162082 (1998 HL1)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.1870537926 ± 6.25e-09
Semi-major axis (a)1.2463126196 AU ± 1.11e-09
Inclination (i)20.05270125° ± 2.99e-06
Long. of Asc. Node (Ω)213.52466269° ± 5.75e-07
Arg. of Perihelion (ω)148.66798461° ± 4.65e-06
Mean Anomaly (M)151.55597205° ± 2.45e-06
Mean Motion (n)0.7083889652°/day ± 9.47e-10
Perihelion dist (q)1.01318512 AU ± 7.85e-09
Aphelion dist (Q)1.47944012 AU ± 7.90e-09
Orbital Period1.39136312 yr ± 1.86e-09
Physical Parameters
H (abs. magnitude)19.12
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.544″
Uncertainty0
Orbit TypeApollo
MOID0.040068 AU
Observations Used2079
Radar Obs Used4
Oppositions6
Arc Total1998-2023
First Observation Used1998-04-18
Last Observation Used2023-12-03
Observations (2821)
Date Type RA Dec Mag Band Observatory
2023-04-21 05:49:50 C 11 19 40.994 -11 38 39.70 V 703
2023-04-21 05:57:34 C 11 19 40.897 -11 38 28.00 V 703
2023-04-21 06:05:17 C 11 19 40.717 -11 38 14.39 V 703
2023-04-24 06:00:30 C 11 18 58.156 -09 42 56.76 U F52
2023-04-24 06:17:14 C 11 18 57.981 -09 42 30.61 U F52
2023-04-24 06:33:59 C 11 18 57.801 -09 42 04.45 U F52
2023-04-24 06:50:47 C 11 18 57.626 -09 41 38.24 U F52
2023-05-11 06:17:35 C 11 23 59.506 -00 49 33.87 X F52
2023-05-11 06:34:22 C 11 23 59.924 -00 49 16.65 X F52
2023-05-11 06:51:06 C 11 24 00.357 -00 48 59.14 X F52
2023-05-22 04:38:17 C 11 33 56.700 +02 58 06.46 V G96
2023-05-22 04:46:30 C 11 33 57.053 +02 58 12.14 V G96
2023-05-22 04:54:42 C 11 33 57.395 +02 58 17.83 V G96
2023-05-22 05:02:56 C 11 33 57.773 +02 58 23.81 V G96
2023-06-08 04:33:34 C 11 56 51.486 +06 23 02.51 V G96
2023-06-08 04:40:58 C 11 56 51.889 +06 23 05.32 V G96
2023-06-08 04:48:22 C 11 56 52.339 +06 23 07.87 V G96
2023-06-08 04:55:47 C 11 56 52.861 +06 23 10.25 V G96
2023-12-03 04:54:23 C 20 38 10.275 -09 20 05.82 X F51
2023-12-03 05:00:52 C 20 38 11.469 -09 20 06.12 X F51
2023-12-03 05:13:48 C 20 38 13.867 -09 20 07.09 X F51
Radar Observations (4)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2019-10-25 03:44:00 41592955.7 4 us 2380 -1 -1
2019-10-26 04:26:00 41536962.8 0.4 us 2380 -1 -1
2019-10-26 05:12:00 -15753.3965 0.14 Hz 2380 -1 -1
2019-10-27 05:09:00 42561492 0.4 us 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)