164211 (2004 JA27)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4232887651 ± 1.05e-08
Semi-major axis (a)1.6663096345 AU ± 9.45e-10
Inclination (i)2.25792174° ± 2.63e-06
Long. of Asc. Node (Ω)67.75991093° ± 4.12e-05
Arg. of Perihelion (ω)270.19800377° ± 4.19e-05
Mean Anomaly (M)312.23704406° ± 3.10e-06
Mean Motion (n)0.4582249348°/day ± 3.90e-10
Perihelion dist (q)0.96097949 AU ± 1.75e-08
Aphelion dist (Q)2.37163978 AU ± 1.75e-08
Orbital Period2.15096606 yr ± 1.83e-09
Physical Parameters
H (abs. magnitude)19.50
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.402″
Uncertainty0
Orbit TypeApollo
MOID0.032518 AU
Observations Used454
Radar Obs Used1
Oppositions1
Arc Total2004-2025
First Observation Used2004-05-15
Last Observation Used2025-03-01
Observations (486)
Date Type RA Dec Mag Band Observatory
2004-06-14 05:52:46 C 15 31 09.67 -20 41 45.1 18.9 c 704
2004-06-14 06:07:06 C 15 31 08.16 -20 41 45.3 18.7 c 704
2004-06-14 06:21:27 C 15 31 06.67 -20 41 44.5 19.2 c 704
2004-06-16 05:20:55 C 15 26 29.13 -20 41 53.4 18.7 c 704
2004-06-16 05:34:46 C 15 26 27.65 -20 41 52.1 20.2 c 704
2004-06-16 05:48:53 C 15 26 26.17 -20 41 53.0 19.2 c 704
2004-06-16 06:03:19 C 15 26 24.64 -20 41 53.4 18.9 c 704
2004-06-16 06:18:13 C 15 26 23.03 -20 41 53.0 19.1 c 704
2004-06-17 21:24:26 C 15 22 32.76 -20 42 12.6 r 151
2004-06-17 21:27:50 C 15 22 32.40 -20 42 13.1 r 151
2004-06-17 21:28:55 C 15 22 32.36 -20 42 13.3 r 151
2004-06-19 23:49:51 C 15 17 37.77 -20 42 19.8 r 859
2004-06-19 23:55:50 C 15 17 37.09 -20 42 19.9 r 859
2004-06-20 00:01:50 C 15 17 36.56 -20 42 20.0 r 859
2004-06-20 23:52:21 C 15 15 18.26 -20 42 45.5 r 859
2004-06-21 00:02:13 C 15 15 17.42 -20 42 45.9 r 859
2004-06-21 11:01:27 C 15 14 13.83 -20 42 55.4 r 428
2004-06-21 11:08:17 C 15 14 13.13 -20 42 55.7 r 428
2004-06-21 11:12:00 C 15 14 12.74 -20 42 55.6 r 428
2004-06-23 12:13:08 C 15 09 33.07 -20 44 14.9 r E12
2004-06-23 12:26:09 C 15 09 31.76 -20 44 14.3 r E12
2004-06-23 12:39:10 C 15 09 30.44 -20 44 15.4 r E12
2004-06-23 12:52:16 C 15 09 29.11 -20 44 15.8 r E12
2004-06-25 23:16:07 C 15 04 06.67 -20 46 50.5 r 859
2004-06-25 23:21:59 C 15 04 06.00 -20 46 49.2 r 859
2004-06-27 04:41:14 C 15 01 27.57 -20 48 53.9 c 670
2004-06-27 06:10:53 C 15 01 18.68 -20 48 58.8 c 670
2004-07-06 04:11:19 C 14 43 44.04 -21 10 34.5 r 448
2004-07-06 04:24:09 C 14 43 42.91 -21 10 36.0 r 448
2004-07-06 04:55:48 C 14 43 40.27 -21 10 40.0 r 448
2004-07-07 21:45:25 C 14 40 40.33 -21 17 07.9 c 952
2004-07-07 21:47:27 C 14 40 40.19 -21 17 08.2 c 952
2004-07-07 21:49:31 C 14 40 39.94 -21 17 08.9 c 952
2004-07-07 21:51:33 C 14 40 39.75 -21 17 09.2 c 952
2004-07-12 11:51:23 C 14 33 07.930 -21 38 12.38 r 413
2004-07-12 11:54:03 C 14 33 07.739 -21 38 12.96 r 413
2004-07-12 11:56:42 C 14 33 07.538 -21 38 13.38 r 413
2004-07-16 12:47:39 C 14 27 07.019 -22 03 16.15 r 413
2004-07-16 12:50:19 C 14 27 06.845 -22 03 16.88 r 413
2004-07-19 10:24:47 C 14 23 07.307 -22 25 13.44 r 413
2004-07-19 10:27:27 C 14 23 07.124 -22 25 14.27 r 413
2004-07-19 10:30:06 C 14 23 06.950 -22 25 15.07 r 413
2004-08-24 09:52:57 C 12 51 32.110 -32 16 05.54 r 413
2004-08-24 09:59:27 C 12 51 30.162 -32 16 10.21 r 413
2004-09-26 17:59:27 C 06 26 29.243 -00 20 32.85 r 413
2004-09-26 17:59:58 C 06 26 29.118 -00 20 31.46 r 413
2004-09-26 18:00:28 C 06 26 28.988 -00 20 30.07 r 413
2004-09-26 18:02:54 C 06 26 28.406 -00 20 23.63 r 413
2004-09-26 18:03:24 C 06 26 28.265 -00 20 22.24 r 413
2004-09-26 18:03:55 C 06 26 28.146 -00 20 21.04 r 413
Radar Observations (1)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2004-10-05 09:21:00 -78944 0.5 Hz 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)