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
2019-11-25 06:49:31 C 00 07 26.93 -02 06 14.4 V T08
2019-11-25 07:04:52 C 00 07 29.65 -02 05 50.1 V T08
2019-11-29 07:50:42 C 00 24 25.03 +00 19 55.9 V T08
2019-11-29 07:54:43 C 00 24 25.76 +00 20 02.3 V T08
2019-11-29 08:02:17 C 00 24 27.01 +00 20 11.6 V T08
2019-11-29 08:19:12 C 00 24 29.66 +00 20 35.6 V T08
2019-12-12 07:30:46 C 01 09 42.276 +06 33 55.84 U F52
2019-12-12 07:48:06 C 01 09 44.438 +06 34 13.43 U F52
2019-12-12 08:05:18 C 01 09 46.561 +06 34 30.44 U F52
2019-12-12 08:22:31 C 01 09 48.677 +06 34 47.75 U F52
2019-12-20 01:59:06 C 01 32 14.45 +09 24 33.1 V G96
2019-12-20 02:08:00 C 01 32 15.42 +09 24 40.6 V G96
2019-12-20 02:16:56 C 01 32 16.40 +09 24 48.1 V G96
2019-12-20 02:25:52 C 01 32 17.40 +09 24 55.5 V G96
2019-12-20 07:01:07 C 01 32 48.477 +09 28 47.26 U F51
2019-12-20 07:18:22 C 01 32 50.374 +09 29 01.66 U F51
2019-12-20 07:22:30 C 01 32 50.833 +09 29 04.99 U F51
2019-12-20 07:35:43 C 01 32 52.283 +09 29 15.86 U F51
2019-12-20 07:39:44 C 01 32 52.722 +09 29 19.13 U F51
2019-12-20 07:56:51 C 01 32 54.619 +09 29 33.38 U F51
2020-01-28 06:46:31 C 03 05 21.695 +18 33 17.41 U F52
2020-01-28 07:05:32 C 03 05 23.408 +18 33 25.20 U F52
2020-01-28 07:43:36 C 03 05 26.818 +18 33 40.83 U F52
2021-04-03 07:46:24 C 13 10 45.75 -03 45 59.9 V G96
2021-04-03 07:53:44 C 13 10 45.30 -03 45 56.7 V G96
2021-04-03 08:01:06 C 13 10 44.85 -03 45 54.0 V G96
2021-04-06 11:38:11 C 13 06 04.927 -03 18 03.06 U F52
2021-04-06 11:56:38 C 13 06 03.758 -03 17 56.50 U F52
2021-04-06 12:15:04 C 13 06 02.556 -03 17 49.89 U F52
2021-04-10 10:05:22 C 13 00 05.263 -02 42 53.19 U F51
2021-04-10 10:22:32 C 13 00 04.110 -02 42 46.64 U F51
2021-04-10 10:46:15 C 13 00 02.525 -02 42 37.89 U F51
2021-04-10 11:03:27 C 13 00 01.384 -02 42 31.63 U F51
2025-03-01 09:13:56 C 11 08 49.216 +09 40 45.65 X F51
2025-03-01 09:36:45 C 11 08 47.867 +09 40 54.13 X F51
2025-03-01 09:53:44 C 11 08 46.888 +09 41 00.18 X F51
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)