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
2001-03-20 01:12:12 C 13 40 43.95 +67 01 01.6 049
2001-03-21 04:36:35 C 13 34 03.08 +67 17 30.9 642
2001-03-21 04:40:10 C 13 34 02.24 +67 17 33.2 642
2001-03-21 04:45:07 C 13 34 01.07 +67 17 36.7 642
2001-03-21 04:48:57 C 13 34 00.10 +67 17 38.3 642
2001-03-21 04:52:16 C 13 33 59.35 +67 17 40.2 642
2001-03-21 04:57:12 C 13 33 58.12 +67 17 43.3 642
2001-03-22 05:00:00 C 13 28 30.20 +67 29 00.5 642
2001-03-22 05:06:52 C 13 28 28.70 +67 29 04.2 642
2001-03-22 05:15:00 C 13 28 26.82 +67 29 06.4 642
2001-03-22 05:24:13 C 13 28 24.71 +67 29 12.0 642
2001-03-22 05:30:03 C 13 28 23.44 +67 29 14.4 642
2001-03-23 21:55:04 C 13 20 02.05 +67 42 27.8 049
2001-03-23 22:08:19 C 13 19 59.35 +67 42 31.4 049
2001-03-23 22:11:41 C 13 19 58.70 +67 42 32.3 049
2001-03-26 01:41:24 C 13 10 43.23 +67 51 01.6 726
2001-03-26 01:46:24 C 13 10 42.46 +67 51 02.6 726
2001-03-30 08:20:51 C 12 55 49.06 +67 48 44.1 c 699
2001-03-30 08:54:12 C 12 55 44.48 +67 48 39.4 c 699
2001-03-30 09:27:27 C 12 55 40.05 +67 48 34.7 c 699
2001-03-30 10:00:45 C 12 55 35.56 +67 48 29.6 c 699
2001-03-30 21:02:25 C 12 54 17.78 +67 46 55.4 611
2001-03-30 21:14:16 C 12 54 16.26 +67 46 54.1 611
2001-03-31 20:02:37 C 12 51 37.86 +67 43 10.8 557
2001-03-31 20:42:01 C 12 51 33.17 +67 43 05.0 557
2001-03-31 21:01:43 C 12 51 30.87 +67 43 02.1 557
2001-03-31 21:28:14 C 12 51 27.65 +67 42 57.8 557
2001-04-01 00:58:21 C 12 51 02.60 +67 42 19.3 557
2001-04-01 01:45:06 C 12 50 57.09 +67 42 09.4 557
2001-04-01 02:36:00 C 12 50 51.16 +67 41 58.4 557
2001-04-01 03:24:21 C 12 50 45.66 +67 41 47.4 557
2001-04-02 22:26:11 C 12 46 21.52 +67 32 29.1 049
2001-04-02 22:32:03 C 12 46 20.90 +67 32 27.8 049
2001-04-02 22:37:34 C 12 46 20.31 +67 32 25.9 049
2001-04-03 20:43:42 C 12 44 17.48 +67 26 46.6 118
2001-04-03 20:53:24 C 12 44 16.55 +67 26 44.2 118
2001-04-09 22:23:34 C 12 33 41.58 +66 37 35.4 049
2001-04-09 22:30:36 C 12 33 41.20 +66 37 32.6 049
2001-04-09 22:37:55 C 12 33 40.73 +66 37 29.8 049
2001-04-12 06:29:06 C 12 30 47.96 +66 14 24.8 17.9 c 704
2001-04-12 07:11:00 C 12 30 45.44 +66 14 06.1 18.0 c 704
2001-04-12 07:32:34 C 12 30 44.34 +66 13 56.6 18.0 c 704
2001-04-12 07:53:41 C 12 30 43.18 +66 13 46.7 17.8 c 704
2001-04-29 05:05:55 C 12 23 06.81 +62 40 03.0 c 699
2001-04-29 05:38:24 C 12 23 06.67 +62 39 44.0 c 699
2001-04-29 06:10:55 C 12 23 06.66 +62 39 23.6 c 699
2001-04-29 06:43:24 C 12 23 06.62 +62 39 04.4 c 699
2001-05-19 22:09:46 C 12 32 46.82 +57 19 10.7 118
2001-05-19 22:15:28 C 12 32 47.01 +57 19 07.3 118
2001-05-20 21:09:06 C 12 33 31.78 +57 03 30.4 621
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)