2021 PO

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.8361556762 ± 6.88e-08
Semi-major axis (a)1.8133185914 AU ± 3.32e-08
Inclination (i)8.97431567° ± 1.32e-05
Long. of Asc. Node (Ω)309.40527950° ± 1.63e-05
Arg. of Perihelion (ω)145.31985900° ± 2.19e-05
Mean Anomaly (M)241.01735515° ± 1.16e-05
Mean Motion (n)0.4036464198°/day ± 1.11e-08
Perihelion dist (q)0.29710196 AU ± 1.25e-07
Aphelion dist (Q)3.32953522 AU ± 1.39e-07
Orbital Period2.44180608 yr ± 6.71e-08
Physical Parameters
H (abs. magnitude)19.37
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.267″
Uncertainty0
Orbit TypeApollo
MOID0.058554 AU
Observations Used152
Oppositions5
Arc Total2016-2024
First Observation Used2016-08-07
Last Observation Used2024-05-31
Observations (155)
Date Type RA Dec Mag Band Observatory
2021-08-04 05:12:50 C 21 20 15.75 -13 22 26.7 u 807
2021-08-04 05:14:01 C 21 20 15.83 -13 22 44.4 u H21
2021-08-04 05:17:21 C 21 20 15.33 -13 22 45.4 u H21
2021-08-04 06:09:44 C 21 20 07.57 -13 22 57.4 q H36
2021-08-04 06:23:45 C 21 20 05.43 -13 23 00.6 q H36
2021-08-04 06:52:49 C 21 20 01.05 -13 23 07.3 q H36
2021-08-04 10:21:44 C 21 19 30.73 -13 23 34.9 q E94
2021-08-04 10:45:52 C 21 19 27.08 -13 23 41.1 q E94
2021-08-04 11:16:07 C 21 19 22.49 -13 23 48.6 q E94
2021-08-04 11:49:58 C 21 19 17.35 -13 23 56.9 q E94
2021-08-04 12:51:08 C 21 19 08.44 -13 24 10.9 q E23
2021-08-04 13:11:08 C 21 19 05.36 -13 24 15.7 q E23
2021-08-04 13:31:08 C 21 19 02.31 -13 24 20.9 q E23
2021-08-05 11:13:32 C 21 15 42.87 -13 29 42.3 V T08
2021-08-05 11:52:35 C 21 15 36.60 -13 29 51.7 V T08
2021-08-05 11:57:17 C 21 15 35.83 -13 29 53.1 V T08
2021-08-05 12:38:29 C 21 15 29.08 -13 30 02.3 V T08
2021-08-05 15:26:13 C 21 15 03.51 -13 30 46.5 q D29
2021-08-05 15:46:35 C 21 15 00.22 -13 30 51.5 q D29
2021-08-05 16:06:57 C 21 14 56.89 -13 30 56.5 q D29
2021-08-06 09:32:58 C 21 12 08.36 -13 35 07.6 V T08
2021-08-06 09:36:57 C 21 12 07.68 -13 35 08.6 V T08
2021-08-06 09:41:37 C 21 12 06.90 -13 35 09.6 V T08
2021-08-06 09:49:36 C 21 12 05.54 -13 35 12.3 V T08
2021-08-06 13:10:16 C 21 11 32.06 -13 35 43.1 V R65
2021-08-06 13:15:56 C 21 11 31.12 -13 35 44.6 V R65
2021-08-06 13:21:38 C 21 11 30.13 -13 35 45.9 V R65
2021-08-07 09:08:55 C 21 08 09.55 -13 40 59.8 V T05
2021-08-07 09:09:08 C 21 08 09.48 -13 40 59.3 V T08
2021-08-07 09:13:07 C 21 08 08.72 -13 41 00.9 V T08
2021-08-07 09:13:33 C 21 08 08.70 -13 41 00.9 V T05
2021-08-07 09:17:07 C 21 08 08.10 -13 41 00.9 V T08
2021-08-07 09:17:30 C 21 08 08.03 -13 41 01.6 V T05
2021-08-07 09:21:05 C 21 08 07.36 -13 41 02.1 V T08
2021-08-07 09:21:28 C 21 08 07.30 -13 41 02.7 V T05
2021-08-07 21:51:35 C 21 05 55.62 -13 44 16.2 q 157
2021-08-07 22:01:08 C 21 05 53.90 -13 44 18.6 q 157
2021-08-07 22:11:15 C 21 05 52.06 -13 44 20.7 q 157
2021-08-08 09:08:49 C 21 03 53.80 -13 47 03.0 V T08
2021-08-08 09:08:50 C 21 03 53.82 -13 47 03.3 V T05
2021-08-08 09:16:46 C 21 03 52.33 -13 47 05.0 V T05
2021-08-08 09:17:48 C 21 03 52.08 -13 47 05.4 V T08
2021-08-08 09:20:44 C 21 03 51.56 -13 47 07.1 V T05
2021-08-08 09:21:23 C 21 03 51.46 -13 47 07.0 V T05
2021-08-08 09:24:01 C 21 03 50.93 -13 47 07.5 V T05
2021-08-08 09:26:45 C 21 03 50.43 -13 47 08.4 V T08
2021-08-08 09:27:59 C 21 03 50.20 -13 47 08.4 V T05
2021-08-08 09:35:15 C 21 03 48.86 -13 47 10.7 V T05
2021-08-08 09:35:40 C 21 03 48.79 -13 47 09.7 V T08
2021-08-09 09:11:42 C 20 59 24.13 -13 53 12.8 V T08