2021 RW99

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2993466494 ± 1.24e-06
Semi-major axis (a)1.2330972198 AU ± 1.44e-06
Inclination (i)5.85335098° ± 2.66e-05
Long. of Asc. Node (Ω)5.68332293° ± 2.95e-05
Arg. of Perihelion (ω)118.34922798° ± 2.60e-05
Mean Anomaly (M)290.97384421° ± 1.76e-03
Mean Motion (n)0.7198073854°/day ± 1.26e-06
Perihelion dist (q)0.86397370 AU ± 1.83e-06
Aphelion dist (Q)1.60222074 AU ± 2.42e-06
Orbital Period1.36929171 yr ± 2.39e-06
Physical Parameters
H (abs. magnitude)22.56
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.186″
Uncertainty1
Orbit TypeApollo
MOID0.006312 AU
Observations Used72
Oppositions1
Arc Total2021-2022
First Observation Used2021-09-09
Last Observation Used2022-05-30
Observations (75)
Date Type RA Dec Mag Band Observatory
2021-09-09 13:29:17 C 01 54 58.275 +09 35 15.67 U F51
2021-09-09 13:38:19 C 01 54 58.321 +09 35 19.64 U F51
2021-09-09 13:46:10 C 01 54 58.379 +09 35 23.38 U F51
2021-09-09 13:54:03 C 01 54 58.407 +09 35 26.89 U F51
2021-09-28 09:19:59 C 01 48 58.720 +13 35 15.45 U F52
2021-09-28 09:36:29 C 01 48 57.881 +13 35 26.15 U F52
2021-09-28 09:52:56 C 01 48 57.040 +13 35 36.65 U F52
2021-10-14 03:01:20 C 01 18 35.48 +18 18 09.4 V G96
2021-10-14 03:09:36 C 01 18 34.39 +18 18 17.1 V G96
2021-10-14 03:17:54 C 01 18 33.33 +18 18 24.8 V G96
2021-10-14 03:26:09 C 01 18 32.29 +18 18 32.1 V G96
2021-10-14 03:57:22 C 01 18 24.47 +18 18 51.5 V I93
2021-10-14 04:03:33 C 01 18 23.66 +18 18 56.8 V I93
2021-10-14 04:09:45 C 01 18 22.87 +18 19 01.9 V I93
2021-10-14 07:32:38 C 01 17 59.63 +18 22 14.8 V G96
2021-10-14 07:35:35 C 01 17 59.24 +18 22 17.4 V G96
2021-10-14 07:38:31 C 01 17 58.82 +18 22 20.0 V G96
2021-10-14 07:41:24 C 01 17 58.46 +18 22 22.3 V G96
2021-10-14 11:26:55 C 01 17 29.917 +18 25 49.99 U F52
2021-10-14 12:03:50 C 01 17 24.911 +18 26 21.80 U F52
2021-10-14 12:22:19 C 01 17 22.404 +18 26 37.65 U F52
2021-10-15 19:06:27 C 01 13 28.99 +18 53 51.9 Z C95
2021-10-15 19:34:35 C 01 13 25.17 +18 54 18.2 Z C95
2021-10-16 08:29:41 C 01 11 38.35 +19 06 16.1 V G96
2021-10-16 08:40:59 C 01 11 36.68 +19 06 26.3 V G96
2021-10-16 08:49:13 C 01 11 35.48 +19 06 33.7 V G96
2021-10-16 08:57:27 C 01 11 34.29 +19 06 41.0 V G96
2021-10-27 05:56:38 C 00 27 13.94 +23 22 18.7 V 703
2021-10-27 06:15:12 C 00 27 09.78 +23 22 39.2 V 703
2021-10-27 06:17:41 C 00 27 12.039 +23 22 49.14 U F52
2021-10-27 06:19:31 C 00 27 11.640 +23 22 51.08 U F52
2021-10-27 06:22:55 C 00 27 08.11 +23 22 46.2 V 703
2021-10-27 06:33:14 C 00 27 08.637 +23 23 05.59 U F52
2021-10-27 06:35:03 C 00 27 08.242 +23 23 07.52 U F52
2021-10-27 06:48:44 C 00 27 05.243 +23 23 21.97 U F52
2021-10-27 06:50:34 C 00 27 04.852 +23 23 23.82 U F52
2021-10-27 07:04:20 C 00 27 01.814 +23 23 38.26 U F52
2021-10-28 02:48:04 C 00 22 57.65 +23 43 20.6 V I52
2021-10-28 02:54:14 C 00 22 56.28 +23 43 26.8 V I52
2021-10-29 10:03:54 C 00 16 13.711 +24 15 02.79 U F51
2021-10-29 10:16:40 C 00 16 10.744 +24 15 15.05 U F51
2021-10-29 10:29:28 C 00 16 07.781 +24 15 27.13 U F51
2021-10-29 10:42:16 C 00 16 04.827 +24 15 39.19 U F51
2021-10-29 19:57:27 C 00 14 06.39 +24 24 33.3 V K88
2021-10-29 20:00:18 C 00 14 05.71 +24 24 36.1 V K88
2021-10-30 15:53:26 C 00 09 38.99 +24 44 37.4 V D29
2021-10-30 16:16:20 C 00 09 33.58 +24 44 59.5 V D29
2021-10-30 16:39:15 C 00 09 28.13 +24 45 20.3 V D29
2021-10-31 04:39:56 C 00 06 48.42 +24 57 21.0 V 703
2021-10-31 04:47:40 C 00 06 46.54 +24 57 28.7 V 703