1997 QK1

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6464564851 ± 2.23e-09
Semi-major axis (a)2.7831080593 AU ± 9.82e-09
Inclination (i)2.85157676° ± 8.08e-07
Long. of Asc. Node (Ω)306.46998690° ± 6.95e-06
Arg. of Perihelion (ω)3.20882168° ± 7.41e-06
Mean Anomaly (M)22.59403957° ± 3.29e-07
Mean Motion (n)0.2122839562°/day ± 1.12e-09
Perihelion dist (q)0.98394981 AU ± 7.12e-09
Aphelion dist (Q)4.58226631 AU ± 1.73e-08
Orbital Period4.64296172 yr ± 2.46e-08
NGA Modelr2
A2-3.21088531e-14 ± 1.35e-14 AU/d²
Physical Parameters
H (abs. magnitude)20.26
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.250″
Uncertainty0
Orbit TypeApollo
MOID0.017116 AU
Observations Used662
Radar Obs Used9
Oppositions22
Arc Total1997-2025
First Observation Used1997-08-27
Last Observation Used2025-11-13
Observations (726)
Date Type RA Dec Mag Band Observatory
2025-09-05 22:13:54 C 01 25 13.157 +31 52 12.00 Z C23
2025-09-05 22:15:38 C 01 25 13.080 +31 52 08.51 Z C23
2025-09-05 22:18:13 B 01 25 11.02 +31 52 21.8 X L76
2025-09-05 22:23:21 B 01 25 10.80 +31 52 11.7 X L76
2025-09-05 22:28:28 B 01 25 10.56 +31 52 02.1 X L76
2025-09-06 10:07:16 C 01 24 55.078 +31 29 54.06 V T05
2025-09-06 10:11:14 C 01 24 54.881 +31 29 46.90 V T05
2025-09-06 10:20:58 C 01 24 54.389 +31 29 29.94 V T05
2025-09-06 11:09:09 C 01 24 51.972 +31 28 02.82 V T05
2025-09-06 20:52:15 B 01 24 37.36 +31 09 14.8 X L76
2025-09-06 20:58:24 B 01 24 37.12 +31 09 03.6 X L76
2025-09-06 21:04:33 B 01 24 36.85 +31 08 53.3 X L76
2025-09-06 21:10:43 B 01 24 36.59 +31 08 42.3 X L76
2025-09-06 21:16:52 B 01 24 36.32 +31 08 31.8 X L76
2025-09-07 11:33:41 C 01 24 13.385 +30 43 54.44 V T05
2025-09-07 11:37:36 C 01 24 13.181 +30 43 47.96 V T05
2025-09-07 11:41:31 C 01 24 12.950 +30 43 41.59 V T05
2025-09-07 12:01:40 C 01 24 11.904 +30 43 07.21 V T05
2025-09-07 19:52:34 B 01 24 02.42 +30 28 54.9 X L76
2025-09-07 20:02:51 B 01 24 01.99 +30 28 39.1 X L76
2025-09-07 20:13:07 B 01 24 01.58 +30 28 23.3 X L76
2025-09-13 22:38:30 C 01 20 08.587 +27 09 36.43 V R17
2025-09-13 23:00:07 C 01 20 07.795 +27 09 14.18 V R17
2025-09-13 23:21:29 C 01 20 06.984 +27 08 52.22 V R17
2025-09-13 23:48:07 C 01 20 05.947 +27 08 24.36 V R17
2025-09-14 09:01:26 C 01 19 47.647 +26 58 10.92 V 703
2025-09-14 09:08:19 C 01 19 47.327 +26 58 03.65 V 703
2025-09-14 09:11:41 C 01 19 47.183 +26 57 59.80 V 703
2025-09-14 09:15:00 C 01 19 47.053 +26 57 55.87 V 703
2025-09-15 01:26:32 B 01 19 18.15 +26 40 01.7 X L76
2025-09-15 01:37:13 B 01 19 17.72 +26 39 49.8 X L76
2025-09-15 01:47:54 B 01 19 17.28 +26 39 37.9 X L76
2025-09-15 01:49:33 C 01 19 20.273 +26 39 58.90 V R17
2025-09-15 02:09:05 C 01 19 19.394 +26 39 38.09 V R17
2025-09-15 02:28:38 C 01 19 18.518 +26 39 17.86 V R17
2025-09-15 02:48:40 C 01 19 17.599 +26 38 56.40 V R17
2025-09-15 07:42:41 C 01 19 10.585 +26 33 38.27 V 703
2025-09-15 07:45:59 C 01 19 10.441 +26 33 35.03 V 703
2025-09-15 07:49:16 C 01 19 10.337 +26 33 31.68 V 703
2025-09-15 07:52:37 C 01 19 10.164 +26 33 27.68 V 703
2025-09-15 08:13:44 C 01 19 09.250 +26 33 06.16 V G96
2025-09-15 08:14:23 C 01 19 09.224 +26 33 05.54 V G96
2025-09-15 08:21:11 C 01 19 08.915 +26 32 58.52 V G96
2025-09-15 08:21:51 C 01 19 08.879 +26 32 57.95 V G96
2025-09-15 08:28:39 C 01 19 08.576 +26 32 50.68 V G96
2025-09-15 08:29:19 C 01 19 08.555 +26 32 50.14 V G96
2025-09-15 08:36:07 C 01 19 08.249 +26 32 42.97 V G96
2025-09-15 22:12:19 B 01 18 46.627 +26 18 15.52 V 160
2025-09-15 22:15:16 B 01 18 46.514 +26 18 12.38 V 160
2025-09-15 22:20:02 B 01 18 46.327 +26 18 07.70 V 160
Radar Observations (9)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2025-08-15 00:20:00 466498.317 2 Hz 8560 -14 -14
2025-08-15 00:50:00 463286.158 2 Hz 8560 -14 -14
2025-08-15 01:20:00 36485008.073 20 us 8560 -14 -14
2025-08-15 02:00:00 36356530.241 2 us 8560 -14 -14
2025-08-17 01:30:00 27686626.8 1 us 8560 -14 -14
2025-08-19 01:50:00 190642.014 0.5 Hz 8560 -14 -14
2025-08-19 02:50:00 21397165.78 0.375 us 8560 -14 -14
2025-08-21 10:30:00 20857634.07 0.3 us 8560 -14 -14
2025-08-23 08:10:00 25919414.9 0.2 us 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m)