2021 PH27

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.7115454392 ± 2.08e-07
Semi-major axis (a)0.4617618725 AU ± 7.57e-09
Inclination (i)31.93911542° ± 3.73e-05
Long. of Asc. Node (Ω)39.39515294° ± 1.96e-05
Arg. of Perihelion (ω)8.58134563° ± 1.54e-05
Mean Anomaly (M)48.47125728° ± 9.00e-05
Mean Motion (n)3.1411246460°/day ± 7.72e-08
Perihelion dist (q)0.13319732 AU ± 9.61e-08
Aphelion dist (Q)0.79032643 AU ± 9.69e-08
Orbital Period0.31378133 yr ± 7.71e-09
Physical Parameters
H (abs. magnitude)17.67
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.124″
Uncertainty0
Orbit TypeAtira
MOID0.225972 AU
Observations Used95
Oppositions15
Arc Total2017-2024
First Observation Used2017-07-16
Last Observation Used2024-03-02
Observations (105)
Date Type RA Dec Mag Band Observatory
2017-07-16 23:19:20 C 10 40 11.857 +03 25 03.52 V W84
2017-07-16 23:20:19 C 10 40 11.964 +03 25 02.19 V W84
2021-08-13 23:13:29 C 11 46 49.209 -02 09 10.72 V 807
2021-08-13 23:16:22 C 11 46 49.517 -02 09 14.67 V 807
2021-08-14 23:08:10 C 11 49 22.071 -02 40 24.87 V 304
2021-08-14 23:08:48 C 11 49 22.142 -02 40 25.61 V 807
2021-08-14 23:09:44 C 11 49 22.240 -02 40 26.82 V 807
2021-08-14 23:10:25 C 11 49 22.302 -02 40 27.79 V 304
2021-08-14 23:12:25 C 11 49 22.518 -02 40 30.41 V 304
2021-08-14 23:12:39 C 11 49 22.540 -02 40 30.54 V 807
2021-08-14 23:14:30 C 11 49 22.738 -02 40 33.12 V 304
2021-08-14 23:15:32 C 11 49 22.844 -02 40 34.40 V 807
2021-08-14 23:16:25 C 11 49 22.941 -02 40 35.60 V 304
2021-08-15 17:06:36 C 11 51 15.524 -03 03 38.91 V K91
2021-08-15 23:09:59 C 11 51 53.487 -03 11 25.85 V 807
2021-08-15 23:10:55 C 11 51 53.581 -03 11 26.92 V 807
2021-08-15 23:11:22 C 11 51 53.622 -03 11 27.77 V 304
2021-08-15 23:11:54 C 11 51 53.680 -03 11 28.27 V 807
2021-08-15 23:12:55 C 11 51 53.786 -03 11 29.58 V 807
2021-08-15 23:13:25 C 11 51 53.841 -03 11 30.44 V 304
2021-08-15 23:13:56 C 11 51 53.901 -03 11 30.96 V 807
2021-08-15 23:14:57 C 11 51 53.995 -03 11 32.41 V W85
2021-08-15 23:14:59 C 11 51 54.003 -03 11 32.25 V 807
2021-08-15 23:15:20 C 11 51 54.035 -03 11 32.84 V 304
2021-08-15 23:15:58 C 11 51 54.091 -03 11 33.55 V W87
2021-08-15 23:16:02 C 11 51 54.108 -03 11 33.63 V 807
2021-08-15 23:17:04 C 11 51 54.218 -03 11 34.98 V W84
2021-08-15 23:17:13 C 11 51 54.235 -03 11 35.27 V 304
2021-08-15 23:21:35 C 11 51 54.717 -03 11 40.88 V W85
2021-08-15 23:22:35 C 11 51 54.804 -03 11 41.67 V W87
2021-08-16 23:09:21 C 11 54 22.522 -03 42 01.93 V W84
2021-08-16 23:15:15 C 11 54 23.18 -03 42 09.5 V W85
2021-08-16 23:16:42 C 11 54 23.27 -03 42 11.0 V W85
2021-08-16 23:18:09 C 11 54 23.44 -03 42 13.0 V W85
2021-08-17 21:45:21 C 11 56 40.98 -04 10 34.1 X Y00
2021-08-17 21:49:43 C 11 56 41.43 -04 10 40.1 X Y00
2021-08-18 08:33:56 C 11 57 46.71 -04 24 03.7 V Q63
2021-08-18 08:35:22 C 11 57 46.87 -04 24 05.3 V Q63
2021-08-18 08:36:50 C 11 57 47.00 -04 24 07.5 V Q63
2021-08-18 08:38:17 C 11 57 47.17 -04 24 09.3 V Q63
2021-08-18 08:39:44 C 11 57 47.30 -04 24 10.8 V Q63
2021-08-18 08:42:22 C 11 57 47.56 -04 24 14.3 V Q62
2021-08-18 08:49:27 C 11 57 48.24 -04 24 23.1 V Q62
2021-08-30 17:32:43 B 12 25 35.525 -10 09 33.29 V L80
2021-08-30 17:41:13 B 12 25 36.248 -10 09 42.52 V L80
2021-09-08 17:48:41 B 12 43 25.589 -13 49 26.78 V L80
2022-02-18 05:30:19 C 20 01 44.208 -09 36 42.33 V C65
2022-02-22 05:26:06 C 19 57 58.954 -10 56 57.68 V C65
2022-02-23 05:13:09 C 19 57 38.980 -11 17 28.44 V C65
2022-02-25 12:39:43 C 19 57 40.57 -12 05 36.6 V G37