152770 (1999 RR28)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6543120088 ± 9.28e-09
Semi-major axis (a)1.8784194769 AU ± 3.83e-10
Inclination (i)7.14320299° ± 4.53e-06
Long. of Asc. Node (Ω)178.13518430° ± 8.20e-06
Arg. of Perihelion (ω)284.60698754° ± 7.23e-06
Mean Anomaly (M)25.02608632° ± 1.23e-06
Mean Motion (n)0.3828453725°/day ± 1.17e-10
Perihelion dist (q)0.64934706 AU ± 1.74e-08
Aphelion dist (Q)3.10749190 AU ± 1.74e-08
Orbital Period2.57447616 yr ± 7.87e-10
Physical Parameters
H (abs. magnitude)18.41
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.465″
Uncertainty0
Orbit TypeApollo
MOID0.016634 AU
Observations Used687
Radar Obs Used7
Oppositions11
Arc Total1987-2023
First Observation Used1987-04-20
Last Observation Used2023-06-08
Observations (722)
Date Type RA Dec Mag Band Observatory
2005-04-07 15:11:11 C 11 15 31.82 +24 05 26.2 r 379
2005-04-07 15:16:07 C 11 15 33.85 +24 05 07.7 r 379
2005-04-09 06:56:32 C 11 30 01.58 +21 50 46.0 r 703
2005-04-09 07:08:11 C 11 30 05.04 +21 50 10.4 r 703
2005-04-09 07:19:57 C 11 30 08.53 +21 49 34.1 r 703
2005-04-09 07:31:41 C 11 30 12.02 +21 48 58.3 r 703
2005-04-09 14:21:00 C 11 32 17.68 +21 28 40.7 r 379
2005-04-09 14:27:35 C 11 32 19.54 +21 28 21.1 r 379
2005-04-09 14:29:15 C 11 32 20.05 +21 28 16.9 r 379
2005-04-09 14:30:53 C 11 32 20.49 +21 28 11.6 r 379
2005-04-09 14:34:11 C 11 32 21.46 +21 28 01.7 r 379
2005-04-10 23:24:46 C 11 41 10.10 +19 59 36.7 o A32
2005-04-10 23:26:24 C 11 41 10.45 +19 59 32.7 o A32
2005-04-10 23:28:01 C 11 41 10.83 +19 59 28.6 o A32
2005-04-10 23:29:36 C 11 41 11.19 +19 59 24.2 o A32
2005-04-12 05:25:02 C 11 47 49.37 +18 50 52.5 15.8 c 704
2005-04-12 05:39:04 C 11 47 52.02 +18 50 22.1 15.8 c 704
2005-04-12 05:53:02 C 11 47 54.65 +18 49 52.3 15.7 c 704
2005-04-12 06:07:15 C 11 47 57.35 +18 49 21.6 16.0 c 704
2005-04-12 06:23:30 C 11 48 00.39 +18 48 46.8 15.9 c 704
2005-04-13 05:20:49 C 11 52 22.49 +18 02 07.5 16.3 c 704
2005-04-13 05:34:52 C 11 52 24.81 +18 01 39.6 17.5 c 704
2005-04-13 05:49:43 C 11 52 27.29 +18 01 11.9 16.6 c 704
2005-04-13 06:03:42 C 11 52 29.61 +18 00 44.8 16.6 c 704
2005-04-13 06:15:23 C 11 52 30.89 +18 00 20.2 r H45
2005-04-13 06:17:27 C 11 52 31.25 +18 00 16.1 r H45
2005-04-13 06:18:18 C 11 52 32.03 +18 00 16.6 16.3 c 704
2005-04-13 06:19:21 C 11 52 31.55 +18 00 12.2 r H45
2005-04-13 06:21:25 C 11 52 31.93 +18 00 08.2 r H45
2005-04-13 06:23:19 C 11 52 32.23 +18 00 04.6 r H45
2005-04-13 12:25:23 C 11 53 37.31 +17 48 37.6 r 379
2005-04-13 12:30:19 C 11 53 38.16 +17 48 28.3 r 379
2005-04-13 20:23:02 C 11 54 58.20 +17 33 48.0 c A48
2005-04-13 20:24:41 C 11 54 58.46 +17 33 44.7 c 560
2005-04-13 20:26:13 C 11 54 58.71 +17 33 42.1 c A48
2005-04-13 20:26:16 C 11 54 58.71 +17 33 41.8 c 560
2005-04-13 20:27:33 C 11 54 58.90 +17 33 39.8 c 560
2005-04-13 20:29:26 C 11 54 59.19 +17 33 36.4 c A48
2005-04-13 20:32:40 C 11 54 59.70 +17 33 30.3 c A48
2005-04-13 20:35:52 C 11 55 00.21 +17 33 25.0 c A48
2005-04-14 12:09:42 C 11 57 29.08 +17 06 07.9 r 379
2005-04-14 12:11:20 C 11 57 29.31 +17 06 04.9 r 379
2005-04-14 12:13:00 C 11 57 29.50 +17 06 03.3 r 379
2005-04-14 12:19:35 C 11 57 30.49 +17 05 51.3 r 379
2005-04-14 19:44:04 C 11 58 37.90 +16 53 15.0 r 151
2005-04-14 19:47:18 C 11 58 38.38 +16 53 09.4 r 151
2005-04-14 19:48:26 C 11 58 38.54 +16 53 07.4 r 151
2005-04-14 20:02:55 C 11 58 40.61 +16 52 44.0 r 185
2005-04-14 20:07:41 C 11 58 41.28 +16 52 36.3 r 185
2005-04-14 20:10:51 C 11 58 41.72 +16 52 31.1 r 185
Radar Observations (7)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2005-03-25 19:10:00 200773.9519 0.5 Hz 2380 -1 -1
2005-03-25 21:05:00 71800794.96 0.5 us 2380 -1 -1
2005-03-26 20:09:00 65526582.83 0.5 us 2380 -1 -1
2005-03-27 20:22:00 60493814.96 0.5 us 2380 -1 -1
2005-03-30 00:20:00 56796660.51 0.5 us 8560 -14 -14
2005-04-01 07:00:00 64281421.8 1 us 8560 -14 -14
2005-04-03 08:00:00 78333960 1 us 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m) -1 Arecibo (305-m, 1963–2020)