2013 JR28

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6547444314 ± 1.43e-08
Semi-major axis (a)2.2009777789 AU ± 9.39e-09
Inclination (i)6.55259144° ± 2.34e-06
Long. of Asc. Node (Ω)103.53484207° ± 7.06e-06
Arg. of Perihelion (ω)230.55291199° ± 5.82e-06
Mean Anomaly (M)275.14462055° ± 9.32e-06
Mean Motion (n)0.3018483382°/day ± 1.93e-09
Perihelion dist (q)0.75989983 AU ± 3.17e-08
Aphelion dist (Q)3.64205572 AU ± 3.51e-08
Orbital Period3.26530300 yr ± 2.09e-08
Physical Parameters
H (abs. magnitude)21.70
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.177″
Uncertainty0
Orbit TypeApollo
MOID0.035428 AU
Observations Used299
Radar Obs Used7
Oppositions1
Arc Total2013-2026
First Observation Used2013-05-12
Last Observation Used2026-05-18
Observations (9)
Date Type RA Dec Mag Band Observatory
2026-04-19 06:42:01 C 14 51 56.980 -02 49 04.80 V 807
2026-04-19 07:05:36 C 14 51 55.710 -02 48 54.50 V 807
2026-04-19 07:29:11 C 14 51 54.440 -02 48 43.60 V 807
2026-04-19 07:52:46 C 14 51 53.170 -02 48 33.40 V 807
2026-04-19 10:33:19 C 14 51 45.305 -02 47 28.72 V F52
2026-04-19 10:52:13 C 14 51 44.289 -02 47 19.73 V F52
2026-05-18 01:58:27 C 13 59 25.480 +02 34 48.90 V 807
2026-05-18 02:19:26 C 13 59 23.490 +02 34 56.90 V 807
2026-05-18 02:40:24 C 13 59 21.490 +02 35 04.70 V 807
Radar Observations (7)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2013-06-10 03:30:00 250081.2864 0.3 Hz 2380 -1 -1
2013-06-10 04:00:00 84885397.55 4 us 2380 -1 -1
2013-06-11 03:40:00 76122435.51 4 us 2380 -1 -1
2013-06-11 03:40:00 242761.5767 0.01 Hz 2380 -1 -1
2013-06-16 01:30:00 490125.633 0.15 Hz 8560 -14 -14
2013-06-16 01:40:00 488952.535 0.15 Hz 8560 -14 -14
2013-06-16 02:50:00 39663445.76 1 us 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m) -1 Arecibo (305-m, 1963–2020)