2021 PH1

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4503244209 ± 1.91e-04
Semi-major axis (a)2.1889977356 AU ± 8.66e-04
Inclination (i)13.00520063° ± 2.25e-03
Long. of Asc. Node (Ω)286.09013203° ± 3.39e-03
Arg. of Perihelion (ω)20.77844649° ± 1.66e-03
Mean Anomaly (M)113.95319573° ± 2.81e-01
Mean Motion (n)0.3043296788°/day ± 1.81e-04
Perihelion dist (q)1.20323860 AU ± 6.34e-04
Aphelion dist (Q)3.17475687 AU ± 1.32e-03
Orbital Period3.23867947 yr ± 1.92e-03
Physical Parameters
H (abs. magnitude)20.92
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.311″
Uncertainty3
Orbit TypeAmor
MOID0.196734 AU
Observations Used35
Oppositions1
Arc Total2021-2021
First Observation Used2021-08-03
Last Observation Used2021-09-17
Observations (35)
Date Type RA Dec Mag Band Observatory
2021-08-03 06:50:34 C 16 02 44.362 -15 29 41.66 U F51
2021-08-03 07:08:22 C 16 02 46.491 -15 29 21.23 U F51
2021-08-03 07:26:08 C 16 02 48.638 -15 29 00.39 U F51
2021-08-03 07:43:53 C 16 02 50.776 -15 28 39.78 U F51
2021-08-03 10:13:57 C 16 03 09.86 -15 25 23.0 V 474
2021-08-03 10:18:11 C 16 03 10.31 -15 25 18.5 V 474
2021-08-03 10:22:24 C 16 03 10.89 -15 25 13.6 V 474
2021-08-03 10:26:38 C 16 03 11.42 -15 25 08.6 V 474
2021-08-04 01:27:49 C 16 05 06.08 -15 07 58.5 u 807
2021-08-04 01:39:57 C 16 05 07.55 -15 07 44.6 u 807
2021-08-04 01:52:05 C 16 05 09.03 -15 07 30.0 u 807
2021-08-04 02:48:28 C 16 05 16.37 -15 06 50.0 u H21
2021-08-04 03:04:03 C 16 05 18.30 -15 06 32.1 u H21
2021-08-04 03:13:09 C 16 05 19.42 -15 06 21.6 u H21
2021-08-04 06:28:57 C 16 05 44.679 -15 02 32.61 V 568
2021-08-04 06:30:22 C 16 05 44.845 -15 02 31.04 V 568
2021-08-04 06:31:46 C 16 05 45.017 -15 02 29.41 V 568
2021-08-04 06:33:19 C 16 05 45.212 -15 02 27.59 V 568
2021-08-05 02:24:36 C 16 08 18.12 -14 39 54.5 u H21
2021-08-05 02:40:27 C 16 08 20.08 -14 39 36.3 u H21
2021-08-06 00:03:16 C 16 11 06.23 -14 15 04.0 X Y00
2021-08-06 00:15:47 C 16 11 07.77 -14 14 50.0 X Y00
2021-08-06 00:28:16 C 16 11 09.31 -14 14 35.1 X Y00
2021-08-06 02:19:44 C 16 11 24.28 -14 12 50.5 u H21
2021-08-06 02:27:32 C 16 11 25.29 -14 12 41.5 u H21
2021-08-06 02:33:00 C 16 11 25.96 -14 12 34.9 u H21
2021-08-08 06:31:21 C 16 18 17.229 -13 14 29.68 U F51
2021-08-08 06:47:14 C 16 18 19.271 -13 14 12.02 U F51
2021-08-08 07:03:06 C 16 18 21.283 -13 13 54.35 U F51
2021-09-05 04:08:10 C 17 55 21.40 -02 45 04.3 o 291
2021-09-05 04:16:45 C 17 55 22.70 -02 44 58.4 o 291
2021-09-05 04:25:25 C 17 55 23.93 -02 44 51.2 o 291
2021-09-16 23:48:40 C 18 38 18.20 +00 26 57.9 V 807
2021-09-16 23:57:03 C 18 38 19.41 +00 27 03.7 V 807
2021-09-17 00:05:05 C 18 38 20.56 +00 27 08.0 V 807