2021 JD9

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4887877885
Semi-major axis (a)1.7961565947 AU
Inclination (i)0.65751704°
Long. of Asc. Node (Ω)198.38022807° ± 5.00e+00
Arg. of Perihelion (ω)346.01733553° ± 6.00e+00
Mean Anomaly (M)332.14909916°
Mean Motion (n)0.4094538500°/day
Perihelion dist (q)0.91822200 AU
Aphelion dist (Q)2.67399640 AU
Orbital Period2.40712760 yr
Physical Parameters
H (abs. magnitude)26.58
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-18
RMS Residual0.470″
Uncertainty
Orbit TypeApollo
MOID0.005726 AU
Observations Used62
Oppositions1
Arc Total
First Observation Used
Last Observation Used2021-05-15
Observations (65)
Date Type RA Dec Mag Band Observatory
2021-05-10 12:15:30 C 15 11 49.329 +16 22 42.42 V F51
2021-05-11 00:04:38 C 15 35 04.33 +09 15 04.4 o K88
2021-05-11 00:05:27 C 15 35 05.53 +09 14 39.6 o K88
2021-05-11 07:29:28 C 15 45 54.43 +05 53 57.3 V U68
2021-05-11 07:32:15 C 15 45 57.57 +05 52 49.2 V U68
2021-05-11 07:34:21 C 15 45 59.99 +05 51 57.1 V U68
2021-05-11 07:37:09 C 15 46 03.12 +05 50 49.0 V U68
2021-05-11 23:55:37 C 16 02 38.73 +00 21 14.4 o K88
2021-05-11 23:56:33 C 16 02 39.45 +00 20 58.5 o K88
2021-05-12 01:06:38 C 16 03 30.55 +00 02 09.1 V K88
2021-05-12 01:09:54 C 16 03 32.94 +00 01 17.2 V K88
2021-05-12 01:13:13 C 16 03 35.32 +00 00 24.1 V K88
2021-05-12 03:10:02 C 16 05 21.91 -00 21 06.3 X Y00
2021-05-12 03:13:54 C 16 05 24.38 -00 22 05.6 X Y00
2021-05-12 03:17:33 C 16 05 26.72 -00 23 01.9 X Y00
2021-05-12 03:19:04 C 16 05 27.68 -00 23 24.3 X Y00
2021-05-12 04:33:11 C 16 06 41.86 -00 48 51.2 V I52
2021-05-12 04:33:27 C 16 06 42.05 -00 48 55.0 V I52
2021-05-12 04:33:44 C 16 06 42.21 -00 48 58.8 V I52
2021-05-12 04:34:00 C 16 06 42.42 -00 49 03.1 V I52
2021-05-12 07:16:38 C 16 08 23.06 -01 27 55.8 V H01
2021-05-12 07:21:03 C 16 08 25.68 -01 28 57.2 V H01
2021-05-12 07:38:40 C 16 08 36.07 -01 32 59.9 V H01
2021-05-12 07:52:08 C 16 08 43.96 -01 36 04.2 V H01
2021-05-12 08:09:49 C 16 08 58.82 -01 40 07.5 V 654
2021-05-12 08:50:47 C 16 09 22.41 -01 49 19.3 V 654
2021-05-12 09:23:06 C 16 09 40.79 -01 56 28.7 V 654
2021-05-12 11:36:37 C 16 11 10.33 -02 23 41.9 V T05
2021-05-12 11:41:17 C 16 11 12.82 -02 24 40.5 V T05
2021-05-12 12:18:20 C 16 11 31.94 -02 32 22.7 V T05
2021-05-12 12:59:05 C 16 11 53.09 -02 40 44.7 V T05
2021-05-12 20:13:44 C 16 16 27.85 -04 05 40.1 V L18
2021-05-12 20:21:14 C 16 16 31.51 -04 07 00.8 V L18
2021-05-12 20:28:44 C 16 16 34.99 -04 08 18.9 V L18
2021-05-13 07:15:48 C 16 21 44.29 -05 49 23.1 V 654
2021-05-13 07:51:42 C 16 21 49.59 -05 54 51.1 V H36
2021-05-13 07:53:25 C 16 21 50.27 -05 55 05.9 q 734
2021-05-13 07:55:27 C 16 21 50.99 -05 55 23.0 q 734
2021-05-13 07:55:54 C 16 21 58.38 -05 55 05.7 V 654
2021-05-13 08:01:12 C 16 21 52.93 -05 56 11.1 V H36
2021-05-13 08:01:24 C 16 21 53.08 -05 56 13.4 q 734
2021-05-13 08:03:22 C 16 21 53.78 -05 56 29.7 q 734
2021-05-13 08:09:25 C 16 21 55.79 -05 57 21.1 V H36
2021-05-13 08:32:37 C 16 22 11.04 -06 00 14.9 V 654
2021-05-13 14:24:00 C 16 24 34.99 -06 40 31.8 q E23
2021-05-13 14:50:40 C 16 24 43.14 -06 43 53.8 q E23
2021-05-13 15:10:19 C 16 24 43.82 -06 45 28.0 V 474
2021-05-13 15:12:05 C 16 24 44.45 -06 45 41.4 V 474
2021-05-13 15:16:33 C 16 24 45.85 -06 46 14.6 V 474
2021-05-13 15:17:21 C 16 24 51.06 -06 47 15.1 q E23