2018 PG21

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6360909987 ± 6.58e-08
Semi-major axis (a)2.5528416626 AU ± 4.66e-08
Inclination (i)15.82544209° ± 1.54e-05
Long. of Asc. Node (Ω)37.61625247° ± 9.62e-05
Arg. of Perihelion (ω)189.94111921° ± 9.41e-05
Mean Anomaly (M)321.89292216° ± 1.01e-05
Mean Motion (n)0.2416442457°/day ± 6.61e-09
Perihelion dist (q)0.92900206 AU ± 1.69e-07
Aphelion dist (Q)4.17668127 AU ± 1.84e-07
Orbital Period4.07883201 yr ± 1.12e-07
Physical Parameters
H (abs. magnitude)19.47
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.221″
Uncertainty0
Orbit TypeApollo
MOID0.068310 AU
Observations Used48
Oppositions7
Arc Total2017-2026
First Observation Used2017-12-14
Last Observation Used2026-01-11
Observations (49)
Date Type RA Dec Mag Band Observatory
2017-12-14 12:35:28 C 12 29 52.26 +18 05 53.7 V G96
2017-12-14 12:42:57 C 12 29 53.27 +18 05 48.1 V G96
2017-12-14 12:57:55 C 12 29 55.35 +18 05 38.4 V G96
2018-08-08 13:14:21 C 00 54 53.748 -19 10 09.25 U F51
2018-08-08 13:30:27 C 00 54 53.156 -19 10 14.25 U F51
2018-08-08 13:46:33 C 00 54 52.554 -19 10 19.75 U F51
2018-08-08 14:02:35 C 00 54 51.918 -19 10 24.65 U F51
2018-08-10 09:03:26 C 00 53 14.95 -19 24 25.6 U 807
2018-08-10 09:11:37 C 00 53 14.62 -19 24 28.3 U 807
2018-08-10 09:20:56 C 00 53 14.23 -19 24 31.3 U 807
2018-08-12 07:59:04 C 00 51 20.30 -19 39 56.4 U 807
2018-08-12 08:09:46 C 00 51 19.83 -19 39 59.9 U 807
2018-08-12 08:20:49 C 00 51 19.34 -19 40 03.5 U 807
2018-08-14 09:06:16 C 00 49 10.29 -19 56 19.7 u H21
2018-08-14 09:18:50 C 00 49 09.70 -19 56 23.8 u H21
2018-08-14 09:25:12 C 00 49 09.27 -19 56 18.7 U 807
2018-08-14 09:33:14 C 00 49 08.89 -19 56 20.7 U 807
2018-08-14 09:42:27 C 00 49 08.46 -19 56 24.2 U 807
2018-08-16 11:18:13 C 00 46 47.457 -20 12 51.57 V 679
2018-08-16 11:29:12 C 00 46 46.884 -20 12 55.08 V 679
2018-08-20 10:03:26 C 00 41 52.366 -20 43 25.59 V 679
2018-08-20 10:07:12 C 00 41 52.175 -20 43 26.72 V 679
2018-08-20 10:10:57 C 00 41 51.941 -20 43 27.99 V 679
2018-08-31 07:08:43 C 00 25 58.76 -21 57 25.7 o 291
2018-08-31 07:44:04 C 00 25 56.37 -21 57 34.9 o 291
2018-09-05 09:17:17 C 00 17 45.58 -22 23 48.0 o 291
2018-09-05 09:33:27 C 00 17 44.45 -22 23 51.0 o 291
2018-09-05 09:49:39 C 00 17 43.31 -22 23 53.6 o 291
2018-09-09 09:17:54 C 00 11 09.84 -22 39 37.8 o 291
2018-09-09 09:30:22 C 00 11 08.98 -22 39 39.9 o 291
2018-09-09 09:42:50 C 00 11 08.07 -22 39 41.4 o 291
2018-09-14 07:49:17 C 00 03 03.34 -22 52 36.7 o 291
2018-09-14 08:01:09 C 00 03 02.50 -22 52 38.4 o 291
2022-01-07 12:35:29 C 13 24 40.23 +17 36 05.7 V I52
2022-01-07 12:41:09 C 13 24 41.12 +17 36 01.7 V I52
2022-01-07 12:46:34 C 13 24 41.98 +17 35 57.7 V I52
2022-01-07 12:48:47 C 13 24 42.36 +17 35 56.0 V I52
2022-01-22 11:48:37 C 14 28 10.03 +12 03 21.2 V I52
2022-01-22 11:51:34 C 14 28 10.60 +12 03 17.9 V I52
2022-01-22 11:54:30 C 14 28 11.11 +12 03 14.6 V I52
2022-02-08 12:40:36 C 15 55 28.89 +02 30 55.9 V G96
2022-02-08 12:50:49 C 15 55 31.26 +02 30 39.1 V G96
2022-02-08 13:01:00 C 15 55 33.58 +02 30 22.1 V G96
2022-02-08 13:11:11 C 15 55 35.95 +02 30 05.7 V G96
2022-08-28 11:37:27 C 00 16 14.306 -25 28 25.16 U F51
2022-08-28 11:52:23 C 00 16 13.204 -25 28 28.35 U F51
2022-08-28 12:07:03 C 00 16 12.113 -25 28 31.70 U F51
2026-01-11 17:44:05 C 11 36 41.434 +36 56 59.93 W O18
2026-01-11 18:32:05 C 11 36 45.074 +36 57 24.59 W O18