-10-03 21:19:30 C 22 02 21.68 +10 56 20.1 – V 204
2018-10-04 05:18:48 C 22 03 36.287 +11 22 02.83 – V T12
2018-10-04 05:20:21 C 22 03 36.485 +11 22 07.89 – V T12
2018-10-04 05:22:29 C 22 03 36.743 +11 22 14.80 – V T12
2018-10-04 05:23:24 C 22 03 36.854 +11 22 17.62 – V T12
2018-10-05 02:47:17 C 22 06 55.59 +12 31 40.8 – o 711
2018-10-05 02:50:56 C 22 06 56.67 +12 31 49.0 – V G96
2018-10-05 02:51:30 C 22 06 56.16 +12 31 54.8 – o 711
2018-10-05 02:55:45 C 22 06 56.76 +12 32 09.1 – o 711
2018-10-05 02:58:56 C 22 06 57.79 +12 32 15.9 – V G96
2018-10-05 03:06:55 C 22 06 58.90 +12 32 42.9 – V G96
2018-10-05 03:14:55 C 22 07 00.04 +12 33 09.9 – V G96
2018-10-05 08:01:36 C 22 07 44.454 +12 49 35.62 – V T12
2018-10-06 02:50:21 C 22 11 02.38 +13 54 13.7 – V I52
2018-10-06 02:51:27 C 22 11 02.48 +13 54 17.3 – V I52
2018-10-06 02:52:33 C 22 11 02.65 +13 54 21.7 – V I52
2018-10-06 04:07:35 C 22 11 12.14 +13 58 37.0 19.8 q H21
2018-10-06 04:18:36 C 22 11 13.88 +13 59 15.7 19.6 q H21
2018-10-06 04:29:37 C 22 11 15.60 +13 59 54.6 19.7 q H21
2018-10-08 03:21:36 C 22 20 35.70 +16 55 38.0 – o 711
2018-10-08 03:25:40 C 22 20 36.45 +16 55 53.5 – o 711
2018-10-08 03:29:36 C 22 20 37.22 +16 56 09.2 – o 711
2018-10-09 19:30:44 C 22 30 02.91 +19 40 16.2 – q A17
2018-10-09 19:45:34 C 22 30 06.32 +19 41 20.6 – q A17
2018-10-09 20:02:29 C 22 30 10.26 +19 42 33.0 – q A17
2018-10-11 04:41:01 C 22 39 08.626 +22 07 45.91 – V T12
2018-10-11 04:42:09 C 22 39 08.916 +22 07 51.27 – V T12
2018-10-12 20:47:17 C 22 51 40.16 +25 15 46.5 – o B67
2018-10-12 20:55:48 C 22 51 42.82 +25 16 27.9 – o B67
2018-10-12 21:04:18 C 22 51 45.41 +25 17 09.1 – o B67
2018-10-13 03:48:19 C 22 54 05.34 +25 50 11.6 – U H36
2018-10-13 03:54:59 C 22 54 07.46 +25 50 44.2 – U H36
2018-10-13 04:01:39 C 22 54 09.59 +25 51 16.4 – U H36
2018-10-15 19:36:52 C 23 19 24.05 +31 10 39.6 – q A17