2021 PY40

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4424173703 ± 2.16e-08
Semi-major axis (a)1.5371537367 AU ± 2.64e-08
Inclination (i)10.42696076° ± 7.37e-06
Long. of Asc. Node (Ω)171.81399373° ± 5.25e-06
Arg. of Perihelion (ω)256.54527431° ± 1.09e-05
Mean Anomaly (M)36.40026008° ± 1.97e-05
Mean Motion (n)0.5171735654°/day ± 1.33e-08
Perihelion dist (q)0.85709022 AU ± 3.63e-08
Aphelion dist (Q)2.21721725 AU ± 5.05e-08
Orbital Period1.90579401 yr ± 4.91e-08
Physical Parameters
H (abs. magnitude)20.96
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.258″
Uncertainty0
Orbit TypeApollo
MOID0.050164 AU
Observations Used278
Oppositions1
Arc Total2019-2022
First Observation Used2019-06-25
Last Observation Used2022-04-03
Observations (290)
Date Type RA Dec Mag Band Observatory
2021-09-14 04:07:20 C 22 02 57.84 -07 05 11.5 V 703
2021-09-14 04:23:27 C 22 02 56.19 -07 06 03.3 V 703
2021-09-14 04:31:04 C 22 02 55.50 -07 06 26.9 V 703
2021-09-14 11:34:26 V 22 02 17.81 -07 27 57.9 V 247
2021-09-14 11:34:26 v 1 172.5876 -43.4953 247
2021-09-14 11:43:31 V 22 02 16.90 -07 28 27.6 V 247
2021-09-14 11:43:31 v 1 172.5876 -43.4953 247
2021-09-14 11:52:36 V 22 02 16.00 -07 28 56.7 V 247
2021-09-14 11:52:36 v 1 172.5876 -43.4953 247
2021-09-14 20:18:08 C 22 01 33.65 -07 58 05.8 V 246
2021-09-14 20:18:33 C 22 01 33.61 -07 58 07.8 V 246
2021-09-14 20:18:45 C 22 01 33.57 -07 58 08.1 V 246
2021-09-14 20:18:56 C 22 01 33.58 -07 58 08.7 V 246
2021-09-14 20:19:08 C 22 01 33.54 -07 58 09.2 V 246
2021-09-14 20:19:19 C 22 01 33.49 -07 58 09.9 V 246
2021-09-14 20:19:31 C 22 01 33.50 -07 58 10.5 V 246
2021-09-15 00:55:04 C 22 01 10.72 -08 13 25.2 V W46
2021-09-15 01:13:19 C 22 01 08.92 -08 14 26.7 V W46
2021-09-15 01:27:46 C 22 01 07.48 -08 15 16.7 V W46
2021-09-15 04:53:00 C 22 00 48.21 -08 26 52.6 o 691
2021-09-15 04:59:43 C 22 00 47.51 -08 27 15.5 o 691
2021-09-15 05:06:26 C 22 00 46.81 -08 27 38.6 o 691
2021-09-15 19:51:59 C 21 59 26.42 -09 19 25.2 V L18
2021-09-15 19:55:53 C 21 59 25.95 -09 19 38.6 V L18
2021-09-15 19:59:47 C 21 59 25.60 -09 19 53.5 V L18
2021-09-15 20:03:41 C 21 59 25.21 -09 20 06.7 V L18
2021-09-15 20:07:35 C 21 59 24.78 -09 20 20.5 V L18
2021-09-16 04:32:30 C 21 58 38.60 -09 50 34.2 o 691
2021-09-16 04:41:56 C 21 58 37.56 -09 51 08.9 o 691
2021-09-16 04:51:21 C 21 58 36.55 -09 51 43.3 o 691
2021-09-21 09:43:46 C 21 44 48.44 -19 01 02.7 V T05
2021-09-21 09:50:23 C 21 44 47.45 -19 01 37.3 V T05
2021-09-21 09:59:37 C 21 44 46.06 -19 02 24.5 V T05
2021-09-21 10:48:08 C 21 44 38.84 -19 06 34.9 V T05
2021-09-21 20:50:25 C 21 43 22.53 -20 00 16.9 V 204
2021-09-21 20:56:07 C 21 43 21.66 -20 00 48.3 V 204
2021-09-21 21:01:49 C 21 43 20.81 -20 01 18.2 V 204
2021-09-22 09:07:52 C 21 41 39.53 -21 07 08.8 V T08
2021-09-22 09:12:30 C 21 41 38.77 -21 07 34.4 V T08
2021-09-22 09:21:08 C 21 41 37.36 -21 08 22.7 V T08
2021-09-22 09:35:46 C 21 41 34.99 -21 09 43.5 V T08
2021-09-22 10:00:04 C 21 41 35.62 -21 10 50.8 q E23
2021-09-22 10:08:41 C 21 41 34.25 -21 11 39.2 q E23
2021-09-22 10:16:05 C 21 41 33.07 -21 12 20.6 q E23
2021-09-24 08:09:09 C 21 34 32.69 -25 45 39.4 V T05
2021-09-24 08:13:46 C 21 34 31.80 -25 46 08.1 V T05
2021-09-24 08:22:59 C 21 34 30.07 -25 47 06.0 V T05
2021-09-24 08:38:49 C 21 34 27.07 -25 48 45.2 V T05
2021-09-26 00:33:11 C 21 27 23.70 -30 11 26.0 u 807
2021-09-26 00:37:45 C 21 27 22.66 -30 11 57.7 u 807