IAA RAS IAA Minor Planet Database

354030 (2001 RB18)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5389012936 ± 1.02e-09
Semi-major axis (a)2.3488749058 AU ± 2.81e-10
Inclination (i)4.17829459° ± 6.19e-07
Long. of Asc. Node (Ω)198.24942951° ± 3.86e-06
Arg. of Perihelion (ω)175.35074491° ± 4.31e-06
Mean Anomaly (M)253.13460727° ± 7.78e-07
Mean Motion (n)0.2737930653°/day ± 4.91e-11
Perihelion dist (q)1.08306318 AU ± 2.40e-09
Aphelion dist (Q)3.61468663 AU ± 2.44e-09
Orbital Period3.59989499 yr ± 6.46e-10
Physical Parameters
H (abs. magnitude)18.61
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.238″
Uncertainty0
Orbit TypeAmor
MOID0.081944 AU
Observations Used1245
Radar Obs Used3
Oppositions13
Arc Total2001-2019
First Observation Used2001-07-13
Last Observation Used2024-02-14
Observations (1342)
Date Type RA Dec Mag Band Observatory
2019-09-17 23:42:57 C 23 56 05.59 +18 34 05.6 – V K87
2019-09-17 23:48:05 C 23 56 07.22 +18 34 10.0 – V K87
2019-09-17 23:53:56 C 23 56 09.07 +18 34 14.9 – V K87
2019-09-18 03:04:07 C 23 57 09.61 +18 36 55.1 – q B88
2019-09-18 09:06:33 C 23 59 12.77 +18 42 20.7 – V 703
2019-09-18 09:14:10 C 23 59 15.18 +18 42 26.7 – V 703
2019-09-18 09:21:46 C 23 59 17.60 +18 42 32.6 – V 703
2019-09-18 09:29:21 C 23 59 20.02 +18 42 38.4 – V 703
2019-09-19 02:11:50 C 00 05 08.89 +18 55 50.7 – q I15
2019-09-19 02:13:00 C 00 05 09.28 +18 55 51.9 – q I15
2019-09-19 02:14:10 C 00 05 09.66 +18 55 52.7 – q I15
2019-09-19 08:27:07 C 00 07 15.61 +19 01 00.0 – V 703
2019-09-19 08:34:52 C 00 07 18.15 +19 01 05.8 – V 703
2019-09-19 08:42:32 C 00 07 20.68 +19 01 11.5 – V 703
2019-09-19 08:50:15 C 00 07 23.21 +19 01 17.2 – V 703
2019-09-19 12:27:54 C 00 08 38.733 +19 04 18.60 – V F51
2019-09-19 13:01:19 C 00 08 49.788 +19 04 41.88 – V F51
2019-09-19 13:10:50 C 00 08 52.87 +19 04 49.9 – V T08
2019-09-19 13:15:29 C 00 08 54.42 +19 04 53.0 – V T08
2019-09-19 13:18:07 C 00 08 55.371 +19 04 53.32 – V F51
2019-09-19 13:23:26 C 00 08 57.07 +19 04 58.5 – V T08
2019-09-19 13:38:54 C 00 09 02.24 +19 05 08.8 – V T08
2019-09-20 02:24:20 C 00 13 42.02 +19 13 59.8 – q I15
2019-09-20 02:26:30 C 00 13 42.78 +19 14 01.5 – q I15
2019-09-20 02:28:39 C 00 13 43.52 +19 14 03.1 – q I15
2019-09-20 18:47:28 C 00 19 40.30 +19 24 52.5 – q C23
2019-09-20 18:52:37 C 00 19 42.19 +19 24 56.5 – q C23
2019-09-20 18:57:59 C 00 19 44.17 +19 25 00.5 – q C23
2019-09-20 19:24:04 C 00 19 53.60 +19 25 19.8 – q C23
2019-09-20 19:29:13 C 00 19 55.46 +19 25 23.5 – q C23
2019-09-20 19:34:07 C 00 19 57.22 +19 25 27.1 – q C23
2019-09-20 20:18:50 C 00 20 13.15 +19 25 59.6 – q G33
2019-09-20 20:19:42 C 00 20 13.48 +19 26 00.1 – q G33
2019-09-20 20:22:25 C 00 20 14.43 +19 26 02.2 – q G33
2019-09-20 20:23:19 C 00 20 14.74 +19 26 02.8 – q G33
2019-09-20 20:24:08 C 00 20 15.05 +19 26 03.3 – q G33
2019-09-20 20:25:14 C 00 20 15.42 +19 26 04.4 – q G33
2019-09-20 20:26:12 C 00 20 15.76 +19 26 05.0 – q G33
2019-09-20 20:27:02 C 00 20 16.07 +19 26 05.4 – q G33
2019-09-20 20:30:05 C 00 20 17.18 +19 26 07.6 – q G33
2019-09-20 20:31:01 C 00 20 17.51 +19 26 08.4 – q G33
2019-09-20 20:33:17 C 00 20 18.31 +19 26 10.3 – q G33
2019-09-20 20:34:10 C 00 20 18.62 +19 26 10.8 – q G33
2019-09-20 20:35:03 C 00 20 18.94 +19 26 11.4 – q G33
2019-09-20 20:37:19 C 00 20 19.76 +19 26 13.4 – q G33
2019-09-20 20:38:06 C 00 20 20.03 +19 26 13.6 – q G33
2019-09-20 20:39:04 C 00 20 20.37 +19 26 14.6 – q G33
2019-09-20 21:49:14 C 00 20 45.53 +19 27 03.5 – q C23
2019-09-20 21:51:55 C 00 20 46.47 +19 27 05.7 – q C23
2019-09-21 20:11:15 C 00 29 08.40 +19 40 36.1 – q G33
Radar Observations (3)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2019-09-27 05:45:00 92725178.62 4 us 2380 -1 -1
2019-09-27 05:56:00 92722930.43 4 us 2380 -1 -1
2019-09-28 06:30:00 92496216.2 1 us 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)