18172 (2000 QL7)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5110299298 ± 6.25e-09
Semi-major axis (a)2.4257654377 AU ± 9.50e-10
Inclination (i)17.82779980° ± 1.30e-06
Long. of Asc. Node (Ω)338.42358622° ± 3.04e-06
Arg. of Perihelion (ω)100.76252583° ± 4.20e-06
Mean Anomaly (M)206.68326087° ± 8.97e-07
Mean Motion (n)0.2608789695°/day ± 1.53e-10
Perihelion dist (q)1.18612670 AU ± 1.52e-08
Aphelion dist (Q)3.66540418 AU ± 1.52e-08
Orbital Period3.77809789 yr ± 2.22e-09
Physical Parameters
H (abs. magnitude)15.69
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.341″
Uncertainty0
Orbit TypeAmor
MOID0.365243 AU
Observations Used4239
Gaia Obs Used36
Oppositions29
Arc Total1977-2024
First Observation Used1977-07-21
Last Observation Used2024-05-09
Observations (6767)
Date Type RA Dec Mag Band Observatory
2019-11-16 16:14:25 s 1 +150315.90 5 +140539.57 5090.0 C57
2019-11-16 16:44:25 S 23 50 43.207 +77 57 28.15 V C57
2019-11-16 16:44:25 s 1 +150318.60 6 +143119.36 4750.0 C57
2019-11-16 17:14:25 S 23 50 34.188 +77 57 56.02 V C57
2019-11-16 17:14:25 s 1 +150301.09 7 +145680.01 1850.0 C57
2019-11-16 17:44:25 S 23 50 24.977 +77 58 26.22 V C57
2019-11-16 17:44:25 s 1 +150263.86 4 +148221.63 7810.0 C57
2019-11-16 18:14:25 S 23 50 16.054 +77 58 53.18 V C57
2019-11-16 18:14:25 s 1 +150207.38 0 +150744.35 4010.0 C57
2019-11-16 18:44:25 S 23 50 07.128 +77 59 22.24 V C57
2019-11-16 18:44:25 s 1 +150132.09 9 +153248.29 1780.0 C57
2019-11-16 19:14:25 S 23 49 57.960 +77 59 50.32 V C57
2019-11-16 19:14:25 s 1 +150038.46 1 +155733.60 2400.0 C57
2019-11-16 19:44:25 S 23 49 49.188 +78 00 18.90 V C57
2019-11-16 19:44:25 s 1 +149926.89 3 +158200.39 7120.0 C57
2019-11-16 20:14:25 S 23 49 39.720 +78 00 47.20 V C57
2019-11-16 20:14:25 s 1 +149797.80 9 +160648.78 7160.0 C57
2019-11-16 21:14:25 S 23 49 21.977 +78 01 43.54 V C57
2019-11-16 21:14:25 s 1 +149488.67 4 +165490.92 7820.0 C57
2019-11-16 21:44:25 S 23 49 12.996 +78 02 10.86 V C57
2019-11-16 21:44:25 s 1 +149309.38 7 +167884.91 690.0 C57
2019-11-16 22:14:25 S 23 49 04.428 +78 02 39.80 V C57
2019-11-16 22:14:25 s 1 +149114.11 0 +170261.02 3350.0 C57
2019-11-16 22:44:25 S 23 48 55.094 +78 03 06.77 V C57
2019-11-16 22:44:25 s 1 +148903.19 5 +172619.36 6850.0 C57
2019-11-16 23:14:25 S 23 48 46.190 +78 03 35.60 V C57
2019-11-16 23:14:25 s 1 +148676.98 4 +174960.08 2190.0 C57
2019-11-16 23:44:25 S 23 48 37.219 +78 04 02.35 V C57
2019-11-16 23:44:25 s 1 +148435.81 0 +177283.28 340.0 C57
2019-11-17 00:14:25 S 23 48 28.577 +78 04 30.50 V C57
2019-11-17 00:14:25 s 1 +148179.99 5 +179589.09 2270.0 C57
2019-11-17 00:44:25 S 23 48 19.735 +78 04 57.79 V C57
2019-11-17 00:44:25 s 1 +147909.85 2 +181877.63 8900.0 C57
2019-11-17 01:14:25 S 23 48 10.874 +78 05 24.50 V C57
2019-11-17 01:14:25 s 1 +147625.68 5 +184149.03 1120.0 C57
2019-11-17 01:44:25 S 23 48 02.030 +78 05 53.16 V C57
2019-11-17 01:44:25 s 1 +147327.78 9 +186403.40 9800.0 C57
2019-11-17 02:14:25 S 23 47 52.956 +78 06 18.86 V C57
2019-11-17 02:14:25 s 1 +147016.45 2 +188640.86 5800.0 C57
2019-11-17 02:44:25 S 23 47 44.580 +78 06 47.66 V C57
2019-11-17 02:44:25 s 1 +146691.95 1 +190861.53 9940.0 C57
2019-11-17 03:14:25 S 23 47 35.558 +78 07 13.91 V C57
2019-11-17 03:14:25 s 1 +146354.55 9 +193065.52 3010.0 C57
2019-11-17 03:44:25 S 23 47 26.741 +78 07 41.56 V C57
2019-11-17 03:44:25 s 1 +146004.53 8 +195252.95 5820.0 C57
2019-11-17 04:14:25 S 23 47 18.089 +78 08 08.34 V C57
2019-11-17 04:14:25 s 1 +145642.14 6 +197423.93 9100.0 C57
2019-11-17 04:44:25 S 23 47 09.166 +78 08 35.30 V C57
2019-11-17 04:44:25 s 1 +145267.63 1 +199578.57 3610.0 C57
2019-11-17 05:44:25 S 23 46 51.662 +78 09 29.52 V C57