2019 RB4

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.7240548617 ± 7.97e-08
Semi-major axis (a)1.2976445468 AU ± 1.17e-08
Inclination (i)25.76445584° ± 1.26e-05
Long. of Asc. Node (Ω)195.58902782° ± 1.18e-05
Arg. of Perihelion (ω)1.45731681° ± 2.86e-05
Mean Anomaly (M)166.60886898° ± 7.81e-05
Mean Motion (n)0.6667740007°/day ± 9.05e-09
Perihelion dist (q)0.35807870 AU ± 1.03e-07
Aphelion dist (Q)2.23721039 AU ± 1.05e-07
Orbital Period1.47820143 yr ± 2.01e-08
Physical Parameters
H (abs. magnitude)19.90
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.216″
Uncertainty0
Orbit TypeApollo
MOID0.369825 AU
Observations Used67
Oppositions4
Arc Total2012-2025
First Observation Used2012-10-17
Last Observation Used2025-10-12
Observations (76)
Date Type RA Dec Mag Band Observatory
2022-08-23 08:50:34 C 01 00 23.04 +22 39 36.6 u H21
2022-08-23 08:58:55 C 01 00 22.54 +22 39 33.0 u H21
2022-08-24 07:31:34 C 00 59 00.52 +22 29 03.0 u H21
2022-08-24 07:40:19 C 00 58 59.96 +22 28 59.0 u H21
2022-08-24 07:47:50 C 00 58 59.46 +22 28 55.5 u H21
2022-09-21 06:34:36 C 00 05 22.83 +13 57 11.3 u H21
2022-09-21 06:48:42 C 00 05 21.58 +13 56 57.4 u H21
2022-09-22 08:56:19 C 00 03 06.873 +13 31 06.25 U F52
2022-09-22 09:12:11 C 00 03 05.483 +13 30 50.48 U F52
2022-09-22 09:28:00 C 00 03 04.108 +13 30 34.88 U F52
2024-11-02 07:59:30 C 02 50 42.209 -08 01 34.39 V G96
2024-11-02 08:22:35 C 02 50 39.880 -08 02 01.54 V G96
2024-11-02 08:30:02 C 02 50 39.127 -08 02 10.28 V G96
2024-11-02 08:37:28 C 02 50 38.404 -08 02 19.68 V G96
2025-09-15 09:08:08 C 00 38 32.653 +15 14 23.96 X F52
2025-09-15 09:22:54 C 00 38 31.461 +15 14 12.06 X F52
2025-09-15 09:37:42 C 00 38 30.203 +15 14 00.16 X F52
2025-09-15 09:52:33 C 00 38 28.958 +15 13 48.34 X F52
2025-09-29 05:18:16 C 00 11 15.77 +10 20 02.3 V H21
2025-09-29 05:26:35 C 00 11 15.10 +10 19 54.7 V H21
2025-09-29 08:18:04 C 00 11 01.590 +10 17 17.51 X F51
2025-09-29 08:33:37 C 00 11 00.310 +10 17 02.88 X F51
2025-09-29 08:49:12 C 00 10 59.027 +10 16 48.77 X F51
2025-09-29 09:05:05 C 00 10 57.736 +10 16 33.65 X F51
2025-10-12 13:14:50 C 23 47 59.122 +05 30 08.81 W O18
2025-10-12 14:16:12 C 23 47 55.131 +05 29 16.51 W O18