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
2019-11-12 13:44:25 s 1 -177808.20 5 +213406.26 4660.0 C57
2019-11-12 14:14:25 S 00 09 33.742 +75 57 44.75 V C57
2019-11-12 14:14:25 s 1 -178043.38 3 +211517.01 6580.0 C57
2019-11-12 15:14:25 S 00 09 25.445 +75 58 50.95 V C57
2019-11-12 15:14:25 s 1 -178482.04 0 +207700.85 2150.0 C57
2019-11-12 15:44:25 S 00 09 21.559 +75 59 22.45 V C57
2019-11-12 15:44:25 s 1 -178685.20 0 +205773.82 4930.0 C57
2019-11-12 16:14:25 S 00 09 17.470 +75 59 54.28 V C57
2019-11-12 16:14:25 s 1 -178877.36 4 +203834.08 460.0 C57
2019-11-12 16:44:25 S 00 09 13.560 +76 00 27.36 V C57
2019-11-12 16:44:25 s 1 -179058.36 2 +201881.57 8280.0 C57
2019-11-12 17:14:25 S 00 09 09.362 +76 00 59.90 V C57
2019-11-12 17:14:25 s 1 -179228.02 2 +199916.23 7920.0 C57
2019-11-12 17:44:25 S 00 09 05.234 +76 01 33.89 V C57
2019-11-12 17:44:25 s 1 -179386.17 0 +197938.01 8900.0 C57
2019-11-12 18:14:25 S 00 09 01.471 +76 02 05.60 V C57
2019-11-12 18:14:25 s 1 -179532.62 4 +195946.83 730.0 C57
2019-11-12 18:44:25 S 00 08 57.406 +76 02 38.54 V C57
2019-11-12 18:44:25 s 1 -179667.20 2 +193942.65 2920.0 C57
2019-11-12 19:14:25 S 00 08 53.551 +76 03 10.66 V C57
2019-11-12 19:14:25 s 1 -179789.71 4 +191925.40 4940.0 C57
2019-11-12 19:44:25 S 00 08 49.534 +76 03 42.88 V C57
2019-11-12 19:44:25 s 1 -179899.96 8 +189895.01 6280.0 C57
2019-11-12 20:14:25 S 00 08 45.569 +76 04 16.36 V C57
2019-11-12 20:14:25 s 1 -179997.76 7 +187851.43 6400.0 C57
2019-11-12 20:44:25 S 00 08 41.669 +76 04 48.90 V C57
2019-11-12 20:44:25 s 1 -180082.90 8 +185794.59 4750.0 C57
2019-11-12 21:14:25 S 00 08 37.694 +76 05 22.70 V C57
2019-11-12 21:14:25 s 1 -180155.18 5 +183724.43 760.0 C57
2019-11-12 21:44:25 S 00 08 33.691 +76 05 54.96 V C57
2019-11-12 21:44:25 s 1 -180214.38 5 +181640.88 3850.0 C57
2019-11-12 22:14:25 S 00 08 29.983 +76 06 27.47 V C57
2019-11-12 22:14:25 s 1 -180260.29 2 +179543.89 3430.0 C57
2019-11-12 22:44:25 S 00 08 25.934 +76 06 59.90 V C57
2019-11-12 22:44:25 s 1 -180292.68 4 +177433.38 8890.0 C57
2019-11-12 23:14:25 S 00 08 22.322 +76 07 32.48 V C57
2019-11-12 23:14:25 s 1 -180311.33 1 +175309.30 9620.0 C57
2019-11-12 23:44:25 S 00 08 18.430 +76 08 06.22 V C57
2019-11-12 23:44:25 s 1 -180316.00 1 +173171.58 4960.0 C57
2019-11-13 00:14:25 S 00 08 14.369 +76 08 39.55 V C57
2019-11-13 00:14:25 s 1 -180306.45 4 +171020.16 4260.0 C57
2019-11-13 00:44:25 S 00 08 10.793 +76 09 12.10 V C57
2019-11-13 00:44:25 s 1 -180282.44 3 +168854.97 6850.0 C57
2019-11-13 01:14:25 S 00 08 06.838 +76 09 45.47 V C57
2019-11-13 01:14:25 s 1 -180243.71 7 +166675.94 2030.0 C57
2019-11-13 01:44:25 S 00 08 03.230 +76 10 18.16 V C57
2019-11-13 01:44:25 s 1 -180190.01 8 +164483.01 9100.0 C57
2019-11-13 02:14:25 S 00 07 59.275 +76 10 50.52 V C57
2019-11-13 02:14:25 s 1 -180121.07 9 +162276.13 7330.0 C57
2019-11-13 02:44:25 S 00 07 55.541 +76 11 23.35 V C57