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
2019-05-03 08:35:31 C 14 59 18.62 -14 34 16.1 V G96
2019-05-03 08:42:51 C 14 59 18.11 -14 34 14.7 V G96
2019-05-04 16:19:53 C 14 57 06.43 -14 26 47.1 q D29
2019-05-04 16:40:16 C 14 57 04.83 -14 26 41.9 q D29
2019-05-04 17:00:37 C 14 57 03.40 -14 26 37.9 q D29
2019-05-04 23:46:28 C 14 56 34.86 -14 25 02.7 V C95
2019-05-05 00:03:48 C 14 56 33.67 -14 24 58.2 V C95
2019-05-28 03:34:52 C 14 13 05.14 -11 58 37.1 V G96
2019-05-28 03:42:40 C 14 13 04.50 -11 58 35.1 V G96
2019-05-28 03:50:28 C 14 13 03.92 -11 58 33.6 V G96
2019-05-28 03:58:15 C 14 13 03.30 -11 58 31.7 V G96
2019-10-23 05:53:41 C 20 17 34.63 -27 39 48.7 V T08
2019-10-23 05:58:23 C 20 17 36.36 -27 39 42.7 V T08
2019-10-23 06:07:10 C 20 17 39.56 -27 39 30.5 V T08
2019-10-23 06:17:09 C 20 17 43.18 -27 39 17.6 V T08
2019-10-23 06:27:07 C 20 17 46.87 -27 39 03.7 V T08
2019-10-23 06:48:32 C 20 17 54.81 -27 38 34.7 V T08
2019-10-25 06:28:55 C 20 35 53.08 -26 30 14.9 V T05
2019-10-25 06:32:56 C 20 35 54.52 -26 30 08.5 V T05
2019-10-25 06:40:56 C 20 35 57.44 -26 29 55.9 V T05
2019-10-25 06:54:58 C 20 36 02.58 -26 29 34.2 V T05
2019-10-27 07:17:57 C 20 54 07.43 -25 10 38.5 V T08
2019-10-27 07:22:41 C 20 54 09.12 -25 10 30.5 V T08
2019-10-27 07:30:08 C 20 54 11.86 -25 10 17.1 V T08
2019-10-27 07:45:40 C 20 54 17.51 -25 09 49.9 V T08
2019-10-29 06:39:32 C 21 11 32.45 -23 45 12.8 V T05
2019-10-29 06:44:10 C 21 11 34.04 -23 45 04.6 V T05
2019-10-29 06:52:13 C 21 11 36.90 -23 44 48.6 V T05
2019-10-29 07:08:13 C 21 11 42.50 -23 44 18.5 V T05
2019-10-31 06:20:02 C 21 28 38.45 -22 12 17.1 V T08
2019-10-31 06:24:55 C 21 28 40.11 -22 12 07.6 V T08
2019-10-31 06:34:52 C 21 28 43.54 -22 11 46.9 V T08
2019-10-31 06:52:28 C 21 28 49.56 -22 11 11.3 V T08
2019-11-01 02:18:27 C 21 35 39.55 -21 31 45.2 V 703
2019-11-01 02:26:42 C 21 35 42.35 -21 31 28.6 V 703
2019-11-01 02:34:57 C 21 35 45.10 -21 31 12.5 V 703
2019-11-02 03:21:31 C 21 44 17.64 -20 39 37.1 V G96
2019-11-02 03:29:06 C 21 44 20.17 -20 39 21.0 V G96
2019-11-02 03:36:38 C 21 44 22.67 -20 39 05.1 V G96
2019-11-02 03:44:14 C 21 44 25.19 -20 38 49.0 V G96
2019-11-03 09:40:14 C 21 54 30.87 -19 34 26.0 q E89
2019-11-03 10:01:51 C 21 54 37.75 -19 33 40.1 q E89
2019-11-03 10:29:53 C 21 54 47.03 -19 32 37.7 q E89
2019-11-09 01:52:17 C 22 36 59.63 -14 36 46.7 u H21
2019-11-09 01:52:42 C 22 36 59.75 -14 36 45.7 u H21
2019-11-09 01:55:48 C 22 37 00.63 -14 36 38.8 u H21
2019-11-09 01:58:55 C 22 37 01.50 -14 36 32.1 u H21
2019-11-09 02:02:01 C 22 37 02.36 -14 36 25.3 u H21
2019-11-09 02:05:07 C 22 37 03.26 -14 36 18.1 u H21
2019-11-09 02:07:23 C 22 37 03.88 -14 36 13.2 u H21
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)