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
2021-11-03 06:19:25 C 02 43 22.44 +11 32 54.0 V 703
2021-11-03 06:26:59 C 02 43 22.84 +11 32 54.8 V 703
2021-11-03 06:34:32 C 02 43 23.29 +11 32 54.8 V 703
2021-11-03 06:42:06 C 02 43 23.60 +11 32 53.7 V 703
2021-11-03 14:56:40 C 02 43 54.149 +11 33 35.14 V P07
2021-11-03 14:59:25 C 02 43 54.295 +11 33 35.21 V P07
2021-11-03 17:06:41 C 02 44 00.691 +11 33 37.51 V P07
2021-11-03 18:00:49 C 02 44 03.415 +11 33 38.20 V P07
2021-11-03 19:06:17 C 02 44 06.770 +11 33 37.55 V P07
2021-11-04 14:56:36 C 02 45 20.112 +11 33 59.29 V P07
2021-11-04 14:58:32 C 02 45 20.258 +11 33 59.72 V P07
2021-11-04 15:59:15 C 02 45 23.182 +11 34 01.24 V P07
2021-11-04 17:06:08 C 02 45 26.467 +11 34 01.96 V P07
2021-11-04 17:58:39 C 02 45 29.023 +11 34 02.53 V P07
2021-11-04 18:51:06 C 02 45 31.666 +11 34 03.32 V P07
2021-11-06 11:15:00 C 02 47 52.191 +11 34 35.74 U F52
2021-11-06 11:32:30 C 02 47 53.007 +11 34 35.99 U F52
2021-11-08 15:41:51 C 02 50 46.42 +11 36 15.8 V D29
2021-11-08 16:02:13 C 02 50 47.32 +11 36 16.7 V D29
2021-11-08 16:22:35 C 02 50 48.25 +11 36 17.1 V D29
2021-11-09 10:54:58 C 02 51 47.469 +11 37 12.49 U F51
2021-11-09 11:13:31 C 02 51 48.272 +11 37 13.22 U F51
2021-11-09 11:32:01 C 02 51 49.086 +11 37 13.84 U F51
2021-11-09 11:50:33 C 02 51 49.903 +11 37 14.44 U F51
2021-11-11 07:23:41 C 02 54 08.106 +11 39 27.71 U F52
2021-11-11 07:28:29 C 02 54 08.318 +11 39 28.06 U F51
2021-11-11 07:38:24 C 02 54 08.749 +11 39 28.81 U F52
2021-11-11 07:43:20 C 02 54 08.959 +11 39 29.16 U F51
2021-11-11 07:53:07 C 02 54 09.377 +11 39 29.86 U F52
2021-11-11 07:58:15 C 02 54 09.601 +11 39 30.25 U F51
2021-11-11 08:07:50 C 02 54 10.008 +11 39 30.88 U F52
2021-11-11 08:13:10 C 02 54 10.235 +11 39 31.28 U F51
2021-11-13 17:16:41 C 02 56 59.33 +11 43 07.3 V D29
2021-11-13 17:42:08 C 02 57 00.45 +11 43 09.4 V D29
2021-11-13 18:07:35 C 02 57 01.54 +11 43 10.8 V D29
2021-11-14 05:29:50 C 02 57 36.55 +11 44 03.1 V G96
2021-11-14 05:37:55 C 02 57 36.90 +11 44 03.6 V G96
2021-11-14 05:46:02 C 02 57 37.22 +11 44 04.6 V G96
2021-11-14 05:54:08 C 02 57 37.55 +11 44 05.0 V G96
2021-11-24 07:50:57 C 03 08 35.286 +12 10 56.34 U F51
2021-11-24 08:08:55 C 03 08 35.935 +12 10 58.93 U F51
2021-11-24 08:26:56 C 03 08 36.563 +12 11 01.53 U F51
2021-11-27 11:27:29 C 03 11 47.036 +12 22 31.18 U F52
2021-11-27 11:58:32 C 03 11 48.164 +12 22 35.76 U F52
2021-11-27 12:14:06 C 03 11 48.757 +12 22 38.08 U F52
2021-11-29 05:20:22 C 03 13 34.51 +12 29 29.1 V G96
2021-11-29 05:27:46 C 03 13 34.79 +12 29 30.4 V G96
2021-11-29 05:35:09 C 03 13 35.05 +12 29 32.0 V G96
2021-11-29 05:42:33 C 03 13 35.30 +12 29 33.0 V G96
2021-11-30 04:47:39 C 03 14 34.08 +12 33 36.7 V G96