2003 HN16

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2109504959 ± 2.92e-08
Semi-major axis (a)1.2885223155 AU ± 4.42e-10
Inclination (i)26.19019209° ± 1.63e-05
Long. of Asc. Node (Ω)215.44405413° ± 1.91e-06
Arg. of Perihelion (ω)339.11329202° ± 2.81e-05
Mean Anomaly (M)168.80565502° ± 1.97e-05
Mean Motion (n)0.6738672647°/day ± 3.46e-10
Perihelion dist (q)1.01670789 AU ± 3.76e-08
Aphelion dist (Q)1.56033674 AU ± 3.76e-08
Orbital Period1.46264158 yr ± 7.52e-10
Physical Parameters
H (abs. magnitude)22.16
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.467″
Uncertainty0
Orbit TypeApollo
MOID0.021781 AU
Observations Used83
Radar Obs Used3
Oppositions1
Arc Total2003-2025
First Observation Used2003-04-27
Last Observation Used2025-08-31
Observations (88)
Date Type RA Dec Mag Band Observatory
2003-04-27 03:18:23 C 09 43 14.83 -03 37 16.5 17.3 c 704
2003-04-27 03:52:12 C 09 43 39.12 -03 25 53.7 17.2 c 704
2003-04-27 04:09:11 C 09 43 51.40 -03 20 09.9 17.4 c 704
2003-04-27 04:26:13 C 09 44 03.69 -03 14 25.3 17.7 c 704
2003-04-27 20:02:24 C 09 56 04.57 +02 04 20.3 c 587
2003-04-27 20:03:50 C 09 56 05.55 +02 04 50.1 c 587
2003-04-27 20:48:37 C 09 56 39.44 +02 20 28.4 d 620
2003-04-27 20:55:14 C 09 56 44.30 +02 22 44.2 d 620
2003-04-27 21:01:52 C 09 56 49.21 +02 25 00.6 d 620
2003-04-28 03:07:18 C 10 01 37.06 +04 30 59.7 c 926
2003-04-28 03:07:43 C 10 01 37.34 +04 31 08.9 c 926
2003-04-28 03:08:09 C 10 01 37.76 +04 31 17.7 c 926
2003-04-28 03:08:35 C 10 01 38.01 +04 31 28.2 c 926
2003-04-28 03:09:01 C 10 01 38.27 +04 31 35.9 c 926
2003-04-28 04:46:24 C 10 02 50.37 +05 05 01.3 c 854
2003-04-28 04:48:28 C 10 02 51.95 +05 05 40.1 c 854
2003-04-28 04:49:29 C 10 02 52.69 +05 06 04.0 c 854
2003-04-28 05:02:42 C 10 03 05.13 +05 09 56.7 c 658
2003-04-28 05:03:08 C 10 03 05.40 +05 10 06.2 c 658
2003-04-28 05:03:34 C 10 03 05.76 +05 10 15.7 c 658
2003-04-28 05:04:01 C 10 03 06.13 +05 10 24.2 c 658
2003-04-28 05:04:28 C 10 03 06.52 +05 10 33.9 c 658
2003-04-28 22:21:10 C 10 16 40.53 +11 02 46.6 o J95
2003-04-28 22:26:05 C 10 16 44.30 +11 04 24.9 o J95
2003-04-28 22:31:06 C 10 16 48.15 +11 06 04.8 o J95
2003-04-28 22:37:31 C 10 16 53.09 +11 08 13.6 o J95
2003-04-28 22:42:51 C 10 16 57.18 +11 10 00.2 o J95
2003-04-28 22:47:16 C 10 17 00.55 +11 11 28.6 o J95
2003-04-29 03:21:04 C 10 20 41.60 +12 43 21.1 17.7 c 704
2003-04-29 03:38:19 C 10 20 54.58 +12 49 03.3 18.1 c 704
2003-04-29 03:55:38 C 10 21 07.61 +12 54 45.1 17.6 c 704
2003-04-29 04:13:02 C 10 21 20.72 +13 00 28.4 17.6 c 704
2003-04-29 04:30:32 C 10 21 33.96 +13 06 13.0 17.6 c 704
2003-04-30 03:38:07 C 10 40 00.78 +20 24 20.0 c 926
2003-04-30 03:38:32 C 10 40 01.09 +20 24 27.9 c 926
2003-04-30 03:38:57 C 10 40 01.40 +20 24 35.7 c 926
2003-05-01 04:02:45 C 10 59 19.43 +27 14 32.9 c 926
2003-05-01 04:03:10 C 10 59 19.73 +27 14 40.2 c 926
2003-05-01 04:03:36 C 10 59 20.08 +27 14 45.8 c 926
2003-05-01 04:33:34 C 10 59 44.53 +27 21 44.4 c 658
2003-05-01 04:35:18 C 10 59 45.83 +27 22 13.8 c 658
2003-05-01 04:36:09 C 10 59 46.40 +27 22 27.8 c 658
2003-05-03 20:15:56 C 11 47 51.27 +40 24 31.5 c 246
2003-05-03 20:16:22 C 11 47 51.53 +40 24 35.0 c 246
2003-05-03 20:16:55 C 11 47 51.95 +40 24 40.9 c 246
2003-05-03 20:17:26 C 11 47 52.31 +40 24 45.8 c 246
2003-05-03 20:17:58 C 11 47 52.74 +40 24 50.5 c 246
2003-05-03 20:18:36 C 11 47 53.10 +40 24 56.4 c 246
2003-05-03 20:19:07 C 11 47 53.50 +40 25 01.8 c 246
2003-05-03 20:19:38 C 11 47 53.80 +40 25 05.7 c 246
Radar Observations (3)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2003-05-02 00:15:00 -124216.86 3 Hz 2380 -1 -1
2003-05-02 00:28:00 -124740.93 0.3 Hz 2380 -1 -1
2003-05-02 00:51:00 60403706.57 1 us 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)