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
2005-04-15 05:28:27 C 12 00 01.01 +16 37 33.9 r H45
2005-04-15 05:31:12 C 12 00 01.38 +16 37 29.1 r H45
2005-04-15 05:34:41 C 12 00 01.83 +16 37 23.3 r H45
2005-04-15 05:36:53 C 12 00 02.11 +16 37 20.0 r H45
2005-04-15 05:40:25 C 12 00 02.60 +16 37 14.3 r H45
2005-04-15 20:31:57 C 12 02 06.20 +16 14 03.5 o 108
2005-04-15 20:35:45 C 12 02 06.70 +16 13 58.5 o 108
2005-04-15 20:39:29 C 12 02 07.16 +16 13 52.1 o 108
2005-04-16 06:51:46 C 12 03 25.56 +15 58 49.4 r 703
2005-04-16 07:05:45 C 12 03 27.20 +15 58 29.1 r 703
2005-04-16 07:19:57 C 12 03 28.87 +15 58 08.1 r 703
2005-04-16 07:34:18 C 12 03 30.55 +15 57 47.1 r 703
2005-04-16 12:58:54 C 12 04 10.10 +15 50 01.2 17.6 c 608
2005-04-16 13:13:36 C 12 04 11.87 +15 49 39.7 18.5 c 608
2005-04-16 13:29:08 C 12 04 13.74 +15 49 17.3 17.6 c 608
2005-04-16 13:41:59 C 12 04 17.41 +15 48 55.9 r 379
2005-04-16 13:52:45 C 12 04 18.65 +15 48 41.6 r 379
2005-04-19 19:36:03 C 12 12 40.201 +14 10 27.74 r A84
2005-04-19 19:38:17 C 12 12 40.359 +14 10 24.87 r A84
2005-04-19 19:40:31 C 12 12 40.559 +14 10 22.40 r A84
2005-04-19 19:42:45 C 12 12 40.750 +14 10 20.02 r A84
2005-04-19 19:44:59 C 12 12 40.944 +14 10 17.19 r A84
2005-04-19 19:47:13 C 12 12 41.145 +14 10 15.23 r A84
2005-04-19 19:49:28 C 12 12 41.302 +14 10 11.99 r A84
2005-04-19 19:51:42 C 12 12 41.527 +14 10 09.53 r A84
2005-04-19 19:53:57 C 12 12 41.713 +14 10 07.17 r A84
2005-04-19 19:56:11 C 12 12 41.867 +14 10 04.94 r A84
2005-04-19 19:58:25 C 12 12 42.089 +14 10 02.37 r A84
2005-04-19 20:02:54 C 12 12 42.489 +14 09 57.14 r A84
2005-04-19 20:05:09 C 12 12 42.662 +14 09 54.50 r A84
2005-04-19 20:07:23 C 12 12 42.852 +14 09 52.49 r A84
2005-04-24 23:05:47 C 12 22 24.55 +12 10 18.4 o A32
2005-04-24 23:15:32 C 12 22 25.14 +12 10 09.6 o A32
2005-04-24 23:25:18 C 12 22 25.80 +12 10 01.9 o A32
2005-04-24 23:35:52 C 12 22 26.46 +12 09 52.5 o A32
2005-04-24 23:45:38 C 12 22 27.06 +12 09 44.1 o A32
2005-04-26 08:04:50 C 12 24 33.12 +11 43 18.3 17.8 c 644
2005-04-26 08:36:02 C 12 24 34.93 +11 42 53.1 17.7 c 644
2005-04-26 09:11:35 C 12 24 36.99 +11 42 24.3 17.7 c 644
2005-04-27 22:59:20 C 12 26 55.32 +11 13 10.5 r 170
2005-04-27 23:02:48 C 12 26 55.52 +11 13 08.1 r 170
2005-04-27 23:06:15 C 12 26 55.72 +11 13 05.5 r 170
2005-04-27 23:12:18 C 12 26 56.05 +11 13 00.9 r 170
2005-04-29 21:45:20 C 12 29 34.09 +10 39 18.2 o 108
2005-05-02 03:13:01 C 12 32 22.86 +10 03 09.1 r 932
2005-05-02 03:23:00 C 12 32 23.32 +10 03 02.6 r 932
2005-05-02 03:42:00 C 12 32 24.20 +10 02 50.0 r 932
2005-05-03 06:16:43 C 12 33 44.05 +09 45 41.4 r 703
2005-05-03 06:29:52 C 12 33 44.44 +09 45 36.0 r 703
2005-05-03 06:43:10 C 12 33 45.16 +09 45 27.1 r 703
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)