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
2019-11-09 02:10:54 C 22 37 04.87 -14 36 05.4 u H21
2019-11-09 07:13:29 C 22 38 31.93 -14 24 54.2 V T08
2019-11-09 07:18:57 C 22 38 33.47 -14 24 42.1 V T08
2019-11-09 07:28:20 C 22 38 36.11 -14 24 21.8 V T08
2019-11-09 07:45:51 C 22 38 40.96 -14 23 42.8 V T08
2019-11-10 06:08:23 S 22 45 03.559 -13 34 38.32 L C51
2019-11-10 09:16:53 S 22 45 56.366 -13 27 48.71 L C51
2019-11-10 12:25:13 S 22 46 48.898 -13 21 00.79 L C51
2019-11-10 15:33:32 S 22 47 41.261 -13 14 11.94 L C51
2019-11-10 15:33:43 S 22 47 41.342 -13 14 13.24 L C51
2019-11-10 17:07:47 S 22 48 07.428 -13 10 49.48 L C51
2019-11-10 18:42:02 S 22 48 33.514 -13 07 24.74 L C51
2019-11-10 20:16:17 S 22 48 59.640 -13 04 01.92 L C51
2019-11-10 21:50:21 S 22 49 25.550 -13 00 38.81 L C51
2019-11-10 23:24:36 S 22 49 51.482 -12 57 13.86 L C51
2019-11-11 00:58:51 S 22 50 17.42 -12 53 51.4 L C51
2019-11-11 02:33:06 S 22 50 43.33 -12 50 28.3 L C51
2019-11-11 05:41:25 S 22 51 34.84 -12 43 43.0 L C51
2019-11-11 08:49:44 S 22 52 26.31 -12 36 57.2 L C51
2019-11-11 08:49:55 S 22 52 26.24 -12 36 57.8 L C51
2019-11-11 11:58:14 S 22 53 17.39 -12 30 13.0 L C51
2019-11-11 15:06:33 S 22 54 08.402 -12 23 29.18 L C51
2019-11-12 05:23:29 C 22 57 58.521 -11 53 15.97 U F52
2019-11-12 05:43:03 C 22 58 03.538 -11 52 34.51 U F52
2019-11-12 06:02:42 C 22 58 08.605 -11 51 52.57 U F52
2019-11-12 06:22:12 C 22 58 13.607 -11 51 11.10 U F52
2019-11-12 06:35:37 C 22 58 17.052 -11 50 42.62 U F52
2019-11-12 06:51:27 C 22 58 21.087 -11 50 08.99 U F52
2019-11-12 07:07:13 C 22 58 25.131 -11 49 35.41 U F52
2019-11-13 07:56:55 C 23 04 53.83 -10 57 13.1 V T08
2019-11-13 08:01:39 C 23 04 55.01 -10 57 03.7 V T08
2019-11-13 08:09:13 C 23 04 56.88 -10 56 46.8 V T08
2019-11-13 08:24:51 C 23 05 00.82 -10 56 14.5 V T08
2019-11-15 07:46:25 C 23 16 51.60 -09 18 49.4 V T05
2019-11-15 07:51:48 C 23 16 52.88 -09 18 38.4 V T05
2019-11-15 08:01:37 C 23 16 55.20 -09 18 18.0 V T05
2019-11-15 08:18:44 C 23 16 59.20 -09 17 43.3 V T05
2019-11-18 05:36:23 C 23 33 07.70 -07 01 49.5 V 703
2019-11-18 05:44:39 C 23 33 09.49 -07 01 34.6 V 703
2019-11-18 05:52:55 C 23 33 11.29 -07 01 18.2 V 703
2019-11-18 06:01:09 C 23 33 13.17 -07 01 03.0 V 703
2019-11-21 07:45:48 C 23 48 59.57 -04 45 44.7 V T08
2019-11-21 07:49:49 C 23 49 00.36 -04 45 37.2 V T08
2019-11-21 07:57:47 C 23 49 01.94 -04 45 23.3 V T08
2019-11-21 08:16:31 C 23 49 05.62 -04 44 50.1 V T08
2019-11-23 04:17:43 C 23 57 53.08 -03 29 02.7 V 703
2019-11-23 04:26:02 C 23 57 54.54 -03 28 48.9 V 703
2019-11-23 04:42:39 C 23 57 57.74 -03 28 21.4 V 703
2019-11-25 06:37:20 C 00 07 24.77 -02 06 33.9 V T08
2019-11-25 06:42:06 C 00 07 25.61 -02 06 26.2 V T08
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)