IAA RAS IAA Minor Planet Database

2021 KR1

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4586099375
Semi-major axis (a)1.8088483035 AU
Inclination (i)4.34231544°
Long. of Asc. Node (Ω)231.94627040° ± 5.00e+00
Arg. of Perihelion (ω)334.64968477° ± 6.00e+00
Mean Anomaly (M)319.22497995°
Mean Motion (n)0.4051925800°/day
Perihelion dist (q)0.97795870 AU
Aphelion dist (Q)2.63940130 AU
Orbital Period2.43244260 yr
Physical Parameters
H (abs. magnitude)27.63
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-18
RMS Residual0.631″
Uncertainty—
Orbit TypeApollo
MOID0.000567 AU
Observations Used20
Oppositions1
Arc Total—
First Observation Used—
Last Observation Used2021-05-23
Observations (20)
Date Type RA Dec Mag Band Observatory
2021-05-20 07:59:20 C 17 03 50.13 +04 41 53.9 – V G96
2021-05-20 08:06:43 C 17 03 55.61 +04 41 23.8 – V G96
2021-05-20 08:14:05 C 17 04 00.98 +04 40 51.9 – V G96
2021-05-20 08:21:28 C 17 04 06.30 +04 40 20.6 – V G96
2021-05-20 09:10:14 C 17 04 40.29 +04 36 45.6 – V H01
2021-05-20 09:10:33 C 17 04 41.79 +04 36 53.5 – V I52
2021-05-20 09:11:58 C 17 04 42.83 +04 36 48.2 – V I52
2021-05-20 09:13:23 C 17 04 43.83 +04 36 42.1 – V I52
2021-05-20 09:16:43 C 17 04 44.98 +04 36 18.4 – V H01
2021-05-20 09:30:19 C 17 04 54.78 +04 35 21.2 – V H01
2021-05-20 09:40:08 C 17 05 01.84 +04 34 40.1 – V H01
2021-05-20 12:55:26 C 17 07 35.235 +04 22 49.54 – U F51
2021-05-20 13:28:20 C 17 07 57.273 +04 20 37.74 – U F51
2021-05-20 23:44:04 C 17 15 24.74 +03 40 44.8 – V L01
2021-05-20 23:53:10 C 17 15 30.04 +03 40 14.7 – V L01
2021-05-20 23:57:39 C 17 15 32.60 +03 39 59.5 – V L01
2021-05-23 07:18:13 C 17 41 00.42 +01 24 05.4 – V V06
2021-05-23 07:24:01 C 17 41 01.93 +01 23 54.9 – V V06
2021-05-23 07:29:49 C 17 41 03.46 +01 23 44.7 – V V06
2021-05-23 07:35:36 C 17 41 05.00 +01 23 34.2 – V V06