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
1998-06-04 21:35:12 C 16 44 56.584 +04 35 20.97 V 118
1998-06-04 21:38:54 C 16 45 00.544 +04 35 45.56 V 118
1998-06-04 21:43:15 C 16 45 05.154 +04 36 14.33 V 118
1998-06-04 22:10:38 C 16 45 36.51 +04 39 11.6 046
1998-06-04 22:11:20 C 16 45 37.25 +04 39 16.4 046
1998-06-04 22:12:51 C 16 45 38.89 +04 39 26.8 046
1998-06-04 22:13:42 C 16 45 39.82 +04 39 32.3 046
1998-06-04 22:14:32 C 16 45 40.72 +04 39 37.8 046
1998-06-05 00:09:00 C 16 47 46.34 +04 53 06.6 z 595
1998-06-05 00:11:00 C 16 47 48.47 +04 53 20.7 z 595
1998-06-05 00:20:14 C 16 47 58.76 +04 54 22.1 z 595
1998-06-05 00:42:56 C 16 48 25.032 +04 56 12.98 V 557
1998-06-05 00:44:16 C 16 48 26.377 +04 56 21.03 V 557
1998-06-05 00:44:51 C 16 48 27.038 +04 56 25.18 V 557
1998-06-05 00:45:26 C 16 48 27.716 +04 56 29.42 V 557
1998-06-05 00:46:00 C 16 48 28.395 +04 56 33.23 V 557
1998-06-05 00:48:55 C 16 48 31.726 +04 56 52.91 V 557
1998-06-05 05:20:47 C 16 55 26.33 +05 33 28.9 i 691
1998-06-05 06:22:40 C 16 56 42.39 +05 41 28.4 i 691
1998-06-05 06:26:39 C 16 56 53.17 +05 41 26.1 z 670
1998-06-05 06:28:39 C 16 56 55.69 +05 41 39.6 z 670
1998-06-05 06:30:40 C 16 56 58.26 +05 41 56.4 z 670
1998-06-05 07:39:39 C 16 58 24.58 +05 50 57.5 z 670
1998-06-05 07:39:59 C 16 58 18.09 +05 51 32.5 i 691
1998-06-05 07:41:39 C 16 58 27.08 +05 51 13.4 z 670
1998-06-05 07:43:39 C 16 58 29.54 +05 51 29.2 z 670
1998-06-05 07:45:40 C 16 58 32.01 +05 51 43.2 z 670
1998-06-05 09:14:19 C 17 01 01.52 +06 07 09.8 17.5 568
1998-06-05 09:26:16 C 17 00 34.47 +06 05 29.8 i 691
1998-06-05 10:19:28 C 17 01 46.25 +06 12 31.4 i 691
1998-06-05 10:26:40 C 17 02 34.96 +06 17 06.7 17.3 568
1998-06-05 11:33:27 C 17 04 03.14 +06 26 20.6 16.8 568
1998-06-05 13:00:39 C 17 06 03.51 +06 38 27.1 17.3 568
1998-06-05 14:29:43 C 17 08 15.60 +06 50 52.7 17.2 568
1998-06-05 17:48:33 C 17 14 10.76 +07 35 44.1 422
1998-06-05 17:49:50 C 17 14 12.91 +07 35 55.5 422
1998-06-05 17:51:07 C 17 14 15.03 +07 36 06.4 422
1998-06-05 17:52:24 C 17 14 17.17 +07 36 18.5 422
1998-06-05 17:56:29 C 17 14 23.98 +07 36 55.6 422
1998-06-05 22:40:30 C 17 24 26.095 +08 00 55.94 V 557
1998-06-05 22:42:18 C 17 24 29.404 +08 01 14.13 V 557
1998-06-05 23:50:51 C 17 26 34.958 +08 12 51.74 V 557
1998-06-05 23:52:30 C 17 26 38.003 +08 13 08.37 V 557
1998-06-06 00:24:04 C 17 27 37.08 +08 18 45.6 046
1998-06-06 00:26:03 C 17 27 40.85 +08 19 06.2 046
1998-06-06 00:26:49 C 17 27 42.24 +08 19 14.2 046
1998-06-06 00:27:42 C 17 27 43.86 +08 19 23.1 046
1998-06-06 00:28:28 C 17 27 45.35 +08 19 30.9 046
1998-06-06 00:29:17 C 17 27 46.85 +08 19 39.0 046
1998-06-06 00:37:17 C 17 28 01.95 +08 21 01.0 046
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)