IAA RAS IAA Minor Planet Database

2021 RZ9

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3185704000
Semi-major axis (a)1.0604329000 AU
Inclination (i)9.58067000°
Long. of Asc. Node (Ω)345.54825000°
Arg. of Perihelion (ω)254.07674000°
Mean Anomaly (M)13.74401000°
Mean Motion (n)0.9025666400°/day
Perihelion dist (q)0.72261040 AU
Aphelion dist (Q)1.39825540 AU
Orbital Period1.09200540 yr
Physical Parameters
H (abs. magnitude)26.24
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date—
RMS Residual0.710″
Uncertainty7
Orbit TypeApollo
MOID0.014772 AU
Observations Used18
Oppositions1
Arc Total—
First Observation Used—
Last Observation Used2021-09-12
Observations (18)
Date Type RA Dec Mag Band Observatory
2021-09-07 05:08:05 C 22 24 41.14 -19 25 12.3 – V 703
2021-09-07 05:16:19 C 22 24 37.37 -19 22 54.9 – V 703
2021-09-11 04:07:16 C 22 06 47.93 -04 23 48.2 – V G96
2021-09-11 04:14:51 C 22 06 46.94 -04 23 09.6 – V G96
2021-09-11 04:22:27 C 22 06 45.96 -04 22 30.8 – V G96
2021-09-11 04:30:01 C 22 06 44.96 -04 21 51.8 – V G96
2021-09-11 06:40:57 C 22 06 27.57 -04 10 45.3 – V G96
2021-09-11 06:41:33 C 22 06 27.51 -04 10 42.7 – V G96
2021-09-11 06:42:09 C 22 06 27.42 -04 10 39.2 – V G96
2021-09-11 20:40:16 C 22 05 20.06 -03 05 13.7 – V L01
2021-09-11 20:46:07 C 22 05 19.44 -03 04 48.7 – V L01
2021-09-11 20:51:51 C 22 05 18.86 -03 04 22.6 – V L01
2021-09-12 07:54:38 C 22 04 25.40 -02 17 47.5 – V 654
2021-09-12 08:06:01 C 22 04 29.845 -02 16 31.90 – U F52
2021-09-12 08:11:56 C 22 04 23.64 -02 16 38.6 – V 654
2021-09-12 08:22:45 C 22 04 28.036 -02 15 25.73 – U F52
2021-09-12 08:31:03 C 22 04 21.72 -02 15 22.6 – V 654
2021-09-12 08:48:21 C 22 04 20.02 -02 14 14.1 – V 654