2021 JF9

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4461988078 ± 2.26e-06
Semi-major axis (a)2.0308268952 AU ± 9.54e-06
Inclination (i)5.75601713° ± 2.14e-05
Long. of Asc. Node (Ω)203.22798177° ± 3.87e-05
Arg. of Perihelion (ω)101.38738539° ± 5.28e-05
Mean Anomaly (M)176.85009649° ± 3.75e-03
Mean Motion (n)0.3405672768°/day ± 2.40e-06
Perihelion dist (q)1.12467436 AU ± 7.00e-06
Aphelion dist (Q)2.93697943 AU ± 1.45e-05
Orbital Period2.89407219 yr ± 2.04e-05
Physical Parameters
H (abs. magnitude)22.83
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.206″
Uncertainty1
Orbit TypeAmor
MOID0.150171 AU
Observations Used68
Oppositions1
Arc Total2021-2021
First Observation Used2021-05-12
Last Observation Used2021-09-08
Observations (68)
Date Type RA Dec Mag Band Observatory
2021-05-12 11:58:38 C 16 58 58.842 -11 11 19.85 U F51
2021-05-12 12:15:55 C 16 58 59.339 -11 11 05.27 U F51
2021-05-12 12:50:26 C 16 59 00.370 -11 10 35.83 U F51
2021-05-13 09:54:37 C 16 59 46.267 -10 52 27.64 V 568
2021-05-13 09:56:22 C 16 59 46.319 -10 52 26.12 V 568
2021-05-13 09:58:07 C 16 59 46.372 -10 52 24.65 V 568
2021-05-14 07:32:39 C 17 00 30.99 -10 33 31.3 u H21
2021-05-14 07:41:24 C 17 00 31.24 -10 33 23.4 u H21
2021-05-14 07:45:30 C 17 00 31.38 -10 33 19.8 u H21
2021-05-16 09:42:31 C 17 02 15.115 -09 47 31.52 V F51
2021-05-16 10:03:11 C 17 02 15.713 -09 47 12.41 V F51
2021-05-16 10:23:49 C 17 02 16.303 -09 46 53.13 V F51
2021-05-16 10:44:03 C 17 02 16.870 -09 46 34.22 V F51
2021-05-23 07:42:41 C 17 07 40.52 -06 58 25.4 V V06
2021-05-23 07:50:42 C 17 07 40.75 -06 58 16.6 V V06
2021-05-23 07:58:43 C 17 07 40.95 -06 58 08.2 V V06
2021-05-23 08:06:44 C 17 07 41.16 -06 57 59.4 V V06
2021-06-01 08:54:51 C 17 14 34.86 -02 37 28.5 V I52
2021-06-01 08:59:42 C 17 14 35.00 -02 37 22.0 V I52
2021-06-01 09:16:37 C 17 14 35.43 -02 36 59.4 V I52
2021-06-01 09:21:28 C 17 14 35.56 -02 36 53.9 V I52
2021-06-04 08:58:18 C 17 16 57.11 -01 01 44.8 V I52
2021-06-04 09:06:16 C 17 16 57.29 -01 01 33.6 V I52
2021-06-04 09:14:14 C 17 16 57.49 -01 01 22.9 V I52
2021-06-13 07:39:24 C 17 24 53.67 +04 03 59.0 V G96
2021-06-13 07:47:05 C 17 24 53.92 +04 04 10.0 V G96
2021-06-13 08:02:24 C 17 24 54.48 +04 04 33.5 V G96
2021-06-14 09:16:46 C 17 25 57.95 +04 41 54.5 V I52
2021-06-14 09:20:05 C 17 25 58.07 +04 41 59.5 V I52
2021-06-14 09:23:24 C 17 25 58.15 +04 42 05.5 V I52
2021-06-14 09:26:43 C 17 25 58.30 +04 42 10.8 V I52
2021-06-15 08:59:31 C 17 27 02.440 +05 17 20.91 U F51
2021-06-15 09:11:05 C 17 27 02.841 +05 17 38.41 U F51
2021-06-20 04:48:52 C 17 32 43.65 +08 10 59.1 o 291
2021-06-20 04:58:35 C 17 32 44.08 +08 11 13.6 o 291
2021-06-20 05:08:18 C 17 32 44.52 +08 11 28.5 o 291
2021-06-21 05:02:49 C 17 34 03.22 +08 47 25.7 o 691
2021-06-21 05:24:10 C 17 34 04.21 +08 47 57.7 o 691
2021-06-21 05:49:45 C 17 34 05.40 +08 48 36.2 o 691
2021-06-27 04:52:20 C 17 43 08.12 +12 21 38.4 o 691
2021-06-27 04:58:41 C 17 43 08.52 +12 21 47.5 o 691
2021-06-27 06:30:38 C 17 43 13.96 +12 24 02.8 V I52
2021-06-27 06:47:59 C 17 43 15.00 +12 24 28.4 V I52
2021-06-27 07:05:21 C 17 43 16.03 +12 24 53.8 V I52
2021-06-30 10:00:55 C 17 48 53.69 +14 13 10.9 V V06
2021-06-30 10:02:03 C 17 48 53.76 +14 13 12.6 V V06
2021-06-30 10:03:12 C 17 48 53.83 +14 13 13.9 V V06
2021-06-30 10:04:20 C 17 48 53.95 +14 13 15.7 V V06
2021-07-06 07:12:48 C 18 01 34.23 +17 25 45.3 V I52
2021-07-06 07:16:07 C 18 01 34.56 +17 25 49.7 V I52