23187 (2000 PN9)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5893652209 ± 4.57e-09
Semi-major axis (a)1.8469477145 AU ± 3.08e-10
Inclination (i)51.33590425° ± 2.99e-06
Long. of Asc. Node (Ω)164.28086830° ± 2.07e-07
Arg. of Perihelion (ω)293.54110100° ± 1.16e-06
Mean Anomaly (M)324.53859175° ± 7.01e-07
Mean Motion (n)0.3926723979°/day ± 9.83e-11
Perihelion dist (q)0.75842097 AU ± 8.45e-09
Aphelion dist (Q)2.93547446 AU ± 8.46e-09
Orbital Period2.51004728 yr ± 6.28e-10
Physical Parameters
H (abs. magnitude)16.05
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.292″
Uncertainty0
Orbit TypeApollo
MOID0.014129 AU
Observations Used2223
Radar Obs Used8
Gaia Obs Used118
Oppositions16
Arc Total1990-2025
First Observation Used1990-08-02
Last Observation Used2025-11-12
Observations (2307)
Date Type RA Dec Mag Band Observatory
2006-03-15 11:00:52 C 10 57 13.20 +74 01 36.6 m 379
2006-03-15 11:06:37 C 10 57 14.34 +74 01 28.0 m 379
2006-03-15 11:12:21 C 10 57 15.67 +74 01 18.6 m 379
2006-03-15 13:02:15 C 10 57 38.15 +73 58 26.7 m 355
2006-03-15 13:07:32 C 10 57 39.18 +73 58 18.4 m 355
2006-03-15 13:24:04 C 10 57 42.43 +73 57 51.3 m 355
2006-03-15 13:26:17 C 10 57 42.93 +73 57 48.0 m 355
2006-03-15 13:29:34 C 10 57 43.49 +73 57 42.9 m 355
2006-03-15 22:50:12 C 10 59 48.44 +73 42 29.8 o 084
2006-03-15 22:50:23 C 10 59 48.38 +73 42 29.4 o 084
2006-03-15 22:50:33 C 10 59 48.33 +73 42 29.0 o 084
2006-03-15 22:50:45 C 10 59 48.44 +73 42 28.7 o 084
2006-03-15 22:50:55 C 10 59 48.43 +73 42 28.5 o 084
2006-03-15 22:51:05 C 10 59 48.63 +73 42 28.8 o 084
2006-03-16 22:53:42 C 11 04 25.83 +73 08 09.1 o 084
2006-03-16 22:53:53 C 11 04 25.94 +73 08 09.9 o 084
2006-03-16 22:54:04 C 11 04 25.83 +73 08 09.2 o 084
2006-03-16 22:54:15 C 11 04 25.80 +73 08 09.6 o 084
2006-03-16 22:54:27 C 11 04 25.80 +73 08 08.0 o 084
2006-03-16 22:54:44 C 11 04 25.85 +73 08 07.5 o 084
2006-03-16 22:54:55 C 11 04 25.98 +73 08 08.1 o 084
2006-03-16 22:55:18 C 11 04 26.03 +73 08 07.6 o 084
2006-03-16 22:55:29 C 11 04 25.93 +73 08 07.0 o 084
2006-03-16 22:55:58 C 11 04 26.12 +73 08 07.0 o 084
2006-03-16 22:56:09 C 11 04 26.23 +73 08 05.9 o 084
2006-03-16 22:56:21 C 11 04 26.13 +73 08 06.3 o 084
2006-03-16 22:56:51 C 11 04 26.17 +73 08 06.0 o 084
2006-03-17 13:15:28 C 11 06 46.51 +72 50 13.0 m 379
2006-03-17 13:18:21 C 11 06 46.85 +72 50 09.6 m 379
2006-03-17 13:21:12 C 11 06 47.16 +72 50 06.4 m 379
2006-03-17 13:26:57 C 11 06 47.82 +72 49 59.6 m 379
2006-03-17 13:29:51 C 11 06 48.17 +72 49 56.0 m 379
2006-03-17 13:32:43 C 11 06 48.49 +72 49 52.7 m 379
2006-03-17 15:34:14 C 11 07 01.86 +72 47 23.5 m 355
2006-03-17 15:35:59 C 11 07 02.07 +72 47 21.3 m 355
2006-03-17 15:37:37 C 11 07 02.24 +72 47 19.3 m 355
2006-03-17 15:39:37 C 11 07 02.45 +72 47 16.5 m 355
2006-03-17 15:41:12 C 11 07 02.59 +72 47 15.0 m 355
2006-03-17 22:43:14 C 11 08 03.44 +72 38 42.0 o 084
2006-03-17 22:45:21 C 11 08 03.69 +72 38 39.4 o 084
2006-03-18 20:25:09 C 11 10 50.63 +72 14 55.0 c 127
2006-03-18 20:29:35 C 11 10 51.07 +72 14 50.5 c 127
2006-03-18 20:33:49 C 11 10 51.48 +72 14 46.6 c 127
2006-03-18 20:38:23 C 11 10 51.90 +72 14 42.2 c 127
2006-03-18 20:42:31 C 11 10 52.31 +72 14 37.9 c 127
2006-03-18 23:46:03 C 11 11 08.68 +72 11 32.7 o A74
2006-03-18 23:47:12 C 11 11 08.78 +72 11 31.5 o A74
2006-03-18 23:48:22 C 11 11 08.87 +72 11 30.3 o A74
2006-03-18 23:49:31 C 11 11 08.99 +72 11 29.1 o A74
2006-03-18 23:51:50 C 11 11 09.19 +72 11 26.6 o A74
Radar Observations (8)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2001-03-03 09:45:00 -89603 3 Hz 2380 -1 -1
2001-03-03 11:20:00 62195926.9 10 us 8560 -14 -14
2001-03-03 11:20:00 -345113.8 5 Hz 8560 -14 -14
2001-03-04 10:29:00 67714671.08 2 us 2380 -1 -1
2001-03-05 10:04:00 76798876 2 us 2380 -1 -1
2006-03-07 17:10:00 34277451 20 us 8560 -14 -14
2006-03-07 19:00:00 35392186 3 us 8560 -14 -14
2006-03-07 20:10:00 36111353.6 1 us 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m) -1 Arecibo (305-m, 1963–2020)