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
1998-06-07 00:07:55 C 18 31 55.450 +13 09 15.88 V 118
1998-06-07 00:16:48 C 18 32 26.135 +13 10 47.66 V 557
1998-06-07 00:18:06 C 18 32 30.315 +13 11 05.84 V 557
1998-06-07 00:21:16 C 18 32 40.327 +13 11 49.59 V 557
1998-06-07 00:22:05 C 18 32 42.903 +13 12 00.77 V 557
1998-06-07 01:11:35 C 18 35 21.289 +13 23 23.30 V 557
1998-06-07 01:12:15 C 18 35 23.445 +13 23 32.55 V 557
1998-06-07 01:15:46 C 18 35 34.906 +13 24 20.54 V 557
1998-06-07 10:02:01 C 19 09 04.80 +15 27 10.0 658
1998-06-07 10:02:35 C 19 09 07.07 +15 27 18.1 658
1998-06-07 10:03:11 C 19 09 09.19 +15 27 26.2 658
1998-06-08 09:58:19 C 21 01 11.80 +19 39 18.0 658
1998-06-08 09:59:28 C 21 01 17.16 +19 39 25.0 658
1998-06-08 10:00:37 C 21 01 22.61 +19 39 32.4 658
2002-02-16 10:57:33 C 10 02 10.075 +16 38 57.32 V T12
2002-02-17 12:35:49 C 09 59 50.307 +16 53 28.02 V T12
2020-12-10 04:55:21 C 06 40 38.589 +23 10 40.06 V 309
2020-12-10 05:32:02 C 06 40 35.128 +23 10 47.26 V 309
2020-12-10 12:10:05 C 06 39 59.07 +23 11 50.1 o 568
2020-12-10 12:12:36 C 06 39 58.83 +23 11 50.5 o 568
2020-12-10 12:15:08 C 06 39 58.59 +23 11 51.0 o 568
2020-12-12 04:54:27 C 06 36 14.853 +23 19 38.44 V 309
2020-12-12 05:56:49 C 06 36 08.684 +23 19 50.06 V 309
2020-12-12 06:44:33 C 06 36 03.950 +23 19 58.82 V 309
2020-12-15 01:12:45 C 06 29 40.33 +23 31 36.6 V 950
2020-12-15 01:13:19 C 06 29 40.28 +23 31 36.9 V 950
2020-12-15 01:24:12 C 06 29 39.14 +23 31 38.8 V 950
2020-12-15 01:24:47 C 06 29 39.09 +23 31 38.9 V 950
2020-12-15 01:35:41 C 06 29 37.96 +23 31 40.8 V 950
2020-12-15 01:36:15 C 06 29 37.91 +23 31 40.9 V 950
2020-12-15 01:47:10 C 06 29 36.76 +23 31 42.8 V 950
2020-12-15 01:47:44 C 06 29 36.70 +23 31 43.0 V 950
2020-12-15 03:03:00 C 06 29 28.88 +23 31 55.7 V 950
2020-12-15 03:03:34 C 06 29 28.81 +23 31 55.9 V 950
2024-04-17 09:26:05 C 15 43 53.555 -11 21 58.16 V 309
2024-04-17 09:28:02 C 15 43 53.670 -11 21 58.04 V 309
2024-04-17 09:30:01 C 15 43 53.792 -11 21 57.91 V 309
2024-04-17 09:32:00 C 15 43 53.915 -11 21 57.75 V 309
2024-04-17 09:33:56 C 15 43 54.034 -11 21 57.62 V 309
2024-05-01 06:18:52 C 16 12 33.811 -11 04 33.08 V G37
2024-05-01 06:35:38 C 16 12 35.353 -11 04 32.76 V G37
2024-05-06 12:38:45 C 16 27 51.882 -10 56 55.09 X F51
2024-05-06 13:10:53 C 16 27 55.528 -10 56 52.71 X F51
2024-05-06 13:27:00 C 16 27 57.354 -10 56 51.40 X F51
2024-05-11 01:49:10 C 16 45 24.945 -10 51 21.77 V J13
2024-05-19 03:46:55 C 17 35 53.100 -10 34 51.80 V W84
2024-05-19 04:00:53 C 17 35 57.679 -10 34 50.88 V W84
2024-05-19 04:21:54 C 17 36 04.533 -10 34 49.31 V W84
2024-05-19 04:36:22 C 17 36 09.234 -10 34 48.11 V W84
2024-05-21 01:46:06 C 17 54 01.386 -10 29 48.34 V Z18
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)