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
2001-12-21 10:35:43 C 11 29 15.82 +28 37 39.3 18.6 c 704
2001-12-21 10:57:13 C 11 29 19.63 +28 38 10.9 18.9 c 704
2001-12-21 11:19:30 C 11 29 23.52 +28 38 44.6 18.9 c 704
2001-12-21 11:40:50 C 11 29 27.23 +28 39 15.6 18.6 c 704
2001-12-21 12:02:46 C 11 29 31.05 +28 39 47.5 18.5 c 704
2001-12-22 09:03:38 C 11 33 54.59 +29 11 14.9 18.2 c 704
2001-12-22 09:25:14 C 11 33 58.96 +29 11 51.7 18.5 c 704
2001-12-22 09:46:54 C 11 34 03.34 +29 12 27.9 18.4 c 704
2001-12-22 10:08:39 C 11 34 07.70 +29 13 04.5 18.6 c 704
2001-12-22 10:30:16 C 11 34 12.05 +29 13 40.9 18.4 c 704
2001-12-22 10:31:27 C 11 34 12.31 +29 13 42.6 17.9 c 704
2001-12-22 10:53:30 C 11 34 16.79 +29 14 18.5 18.9 c 704
2001-12-22 11:15:24 C 11 34 21.03 +29 14 55.3 18.2 c 704
2001-12-22 11:37:18 C 11 34 25.40 +29 15 31.8 18.2 c 704
2001-12-22 11:59:14 C 11 34 29.75 +29 16 07.3 18.0 c 704
2001-12-23 10:40:59 C 11 39 51.89 +29 54 33.2 18.0 c 704
2001-12-23 11:02:58 C 11 39 56.93 +29 55 14.3 18.6 c 704
2001-12-23 11:25:13 C 11 40 02.03 +29 55 55.5 18.0 c 704
2001-12-23 11:47:15 C 11 40 07.03 +29 56 35.9 17.9 c 704
2001-12-23 12:09:19 C 11 40 12.07 +29 57 16.2 18.1 c 704
2001-12-23 23:40:24 C 11 43 16.83 +30 17 55.5 i 587
2001-12-23 23:44:29 C 11 43 17.90 +30 18 04.1 i 587
2001-12-23 23:49:56 C 11 43 19.36 +30 18 16.0 i 587
2001-12-24 02:26:15 C 11 43 59.68 +30 23 33.0 c 046
2001-12-24 02:29:41 C 11 44 00.50 +30 23 39.1 c 046
2001-12-24 02:57:42 C 11 44 07.89 +30 24 35.3 c 046
2001-12-24 03:00:40 C 11 44 08.54 +30 24 41.5 c 046
2001-12-24 03:46:29 C 11 44 19.93 +30 26 13.9 c 461
2001-12-24 03:47:45 C 11 44 20.15 +30 26 16.7 c 461
2001-12-24 03:49:01 C 11 44 20.55 +30 26 19.8 c 461
2001-12-24 04:05:15 C 11 44 24.91 +30 26 50.4 c 118
2001-12-24 04:09:25 C 11 44 25.95 +30 26 58.6 c 118
2001-12-24 04:11:06 C 11 44 26.40 +30 27 01.2 c 118
2001-12-24 11:03:14 C 11 46 24.38 +30 40 56.0 c 649
2001-12-24 11:08:00 C 11 46 25.64 +30 41 05.7 c 649
2001-12-24 11:12:38 C 11 46 26.88 +30 41 15.3 c 649
2001-12-24 11:28:02 C 11 46 31.62 +30 41 36.6 j 918
2001-12-24 11:30:51 C 11 46 32.42 +30 41 42.6 j 918
2001-12-30 12:08:44 C 13 03 52.04 +37 48 11.9 m 333
2001-12-30 12:10:10 C 13 03 53.42 +37 48 18.5 m 333
2001-12-30 12:11:44 C 13 03 54.83 +37 48 24.2 m 333
2001-12-30 12:15:24 C 13 03 58.23 +37 48 38.5 m 333
2001-12-30 12:16:48 C 13 03 59.49 +37 48 44.6 m 333
2001-12-30 12:18:22 C 13 04 00.76 +37 48 50.1 m 333
2002-01-04 04:39:30 C 16 19 04.07 +39 45 53.8 c 118
2002-01-04 04:41:45 C 16 19 09.55 +39 45 39.4 c 118
2002-01-04 04:42:27 C 16 19 11.28 +39 45 35.3 c 118
2002-01-04 04:45:04 C 16 19 17.55 +39 45 20.0 c 118
2002-01-04 04:45:47 C 16 19 19.34 +39 45 14.7 c 118
2002-01-04 04:46:31 C 16 19 21.10 +39 45 10.4 c 118
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)