452302 (1995 YR1)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.8268018692 ± 9.97e-09
Semi-major axis (a)1.6981635829 AU ± 5.43e-09
Inclination (i)3.58174276° ± 2.64e-06
Long. of Asc. Node (Ω)106.51518275° ± 1.64e-05
Arg. of Perihelion (ω)110.03233783° ± 1.64e-05
Mean Anomaly (M)153.91979396° ± 7.93e-06
Mean Motion (n)0.4453925940°/day ± 2.14e-09
Perihelion dist (q)0.29411876 AU ± 1.70e-08
Aphelion dist (Q)3.10220841 AU ± 1.96e-08
Orbital Period2.21293820 yr ± 1.06e-08
Physical Parameters
H (abs. magnitude)20.23
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.271″
Uncertainty0
Orbit TypeApollo
MOID0.014075 AU
Observations Used201
Radar Obs Used4
Oppositions11
Arc Total1995-2020
First Observation Used1995-12-22
Last Observation Used2020-10-11
Observations (223)
Date Type RA Dec Mag Band Observatory
1995-12-20 03:27:54 c 03 39 47.18 +14 16 58.1 i 691
1995-12-20 03:58:49 c 03 39 40.55 +14 16 38.9 i 691
1995-12-20 04:29:30 c 03 39 33.92 +14 16 20.4 i 691
1995-12-22 05:04:40 c 03 29 12.80 +13 45 19.2 i 691
1995-12-22 05:32:00 c 03 29 06.90 +13 45 01.1 i 691
1995-12-22 05:37:33 c 03 29 05.60 +13 44 57.6 i 691
1995-12-25 03:17:18 c 03 14 01.96 +12 57 35.1 i 691
1995-12-25 03:27:40 c 03 13 59.69 +12 57 27.7 i 691
1995-12-25 03:38:12 c 03 13 57.36 +12 57 20.3 i 691
1996-01-19 02:56:54 C 01 14 42.04 +05 33 03.9 i 691
1996-01-19 03:11:25 C 01 14 39.61 +05 32 54.2 i 691
1996-01-19 03:23:49 C 01 14 37.42 +05 32 44.1 i 691
1998-09-19 08:30:49 C 01 21 47.342 +01 11 45.11 645
1998-09-19 08:35:36 C 01 21 46.841 +01 11 42.18 645
1998-09-25 07:52:48 C 01 07 21.492 -00 17 40.85 645
1998-09-25 07:57:34 C 01 07 21.005 -00 17 43.48 645
2009-09-26 09:01:29 C 00 33 29.95 -04 55 53.3 r G96
2009-09-26 09:10:29 C 00 33 28.87 -04 55 59.6 r G96
2009-09-26 09:19:28 C 00 33 27.82 -04 56 04.9 r G96
2009-09-26 09:28:22 C 00 33 26.71 -04 56 10.5 r G96
2009-09-27 06:21:05 C 00 31 00.84 -05 09 13.2 r G96
2009-09-27 06:23:05 C 00 31 00.62 -05 09 14.7 r G96
2009-09-27 06:25:11 C 00 31 00.37 -05 09 15.7 r G96
2009-09-27 06:27:12 C 00 31 00.12 -05 09 17.0 r G96
2009-09-27 07:23:13 C 00 30 53.50 -05 09 51.3 c 926
2009-09-27 07:30:08 C 00 30 52.68 -05 09 56.1 c 926
2009-09-27 08:10:44 C 00 30 47.80 -05 10 23.6 r 682
2009-09-27 08:57:59 C 00 30 42.41 -05 10 49.3 r 682
2009-10-09 08:06:19 C 00 02 30.52 -07 27 45.6 o 291
2009-10-09 08:14:47 C 00 02 29.89 -07 27 48.7 o 291
2009-10-09 08:22:54 C 00 02 29.17 -07 27 50.3 o 291
2015-11-08 07:55:25 C 07 07 09.19 +18 47 47.5 o 291
2015-11-08 08:04:25 C 07 07 09.63 +18 47 45.9 o 291
2015-11-08 08:15:14 C 07 07 10.15 +18 47 43.7 o 291
2015-12-01 11:38:06 C 07 35 43.27 +16 28 48.6 o 691
2015-12-01 11:42:21 C 07 35 43.52 +16 28 47.1 o 691
2015-12-01 11:46:56 C 07 35 43.79 +16 28 45.2 o 691
2015-12-03 10:58:54 C 07 38 57.67 +16 07 35.1 o 691
2015-12-03 11:03:29 C 07 38 58.04 +16 07 32.3 o 691
2015-12-03 11:08:05 C 07 38 58.34 +16 07 30.0 o 691
2015-12-03 19:00:06 C 07 39 32.93 +16 03 38.2 q D29
2015-12-03 19:20:24 C 07 39 34.26 +16 03 28.6 q D29
2015-12-03 19:40:43 C 07 39 35.50 +16 03 15.8 q D29
2015-12-06 20:15:44 C 07 45 30.23 +15 21 45.9 q D29
2015-12-06 20:43:40 C 07 45 32.56 +15 21 27.5 q D29
2015-12-06 21:11:36 C 07 45 34.96 +15 21 08.5 q D29
2015-12-10 02:06:29 C 07 53 46.49 +14 19 48.5 18.4 u J43
2015-12-10 02:20:10 C 07 53 48.09 +14 19 35.1 18.8 u J43
2015-12-10 02:33:51 C 07 53 49.71 +14 19 22.2 18.2 u J43
2015-12-10 02:47:33 C 07 53 51.28 +14 19 08.8 18.5 u J43
Radar Observations (4)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2015-12-18 06:56:00 105625259.84 4 us 2380 -1 -1
2015-12-18 08:14:00 104757886.73 0.5 us 2380 -1 -1
2015-12-22 09:20:00 865924.98 2 Hz 8560 -14 -14
2015-12-22 09:50:00 49589169.844 3 us 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m) -1 Arecibo (305-m, 1963–2020)