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
2021-08-09 09:17:01 C 20 59 23.08 -13 53 14.0 V T08
2021-08-09 09:23:00 C 20 59 21.88 -13 53 16.0 V T08
2021-08-09 09:30:58 C 20 59 20.33 -13 53 18.1 V T08
2021-08-09 15:13:00 C 20 58 14.31 -13 54 49.4 q D29
2021-08-09 15:33:21 C 20 58 10.29 -13 54 54.3 q D29
2021-08-09 15:53:43 C 20 58 06.21 -13 55 00.1 q D29
2021-08-09 22:23:35 C 20 56 50.09 -13 56 43.9 V 033
2021-08-09 22:23:59 C 20 56 50.00 -13 56 43.8 V 033
2021-08-09 22:24:24 C 20 56 49.94 -13 56 44.0 V 033
2021-08-10 09:09:00 C 20 54 41.76 -13 59 23.5 V T08
2021-08-10 09:11:40 C 20 54 41.15 -13 59 23.9 V T08
2021-08-10 09:15:39 C 20 54 40.37 -13 59 26.1 V T08
2021-08-10 09:22:59 C 20 54 38.85 -13 59 27.2 V T08
2021-08-11 15:31:28 C 20 48 23.050 -14 06 59.04 V P07
2021-08-11 15:37:56 C 20 48 21.636 -14 07 00.70 V P07
2021-08-11 17:46:30 C 20 47 53.386 -14 07 33.35 V P07
2021-08-11 18:31:57 C 20 47 43.447 -14 07 45.08 V P07
2021-08-12 10:06:18 C 20 44 19.71 -14 11 57.2 V T05
2021-08-12 10:12:15 C 20 44 18.41 -14 11 58.8 V T05
2021-08-12 10:21:31 C 20 44 16.27 -14 12 01.1 V T05
2021-08-12 11:11:41 C 20 44 04.83 -14 12 13.7 V T05
2021-08-12 20:14:59 C 20 42 03.66 -14 14 37.8 V L18
2021-08-12 20:24:59 C 20 42 01.27 -14 14 39.7 V L18
2021-08-12 20:34:59 C 20 41 58.98 -14 14 41.9 V L18
2021-08-13 09:08:53 C 20 39 05.90 -14 17 42.5 V T08
2021-08-13 09:11:34 C 20 39 05.25 -14 17 43.3 V T08
2021-08-13 10:04:19 C 20 38 52.69 -14 17 57.4 V T08
2021-08-13 10:08:58 C 20 38 51.60 -14 17 58.9 V T08
2021-08-13 11:00:10 C 20 38 39.38 -14 18 11.2 V T08
2021-08-13 11:12:11 C 20 38 36.52 -14 18 12.9 V T08
2021-08-14 19:53:29 C 20 30 45.62 -14 26 13.2 V L18
2021-08-14 20:00:29 C 20 30 43.87 -14 26 13.8 V L18
2021-08-14 20:07:29 C 20 30 42.04 -14 26 16.7 V L18
2021-08-14 20:14:29 C 20 30 40.37 -14 26 18.5 V L18
2021-08-14 22:24:40 C 20 30 07.72 -14 26 47.9 V 204
2021-08-14 22:31:42 C 20 30 05.93 -14 26 49.7 V 204
2021-08-14 22:38:45 C 20 30 04.13 -14 26 51.1 V 204
2021-08-16 10:01:34 C 20 20 57.50 -14 34 35.9 V T05
2021-08-16 10:06:12 C 20 20 56.29 -14 34 37.5 V T05
2021-08-16 10:15:42 C 20 20 53.70 -14 34 39.2 V T05
2021-08-16 10:30:51 C 20 20 49.56 -14 34 42.0 V T05
2021-08-25 19:59:48 C 19 09 25.60 -14 50 41.0 X 595
2021-08-25 20:29:36 C 19 09 14.60 -14 50 37.4 X 595
2021-08-25 21:00:23 C 19 09 03.28 -14 50 33.2 X 595
2021-08-27 19:27:58 C 18 51 51.77 -14 41 49.9 X 595
2021-08-27 19:59:56 C 18 51 39.51 -14 41 42.4 X 595
2021-09-07 03:07:11 C 17 15 33.85 -12 24 46.3 o 691
2021-09-07 03:27:22 C 17 15 25.99 -12 24 29.4 o 691
2024-05-10 06:51:13 C 07 14 43.315 -04 15 16.96 V 474
2024-05-10 06:54:48 C 07 14 45.535 -04 15 27.32 V 474