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
2021-12-24 01:20:15 C 01 03 55.12 +34 55 15.5 V W46
2021-12-24 01:26:17 C 01 03 54.73 +34 54 49.1 V W46
2021-12-25 05:17:08 C 01 02 44.39 +33 01 34.6 V T08
2021-12-25 05:22:27 C 01 02 44.15 +33 01 13.7 V T08
2021-12-25 05:52:39 C 01 02 42.28 +32 59 15.3 V T08
2021-12-25 06:03:55 C 01 02 41.61 +32 58 30.9 V T08
2021-12-26 10:24:02 S 01 01 44.904 +31 12 52.88 L C51
2021-12-26 18:14:22 S 01 01 31.555 +30 45 21.20 L C51
2021-12-26 21:22:30 S 01 01 26.474 +30 34 32.56 L C51
2021-12-27 03:41:37 C 01 01 15.89 +30 13 05.4 V 703
2021-12-27 03:49:50 C 01 01 15.54 +30 12 36.9 V 703
2021-12-27 03:58:03 C 01 01 15.18 +30 12 09.9 V 703
2021-12-27 04:06:15 C 01 01 14.85 +30 11 40.5 V 703
2021-12-28 17:59:58 C 01 00 29.67 +28 11 19.1 X B88
2021-12-28 18:29:45 C 01 00 28.77 +28 09 49.9 X B88
2021-12-28 19:01:36 C 01 00 27.79 +28 08 14.4 X B88
2021-12-30 17:56:20 C 00 59 52.80 +25 57 38.5 V 130
2021-12-30 18:13:37 C 00 59 52.36 +25 56 53.5 V 130
2022-01-06 02:11:14 C 00 59 46.46 +20 35 20.1 V G96
2022-01-06 02:19:25 C 00 59 46.40 +20 35 05.5 V G96
2022-01-06 02:27:37 C 00 59 46.37 +20 34 51.4 V G96
2022-01-06 02:35:48 C 00 59 46.32 +20 34 37.1 V G96
2022-01-15 05:31:47 C 01 01 45.084 +15 37 20.03 U F52
2022-01-15 05:47:26 C 01 01 45.114 +15 37 02.74 U F52
2022-01-15 06:03:12 C 01 01 45.138 +15 36 45.39 U F52
2022-01-15 06:18:52 C 01 01 45.154 +15 36 28.28 U F52
2022-01-16 18:13:39 C 01 02 07.91 +14 58 38.4 X B88
2022-01-16 18:53:02 C 01 02 07.95 +14 57 58.0 X B88
2022-01-16 19:32:28 C 01 02 08.21 +14 57 17.0 X B88
2022-01-21 05:27:13 C 01 03 04.907 +13 18 01.95 U F52
2022-01-21 05:45:38 C 01 03 04.898 +13 17 45.70 U F52
2022-01-21 06:04:04 C 01 03 04.912 +13 17 29.21 U F52
2022-01-21 06:22:32 C 01 03 04.912 +13 17 12.69 U F52
2025-11-28 12:39:08 C 11 15 23.717 +10 37 38.17 V V06
2025-11-28 12:42:59 C 11 15 24.282 +10 37 34.03 V V06
2025-11-28 12:46:51 C 11 15 24.840 +10 37 30.04 V V06
2025-12-16 04:59:54 C 12 37 10.265 +00 33 26.40 X 033
2025-12-16 05:03:46 C 12 37 11.186 +00 33 19.10 X 033
2025-12-17 04:54:38 C 12 43 09.257 -00 12 26.00 X 033
2025-12-17 04:58:25 C 12 43 10.186 -00 12 33.40 X 033
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)