480883 (2001 YE4)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5404290509 ± 2.00e+00
Semi-major axis (a)0.6768702883 AU ± 3.00e+00
Inclination (i)4.85305970° ± 4.00e+00
Long. of Asc. Node (Ω)305.31872874° ± 5.00e+00
Arg. of Perihelion (ω)318.99423011° ± 6.00e+00
Mean Anomaly (M)193.15683328° ± 7.94e-06
Mean Motion (n)1.7699218872°/day ± 1.18e+01
Perihelion dist (q)0.31106992 AU ± 1.93e+00
Aphelion dist (Q)1.04267066 AU ± 4.82e+00
Orbital Period0.55687558 yr ± 3.70e+00
NGA Modelr2
A2-6.98415303e-06 AU/d²
Physical Parameters
H (abs. magnitude)20.90
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-28
RMS Residual0.318″
Uncertainty0
Orbit TypeAten
MOID0.031209 AU
Observations Used400
Oppositions19
Arc Total2001-2025
First Observation Used2001-12-21
Last Observation Used2025-12-17
Observations (440)
Date Type RA Dec Mag Band Observatory
2016-11-17 10:59:57 C 10 59 49.76 +30 35 30.7 U V37
2016-11-17 11:01:59 C 10 59 49.65 +30 35 34.4 U V37
2016-11-17 11:04:01 C 10 59 49.54 +30 35 37.6 U V37
2016-11-17 11:06:03 C 10 59 49.44 +30 35 41.0 U V37
2016-11-17 11:08:05 C 10 59 49.29 +30 35 44.8 U V37
2016-11-17 11:10:07 C 10 59 49.18 +30 35 48.3 U V37
2016-12-06 08:22:29 C 09 56 04.12 +54 03 05.7 U V37
2016-12-06 08:23:34 C 09 56 03.63 +54 03 11.4 U V37
2016-12-06 08:24:40 C 09 56 03.16 +54 03 17.5 U V37
2016-12-06 08:32:19 C 09 55 59.76 +54 03 59.4 U V37
2016-12-06 08:33:24 C 09 55 59.27 +54 04 05.4 U V37
2016-12-06 08:34:29 C 09 55 58.79 +54 04 11.4 U V37
2016-12-06 08:35:36 C 09 55 58.30 +54 04 17.4 U V37
2016-12-06 08:37:47 C 09 55 57.33 +54 04 29.3 U V37
2016-12-06 08:39:58 C 09 55 56.33 +54 04 41.3 U V37
2016-12-06 08:41:03 C 09 55 55.87 +54 04 47.2 U V37
2016-12-08 08:32:47 C 09 31 09.94 +58 28 13.7 R G45
2016-12-08 08:39:41 C 09 31 05.36 +58 28 53.7 R G45
2016-12-08 08:53:41 C 09 30 56.12 +58 30 16.2 R G45
2016-12-08 09:00:30 C 09 30 51.56 +58 30 55.4 R G45
2016-12-08 09:00:35 C 09 30 51.52 +58 30 56.2 R G45
2016-12-13 02:16:49 C 07 27 20.71 +68 09 15.7 U 204
2016-12-13 02:19:02 C 07 27 16.86 +68 09 22.8 U 204
2016-12-13 02:21:14 C 07 27 13.01 +68 09 30.1 U 204
2016-12-13 02:23:28 C 07 27 09.17 +68 09 37.3 U 204
2016-12-13 02:25:41 C 07 27 05.32 +68 09 44.5 U 204
2016-12-14 07:43:19 C 06 33 35.76 +69 17 38.8 u H21
2016-12-14 07:45:23 C 06 33 31.62 +69 17 40.9 u H21
2016-12-14 07:47:27 C 06 33 27.41 +69 17 43.6 u H21
2016-12-14 07:49:31 C 06 33 23.29 +69 17 45.8 u H21
2016-12-14 07:51:35 C 06 33 19.11 +69 17 48.0 u H21
2016-12-14 07:53:39 C 06 33 14.93 +69 17 50.3 u H21
2016-12-14 07:55:43 C 06 33 10.78 +69 17 52.5 u H21
2016-12-14 07:57:47 C 06 33 06.62 +69 17 54.8 u H21
2016-12-14 07:59:51 C 06 33 02.46 +69 17 57.1 u H21
2016-12-14 08:01:56 C 06 32 58.30 +69 17 59.3 u H21
2016-12-14 08:03:59 C 06 32 54.14 +69 18 01.5 u H21
2016-12-14 08:06:03 C 06 32 49.97 +69 18 03.6 u H21
2016-12-14 08:08:07 C 06 32 45.81 +69 18 05.6 u H21
2016-12-14 08:10:11 C 06 32 41.65 +69 18 08.0 u H21
2016-12-14 08:12:15 C 06 32 37.47 +69 18 09.9 u H21
2016-12-14 08:14:19 C 06 32 33.33 +69 18 12.0 u H21
2016-12-14 08:16:23 C 06 32 29.12 +69 18 14.2 u H21
2016-12-14 08:18:27 C 06 32 25.01 +69 18 16.4 u H21
2016-12-14 08:20:31 C 06 32 20.82 +69 18 18.7 u H21
2016-12-14 08:22:35 C 06 32 16.68 +69 18 20.7 u H21
2016-12-14 08:24:39 C 06 32 12.49 +69 18 22.7 u H21
2016-12-14 08:26:56 C 06 32 07.91 +69 18 25.2 u H21
2016-12-15 04:42:55 C 05 52 01.57 +69 23 42.7 u H21
2016-12-15 04:44:52 C 05 51 57.54 +69 23 42.0 u H21
Radar Observations (7)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2002-01-10 16:45:00 -151398.2486 0.5 Hz 2380 -1 -1
2002-01-10 16:58:00 51515139.22 4 us 2380 -1 -1
2012-01-04 22:21:00 87498216.95 4 us 2380 -1 -1
2012-01-04 22:39:00 87547021.7 1 us 2380 -1 -1
2012-01-05 21:30:00 91354683.07 0.2 us 2380 -1 -1
2016-12-28 23:11:00 110231311.88 0.5 us 2380 -1 -1
2016-12-29 23:10:00 114387465.49 0.5 us 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)