2021 XB1

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4840995295 ± 9.87e-06
Semi-major axis (a)1.6639244630 AU ± 2.40e-05
Inclination (i)8.20133640° ± 2.14e-04
Long. of Asc. Node (Ω)357.94403237° ± 6.95e-04
Arg. of Perihelion (ω)27.48835121° ± 3.24e-04
Mean Anomaly (M)325.30841357° ± 1.47e-02
Mean Motion (n)0.4592105594°/day ± 9.92e-06
Perihelion dist (q)0.85841941 AU ± 2.06e-05
Aphelion dist (Q)2.46942951 AU ± 3.92e-05
Orbital Period2.14634934 yr ± 4.64e-05
Physical Parameters
H (abs. magnitude)21.89
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.220″
Uncertainty2
Orbit TypeApollo
MOID0.066565 AU
Observations Used50
Oppositions1
Arc Total2021-2022
First Observation Used2021-12-01
Last Observation Used2022-02-08
Observations (51)
Date Type RA Dec Mag Band Observatory
2021-12-01 12:13:02 C 11 57 26.87 +36 28 47.6 V G96
2021-12-01 12:20:30 C 11 57 26.15 +36 28 49.7 V G96
2021-12-01 12:27:58 C 11 57 25.43 +36 28 52.2 V G96
2021-12-01 13:00:05 C 11 57 22.36 +36 29 03.0 V G96
2021-12-01 13:00:51 C 11 57 22.24 +36 29 03.6 V G96
2021-12-01 13:01:37 C 11 57 22.18 +36 29 04.0 V G96
2021-12-01 13:03:21 C 11 57 22.02 +36 29 04.6 V G96
2021-12-01 13:04:09 C 11 57 21.91 +36 29 04.6 V G96
2021-12-01 13:04:55 C 11 57 21.85 +36 29 04.7 V G96
2021-12-02 12:10:41 C 11 55 22.11 +36 35 56.0 V V06
2021-12-02 12:12:53 C 11 55 21.89 +36 35 56.7 V V06
2021-12-02 12:15:04 C 11 55 21.69 +36 35 57.6 V V06
2021-12-02 12:17:14 C 11 55 21.49 +36 35 58.0 V V06
2021-12-03 03:08:47 C 11 54 04.55 +36 40 08.5 V 033
2021-12-03 03:13:57 C 11 54 04.05 +36 40 10.7 V 033
2021-12-03 03:19:07 C 11 54 03.59 +36 40 12.5 V 033
2021-12-03 11:32:27 C 11 53 21.50 +36 42 46.0 V I52
2021-12-03 11:39:23 C 11 53 20.86 +36 42 48.1 V I52
2021-12-03 11:46:59 C 11 53 20.15 +36 42 50.5 V I52
2021-12-03 11:50:04 C 11 53 19.90 +36 42 51.3 V I52
2021-12-18 09:32:02 C 11 20 21.99 +38 26 02.6 V 695
2021-12-18 09:40:28 C 11 20 21.08 +38 26 05.5 V 695
2021-12-18 09:48:55 C 11 20 20.12 +38 26 08.2 V 695
2022-01-01 02:55:12 C 10 39 39.22 +39 49 08.6 V 204
2022-01-01 03:27:44 C 10 39 34.33 +39 49 13.8 V 204
2022-01-01 04:00:16 C 10 39 29.53 +39 49 19.4 V 204
2022-01-03 03:11:45 C 10 32 40.11 +39 56 31.2 V 033
2022-01-03 03:16:30 C 10 32 39.46 +39 56 31.8 V 033
2022-01-03 03:21:14 C 10 32 38.66 +39 56 32.4 V 033
2022-01-03 10:25:35 C 10 31 36.69 +39 57 35.1 V V06
2022-01-03 10:27:10 C 10 31 36.42 +39 57 35.5 V V06
2022-01-03 10:28:45 C 10 31 36.22 +39 57 35.9 V V06
2022-01-03 10:30:20 C 10 31 35.97 +39 57 35.6 V V06
2022-01-10 06:40:37 C 10 06 34.00 +40 04 09.1 V I52
2022-01-10 06:43:51 C 10 06 33.47 +40 04 08.3 V I52
2022-01-10 06:47:05 C 10 06 32.99 +40 04 09.6 V I52
2022-01-10 06:50:19 C 10 06 32.45 +40 04 09.9 V I52
2022-01-25 12:51:18 C 09 12 32.827 +38 24 03.33 U F52
2022-01-25 13:24:25 C 09 12 28.327 +38 23 47.09 U F52
2022-01-25 13:41:00 C 09 12 26.081 +38 23 38.61 U F52
2022-01-31 07:54:02 C 08 55 57.71 +37 11 24.1 V G96
2022-01-31 08:02:12 C 08 55 56.82 +37 11 20.0 V G96
2022-01-31 08:10:19 C 08 55 55.88 +37 11 14.1 V G96
2022-01-31 08:18:25 C 08 55 54.97 +37 11 10.6 V G96
2022-02-08 07:52:43 C 08 38 14.842 +35 15 30.57 U F52
2022-02-08 07:53:38 C 08 38 14.744 +35 15 30.07 U F52
2022-02-08 08:09:14 C 08 38 13.500 +35 15 20.66 U F52
2022-02-08 08:10:08 C 08 38 13.417 +35 15 19.93 U F52
2022-02-08 08:25:45 C 08 38 12.176 +35 15 10.46 U F52
2022-02-08 08:42:19 C 08 38 10.804 +35 15 00.42 U F52