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
1998-06-06 00:38:09 C 17 28 03.58 +08 21 10.1 046
1998-06-06 00:53:23 C 17 28 32.363 +08 23 31.48 V 557
1998-06-06 00:55:43 C 17 28 36.840 +08 23 55.59 V 557
1998-06-06 01:03:14 C 17 28 51.192 +08 25 12.69 V 557
1998-06-06 01:03:56 C 17 28 52.543 +08 25 19.92 V 557
1998-06-06 01:04:41 C 17 28 53.980 +08 25 27.69 V 557
1998-06-06 04:41:45 C 17 38 00.07 +09 08 31.8 i 686
1998-06-06 04:42:06 C 17 38 00.86 +09 08 36.0 i 686
1998-06-06 04:42:34 C 17 38 01.83 +09 08 41.5 i 686
1998-06-06 04:42:54 C 17 38 02.48 +09 08 45.1 i 686
1998-06-06 04:43:35 C 17 38 03.96 +09 08 53.4 i 686
1998-06-06 05:05:47 C 17 38 50.76 +09 13 11.5 i 686
1998-06-06 05:06:04 C 17 38 51.36 +09 13 14.7 i 686
1998-06-06 05:06:24 C 17 38 52.02 +09 13 18.2 i 686
1998-06-06 05:07:02 C 17 38 53.34 +09 13 25.6 i 686
1998-06-06 05:07:17 C 17 38 53.89 +09 13 28.7 i 686
1998-06-06 06:37:18 C 17 42 08.27 +09 26 03.9 658
1998-06-06 06:38:13 C 17 42 10.16 +09 26 14.3 658
1998-06-06 06:39:02 C 17 42 11.95 +09 26 23.4 658
1998-06-06 11:33:31 C 17 54 53.52 +10 50 03.0 422
1998-06-06 11:40:03 C 17 55 09.44 +10 51 28.2 422
1998-06-06 11:41:16 C 17 55 12.47 +10 51 45.3 422
1998-06-06 13:34:12 C 17 59 49.40 +11 16 25.3 422
1998-06-06 13:35:16 C 17 59 52.04 +11 16 39.6 422
1998-06-06 13:36:11 C 17 59 54.29 +11 16 51.3 422
1998-06-06 13:37:09 C 17 59 56.71 +11 17 03.4 422
1998-06-06 15:43:14 C 18 05 31.55 +11 44 25.6 426
1998-06-06 15:50:06 C 18 05 49.15 +11 45 55.9 426
1998-06-06 16:33:00 C 18 07 40.12 +11 55 18.1 426
1998-06-06 16:56:09 C 18 08 40.80 +12 00 21.2 426
1998-06-06 17:06:03 C 18 09 06.99 +12 02 29.4 426
1998-06-06 17:13:56 C 18 09 27.89 +12 04 11.9 426
1998-06-06 22:44:11 C 18 27 37.29 +12 49 34.6 046
1998-06-06 22:44:41 C 18 27 38.82 +12 49 41.2 046
1998-06-06 22:45:10 C 18 27 40.33 +12 49 48.1 046
1998-06-06 22:45:40 C 18 27 41.90 +12 49 55.4 046
1998-06-06 22:46:11 C 18 27 43.48 +12 50 02.6 046
1998-06-06 22:48:08 C 18 27 49.55 +12 50 30.0 046
1998-06-06 22:48:33 C 18 27 50.81 +12 50 36.5 046
1998-06-06 22:48:58 C 18 27 52.12 +12 50 41.9 046
1998-06-06 22:49:23 C 18 27 53.41 +12 50 48.0 046
1998-06-06 22:49:48 C 18 27 54.69 +12 50 53.6 046
1998-06-06 22:50:13 C 18 27 56.02 +12 50 59.2 046
1998-06-06 22:50:39 C 18 27 57.30 +12 51 05.7 046
1998-06-06 22:51:03 C 18 27 58.59 +12 51 11.1 046
1998-06-06 22:51:28 C 18 27 59.90 +12 51 17.3 046
1998-06-06 22:51:53 C 18 28 01.17 +12 51 22.7 046
1998-06-06 23:57:51 C 18 31 23.641 +13 06 55.60 V 118
1998-06-06 23:59:07 C 18 31 27.659 +13 07 13.68 V 118
1998-06-07 00:00:52 C 18 31 33.195 +13 07 38.01 V 118
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)