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
2004-11-10 14:26:16 C 04 10 46.20 +17 44 29.2 17.9 c 608
2004-11-10 14:41:32 C 04 10 44.69 +17 44 32.8 17.7 c 608
2004-11-12 07:44:29 C 04 07 07.52 +17 55 12.6 d 703
2004-11-12 07:53:51 C 04 07 06.62 +17 55 14.9 d 703
2004-11-12 08:03:14 C 04 07 05.71 +17 55 17.3 d 703
2004-11-12 08:12:40 C 04 07 04.81 +17 55 19.3 d 703
2004-11-15 20:43:29 C 04 00 04.32 +18 14 21.4 17.3 r 469
2004-11-15 20:50:29 C 04 00 03.75 +18 14 23.0 17.4 r 469
2004-11-15 20:58:30 C 04 00 03.05 +18 14 24.8 17.3 r 469
2004-11-15 21:06:45 C 04 00 02.39 +18 14 26.8 17.1 r 469
2004-11-15 21:15:14 C 04 00 01.58 +18 14 28.9 o 151
2004-11-15 21:16:22 C 04 00 01.51 +18 14 29.2 o 151
2004-11-15 21:17:21 C 04 00 01.42 +18 14 29.4 o 151
2004-11-15 21:18:32 C 04 00 01.31 +18 14 29.6 o 151
2004-11-15 21:19:28 C 04 00 01.25 +18 14 29.7 o 151
2004-11-15 21:20:34 C 04 00 01.14 +18 14 30.1 o 151
2004-11-15 21:21:34 C 04 00 01.07 +18 14 30.3 o 151
2004-11-15 21:22:33 C 04 00 00.98 +18 14 30.4 o 151
2004-11-16 21:04:01 C 03 58 10.61 +18 19 19.4 c A48
2004-11-16 21:13:14 C 03 58 09.87 +18 19 20.7 c A48
2004-11-16 21:22:26 C 03 58 09.11 +18 19 22.6 c A48
2004-11-16 22:37:30 C 03 58 02.92 +18 19 40.2 c 108
2004-11-16 22:40:40 C 03 58 02.54 +18 19 39.6 c 108
2004-11-16 22:45:00 C 03 58 02.22 +18 19 40.5 c 108
2004-11-16 22:48:19 C 03 58 01.92 +18 19 41.6 c 108
2004-11-17 07:44:15 C 03 57 20.44 +18 21 29.5 r H41
2004-11-17 07:46:41 C 03 57 20.24 +18 21 30.0 r H41
2004-11-17 07:48:37 C 03 57 20.06 +18 21 30.1 r H41
2004-11-17 07:50:34 C 03 57 19.89 +18 21 30.4 r H41
2004-11-17 21:39:22 C 03 56 19.53 +18 24 03.5 17.7 c A57
2004-11-17 22:06:36 C 03 56 17.33 +18 24 09.1 17.4 c A57
2004-11-17 22:23:25 C 03 56 15.98 +18 24 12.5 17.5 c A57
2004-11-18 05:55:35 C 03 55 42.87 +18 25 39.9 17.9 c 704
2004-11-18 06:13:10 C 03 55 41.50 +18 25 42.9 17.9 c 704
2004-11-18 06:30:48 C 03 55 40.07 +18 25 46.6 18.0 c 704
2004-11-18 06:48:23 C 03 55 38.61 +18 25 49.0 18.3 c 704
2004-11-19 11:29:16 C 03 53 35.34 +18 31 06.1 18.6 c 608
2004-11-19 11:44:36 C 03 53 34.11 +18 31 08.9 18.4 c 608
2004-11-19 12:00:25 C 03 53 32.88 +18 31 11.4 18.0 c 608
2004-11-19 21:40:14 C 03 52 54.30 +18 32 38.4 17.7 r 130
2004-11-19 21:45:09 C 03 52 53.94 +18 32 39.2 17.6 r 130
2004-11-19 21:48:47 C 03 52 53.65 +18 32 39.8 17.5 r 130
2004-11-19 21:55:18 C 03 52 53.16 +18 32 41.3 17.7 r 130
2004-11-19 21:58:56 C 03 52 52.91 +18 32 41.8 17.6 r 130
2004-11-20 06:38:49 C 03 52 17.23 +18 34 15.9 17.3 c 704
2004-11-20 06:56:37 C 03 52 15.84 +18 34 19.7 17.2 c 704
2004-11-20 07:14:26 C 03 52 14.52 +18 34 22.3 17.8 c 704
2004-11-20 22:27:31 C 03 51 14.08 +18 36 47.4 d A56
2004-11-20 22:40:59 C 03 51 13.03 +18 36 49.4 d A56
2004-11-20 22:49:36 C 03 51 12.40 +18 36 50.9 d A56
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)