1998 KY26

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2001091212 ± 1.94e-07
Semi-major axis (a)1.2288685535 AU ± 2.18e-07
Inclination (i)1.49115162° ± 2.86e-06
Long. of Asc. Node (Ω)84.18285917° ± 5.05e-05
Arg. of Perihelion (ω)210.00296809° ± 6.72e-05
Mean Anomaly (M)0.98343339° ± 8.41e-06
Mean Motion (n)0.7235259795°/day ± 1.92e-07
Perihelion dist (q)0.98296075 AU ± 2.95e-07
Aphelion dist (Q)1.47477636 AU ± 3.54e-07
Orbital Period1.36225417 yr ± 3.62e-07
NGA Modelr2
A11.27395842e-10 ± 3.01e-11 AU/d²
A2-1.59877008e-13 ± 3.65e-14 AU/d²
A31.20924829e-11 ± 8.68e-13 AU/d²
Physical Parameters
H (abs. magnitude)25.70
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.449″
Uncertainty0
Orbit TypeApollo
MOID0.002874 AU
Observations Used251
Radar Obs Used4
Oppositions1
Arc Total1998-2024
First Observation Used1998-05-28
Last Observation Used2024-06-03
Observations (257)
Date Type RA Dec Mag Band Observatory
1998-05-28 05:28:03 c 15 25 12.67 -03 02 56.6 i 691
1998-05-28 06:27:58 c 15 25 16.75 -03 01 59.1 i 691
1998-05-31 06:02:07 c 15 39 25.55 -01 32 14.4 i 691
1998-05-31 06:22:12 c 15 39 28.95 -01 31 41.7 i 691
1998-05-31 06:42:31 c 15 39 32.43 -01 31 07.9 i 691
1998-05-31 20:29:22 C 15 43 43.48 -01 08 30.5 046
1998-05-31 20:30:52 C 15 43 43.87 -01 08 27.9 046
1998-05-31 20:32:02 C 15 43 44.17 -01 08 25.1 046
1998-05-31 20:33:10 C 15 43 44.43 -01 08 23.8 046
1998-05-31 20:34:17 C 15 43 44.61 -01 08 22.7 046
1998-05-31 20:35:33 C 15 43 44.95 -01 08 19.1 046
1998-05-31 22:14:45 C 15 44 08.142 -01 05 17.31 V 557
1998-05-31 23:24:38 C 15 44 24.939 -01 03 03.45 V 557
1998-05-31 23:26:28 C 15 44 25.391 -01 03 00.23 V 557
1998-05-31 23:28:19 C 15 44 25.865 -01 02 56.27 V 557
1998-05-31 23:30:09 C 15 44 26.313 -01 02 52.95 V 557
1998-06-01 00:27:12 C 15 45 04.57 -00 52 28.5 18.1 860
1998-06-01 00:32:11 C 15 45 05.14 -00 52 21.4 17.8 860
1998-06-01 01:23:02 C 15 45 15.93 -00 50 43.4 18.3 860
1998-06-01 03:31:06 C 15 46 09.52 -00 53 21.3 b 709
1998-06-01 03:35:01 C 15 46 10.51 -00 53 13.2 b 709
1998-06-01 03:41:23 C 15 46 12.13 -00 53 00.7 b 709
1998-06-01 03:46:16 C 15 46 13.37 -00 52 50.7 b 709
1998-06-01 03:46:45 c 15 46 15.68 -00 52 42.5 i 691
1998-06-01 03:49:45 C 15 46 14.26 -00 52 43.5 b 709
1998-06-01 03:52:03 c 15 46 17.05 -00 52 31.6 i 691
1998-06-01 03:52:49 C 15 46 15.00 -00 52 37.4 b 709
1998-06-01 03:56:13 C 15 46 15.81 -00 52 31.1 b 709
1998-06-01 03:57:25 c 15 46 18.42 -00 52 21.2 i 691
1998-06-01 09:19:41 c 15 47 37.79 -00 41 12.0 i 691
1998-06-01 09:25:03 c 15 47 39.19 -00 41 00.7 i 691
1998-06-01 09:38:47 C 15 48 23.28 -00 32 17.5 422
1998-06-01 09:43:05 C 15 48 24.52 -00 32 07.7 422
1998-06-01 09:45:14 C 15 48 25.18 -00 32 03.9 422
1998-06-01 21:56:28 C 15 52 51.185 -00 14 15.07 V 118
1998-06-01 21:59:46 C 15 52 52.303 -00 14 06.61 V 118
1998-06-01 22:04:39 C 15 52 53.816 -00 13 55.28 V 118
1998-06-01 22:07:09 C 15 52 54.642 -00 13 48.85 V 118
1998-06-01 22:46:18 C 15 53 08.56 -00 12 17.0 046
1998-06-01 22:47:14 C 15 53 08.87 -00 12 14.7 046
1998-06-01 22:48:35 C 15 53 09.28 -00 12 11.1 046
1998-06-01 22:49:52 C 15 53 09.74 -00 12 07.9 046
1998-06-01 22:50:52 C 15 53 10.06 -00 12 05.6 046
1998-06-01 23:27:16 C 15 53 22.061 -00 10 40.95 V 557
1998-06-01 23:33:12 C 15 53 24.035 -00 10 26.28 V 557
1998-06-01 23:39:07 C 15 53 26.055 -00 10 11.64 V 557
1998-06-01 23:40:17 C 15 53 26.481 -00 10 08.57 V 557
1998-06-01 23:53:26 C 15 53 30.948 -00 09 35.99 V 557
1998-06-02 00:18:41 C 15 53 39.669 -00 08 33.03 V 557
1998-06-02 00:33:45 C 15 53 44.953 -00 07 55.37 V 557
Radar Observations (4)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
1998-06-06 03:40:00 201145.6 3 Hz 8510 -13 -14
1998-06-07 14:00:00 5617378.24 0.2 us 8510 -13 -14
1998-06-08 12:30:00 5386764.1 10 us 8510 -13 -14
1998-06-08 12:30:00 -37380 3 Hz 8510 -13 -14
Station codes
-14 DSS-14 Goldstone (70-m) -13 DSS-13 Goldstone (34-m)