2021 PD9

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4903739156 ± 7.66e-06
Semi-major axis (a)2.3582502324 AU ± 4.14e-05
Inclination (i)1.86834757° ± 2.05e-05
Long. of Asc. Node (Ω)196.34869294° ± 3.03e-05
Arg. of Perihelion (ω)185.10355939° ± 7.53e-05
Mean Anomaly (M)48.24131866° ± 1.07e-02
Mean Motion (n)0.2721619747°/day ± 7.17e-06
Perihelion dist (q)1.20182583 AU ± 2.78e-05
Aphelion dist (Q)3.51467463 AU ± 6.43e-05
Orbital Period3.62146947 yr ± 9.53e-05
Physical Parameters
H (abs. magnitude)22.15
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.157″
Uncertainty2
Orbit TypeAmor
MOID0.202594 AU
Observations Used141
Oppositions1
Arc Total2021-2021
First Observation Used2021-08-06
Last Observation Used2021-11-30
Observations (153)
Date Type RA Dec Mag Band Observatory
2021-10-07 06:24:53 C 01 49 37.56 +11 14 34.9 V G96
2021-10-07 06:32:23 C 01 49 38.25 +11 14 35.7 V G96
2021-10-07 06:39:53 C 01 49 38.93 +11 14 36.6 V G96
2021-10-09 07:00:21 C 01 54 30.50 +11 19 20.4 V 703
2021-10-09 07:08:34 C 01 54 31.29 +11 19 20.2 V 703
2021-10-09 07:16:47 C 01 54 31.94 +11 19 21.4 V 703
2021-10-09 07:25:00 C 01 54 32.65 +11 19 22.7 V 703
2021-10-10 21:09:44 C 01 58 17.25 +11 22 11.1 V A17
2021-10-10 21:26:46 C 01 58 18.82 +11 22 12.9 V A17
2021-10-10 21:43:47 C 01 58 20.37 +11 22 13.7 V A17
2021-10-11 11:56:32 C 01 59 41.885 +11 23 33.86 U F51
2021-10-11 12:13:21 C 01 59 43.331 +11 23 34.83 U F51
2021-10-11 12:30:14 C 01 59 44.781 +11 23 35.75 U F51
2021-10-11 12:47:02 C 01 59 46.234 +11 23 36.66 U F51
2021-10-11 15:21:16 C 02 00 03.23 +11 23 39.1 V D29
2021-10-11 15:41:37 C 02 00 05.00 +11 23 40.5 V D29
2021-10-11 16:01:59 C 02 00 06.78 +11 23 41.7 V D29
2021-10-12 15:19:46 C 02 02 22.03 +11 25 08.1 V D29
2021-10-12 15:40:07 C 02 02 23.76 +11 25 09.6 V D29
2021-10-12 16:00:29 C 02 02 25.52 +11 25 10.5 V D29
2021-10-13 12:13:28 C 02 04 19.850 +11 26 25.50 U F52
2021-10-13 12:48:27 C 02 04 22.788 +11 26 26.88 U F52
2021-10-13 13:05:57 C 02 04 24.263 +11 26 27.45 U F52
2021-10-14 12:51:57 C 02 06 38.567 +11 27 35.73 U F51
2021-10-14 12:58:28 C 02 06 39.112 +11 27 35.93 U F51
2021-10-14 13:04:56 C 02 06 39.647 +11 27 36.10 U F51
2021-10-14 13:11:22 C 02 06 40.186 +11 27 36.27 U F51
2021-10-16 05:36:33 C 02 10 26.59 +11 29 00.7 V 703
2021-10-16 05:51:55 C 02 10 28.04 +11 29 02.7 V 703
2021-10-16 05:59:37 C 02 10 28.65 +11 29 02.5 V 703
2021-10-25 08:32:57 C 02 28 45.35 +11 32 03.6 V 703
2021-10-25 08:40:41 C 02 28 45.86 +11 32 02.5 V 703
2021-10-25 08:48:25 C 02 28 46.39 +11 32 02.7 V 703
2021-10-25 08:56:09 C 02 28 46.85 +11 32 02.3 V 703
2021-10-26 12:21:09 C 02 30 49.847 +11 32 12.18 U F52
2021-10-26 12:38:41 C 02 30 50.957 +11 32 11.86 U F52
2021-10-26 12:56:07 C 02 30 52.092 +11 32 11.47 U F52
2021-10-26 13:13:35 C 02 30 53.214 +11 32 11.19 U F52
2021-10-27 07:05:29 C 02 32 13.61 +11 32 05.4 V G96
2021-10-27 07:13:27 C 02 32 14.11 +11 32 05.3 V G96
2021-10-27 07:21:25 C 02 32 14.61 +11 32 05.5 V G96
2021-10-27 07:29:25 C 02 32 15.12 +11 32 05.4 V G96
2021-10-31 07:15:23 C 02 38 52.13 +11 32 17.7 V 703
2021-10-31 07:38:22 C 02 38 53.38 +11 32 17.0 V 703
2021-10-31 07:48:56 C 02 38 55.797 +11 32 22.82 U F51
2021-10-31 08:20:32 C 02 38 57.595 +11 32 23.53 U F51
2021-10-31 08:36:22 C 02 38 58.484 +11 32 23.85 U F51
2021-11-01 22:35:12 C 02 41 24.61 +11 32 27.4 X J57
2021-11-02 00:42:02 C 02 41 31.54 +11 32 29.2 X J57
2021-11-02 02:43:28 C 02 41 38.24 +11 32 29.1 X J57