2021 CF4

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.7395963082 ± 4.89e-05
Semi-major axis (a)1.5307181543 AU ± 1.54e-04
Inclination (i)6.67819373° ± 5.30e-04
Long. of Asc. Node (Ω)182.25568345° ± 7.05e-04
Arg. of Perihelion (ω)96.55752111° ± 1.61e-03
Mean Anomaly (M)146.44046872° ± 1.30e-01
Mean Motion (n)0.5204385123°/day ± 7.87e-05
Perihelion dist (q)0.39860466 AU ± 8.50e-05
Aphelion dist (Q)2.66283165 AU ± 2.79e-04
Orbital Period1.89383810 yr ± 2.87e-04
Physical Parameters
H (abs. magnitude)21.66
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.262″
Uncertainty3
Orbit TypeApollo
MOID0.034308 AU
Observations Used55
Oppositions1
Arc Total2021-2021
First Observation Used2021-02-07
Last Observation Used2021-03-14
Observations (55)
Date Type RA Dec Mag Band Observatory
2021-02-07 10:47:50 C 10 15 05.385 -02 31 51.55 V F52
2021-02-07 11:25:13 C 10 15 01.651 -02 31 46.55 V F52
2021-02-07 11:43:54 C 10 14 59.754 -02 31 44.40 V F52
2021-02-08 07:33:36 C 10 13 03.45 -02 29 13.3 V G96
2021-02-08 07:40:57 C 10 13 02.67 -02 29 12.4 V G96
2021-02-08 07:48:18 C 10 13 01.85 -02 29 11.7 V G96
2021-02-08 07:55:40 C 10 13 01.12 -02 29 10.6 V G96
2021-02-08 10:14:40 C 10 12 46.39 -02 28 50.4 V V06
2021-02-08 10:20:22 C 10 12 45.80 -02 28 49.7 V V06
2021-02-08 10:26:04 C 10 12 45.19 -02 28 49.1 V V06
2021-02-09 07:12:26 C 10 10 35.63 -02 25 33.4 V V06
2021-02-09 07:15:00 C 10 10 35.37 -02 25 33.0 V V06
2021-02-09 07:17:34 C 10 10 35.07 -02 25 32.5 V V06
2021-02-09 07:20:07 C 10 10 34.80 -02 25 32.1 V V06
2021-02-09 07:20:09 C 10 10 34.06 -02 25 12.4 u 807
2021-02-09 07:29:01 C 10 10 33.05 -02 25 10.5 u 807
2021-02-09 07:37:31 C 10 10 32.08 -02 25 09.1 u 807
2021-02-09 23:13:23 C 10 08 49.68 -02 22 45.8 V 033
2021-02-09 23:18:33 C 10 08 49.10 -02 22 44.8 V 033
2021-02-09 23:23:42 C 10 08 48.50 -02 22 43.5 V 033
2021-02-09 23:23:42 C 10 08 49.092 -02 22 37.34 V J04
2021-02-09 23:29:00 C 10 08 47.88 -02 22 42.4 V 033
2021-02-09 23:33:50 C 10 08 47.908 -02 22 35.57 V J04
2021-02-10 11:18:16 C 10 07 26.515 -02 20 13.66 U F51
2021-02-10 11:34:53 C 10 07 24.481 -02 20 10.18 U F51
2021-02-10 11:51:26 C 10 07 22.466 -02 20 06.69 U F51
2021-02-10 12:08:01 C 10 07 20.448 -02 20 03.24 U F51
2021-02-11 07:43:03 C 10 04 59.24 -02 15 25.8 u 807
2021-02-11 07:52:52 C 10 04 57.99 -02 15 23.6 u 807
2021-02-11 08:02:16 C 10 04 56.81 -02 15 21.4 u 807
2021-02-20 06:24:01 C 09 29 08.61 -00 45 06.5 V I52
2021-02-20 06:25:08 C 09 29 08.38 -00 45 05.5 V I52
2021-02-20 06:26:14 C 09 29 08.12 -00 45 04.8 V I52
2021-02-20 06:27:20 C 09 29 07.89 -00 45 04.0 V I52
2021-02-21 05:13:06 C 09 23 57.87 -00 29 37.1 u H21
2021-02-21 05:21:31 C 09 23 55.85 -00 29 30.9 u H21
2021-02-21 05:26:02 C 09 23 54.76 -00 29 27.7 u H21
2021-03-01 21:49:32 C 08 18 52.08 +03 06 04.4 V 204
2021-03-01 22:08:17 C 08 18 44.40 +03 06 30.8 V 204
2021-03-02 03:23:54 C 08 16 37.72 +03 13 58.8 V I52
2021-03-02 03:25:06 C 08 16 37.23 +03 14 00.5 V I52
2021-03-02 03:26:19 C 08 16 36.71 +03 14 02.3 V I52
2021-03-02 03:27:31 C 08 16 36.24 +03 14 04.1 V I52
2021-03-03 05:42:19 C 08 05 31.20 +03 52 11.1 V I52
2021-03-03 05:45:36 C 08 05 29.73 +03 52 15.1 V I52
2021-03-03 05:46:27 C 08 05 29.35 +03 52 16.7 V I52
2021-03-06 21:23:23 C 07 23 34.54 +06 13 52.9 V 033
2021-03-06 21:25:18 C 07 23 33.52 +06 13 56.5 V 033
2021-03-06 21:27:16 C 07 23 32.48 +06 13 59.9 V 033
2021-03-07 00:16:43 C 07 22 05.36 +06 19 49.4 u 807