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22662 (1998 QL18)
Classification: Main-belt Asteroid          SPK-ID: 2022662
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1495507596313145 3.9042e-08  
a 3.172864370669057 2.264e-08 au
q 2.698360093828367 1.3046e-07 au
i 4.382710126052366 4.6735e-06 deg
node 339.912870480011 5.4249e-05 deg
peri 69.00576251122162 5.7202e-05 deg
M 286.6601286492419 2.1234e-05 deg
tp 2459621.045830674688
(2022-Feb-10.54583067)
0.00012467 TDB
period 2064.313670783698
5.65
2.2095e-05
6.049e-08
d
yr
n .1743921018860129 1.8666e-09 deg/d
Q 3.647368647509748 2.6026e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1348  
   data-arc span      9837 days (26.93 yr)  
   first obs. used      1993-10-10  
   last obs. used      2020-09-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57768  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:08:51  

Additional Information
 Earth MOID = 1.71155 au 
 Jupiter MOID = 1.77215 au 
 T_jup = 3.180 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456766.5 (2014-Apr-19.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1568365545620648 3.9594e-08  
q 2.668097723915583 1.3326e-07 au
tp 2457555.571807112907
(2016-Jun-16.07180711)
0.0001046 TDB
node 340.5096581746535 5.4589e-05 deg
peri 67.85025478085183 5.7142e-05 deg
i 4.375643835844604 4.6628e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1348  
   data-arc span      9837 days (26.93 yr)  
   first obs. used      1993-10-10  
   last obs. used      2020-09-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57768  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:08:51  

Additional Information
 Jupiter MOID = 1.77215 au 
 T_jup = 3.180 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.567650656410252E-15 -5.23423476111148E-15 -1.232001596426171E-12 3.718954258283732E-15 -1.809630551167361E-13 3.183237738929814E-16
q -5.23423476111148E-15 1.775814334863794E-14 4.952418922277057E-12 -1.576380787704318E-14 7.244007828205835E-13 -1.004614496334821E-15
tp -1.232001596426171E-12 4.952418922277057E-12 1.094182723422502E-8 -1.103959009422712E-11 1.785174514083365E-9 1.448083587075391E-12
node 3.718954258283732E-15 -1.576380787704318E-14 -1.103959009422712E-11 2.979934313333767E-9 -2.972601957618344E-9 -6.086597981271691E-12
peri -1.809630551167361E-13 7.244007828205835E-13 1.785174514083365E-9 -2.972601957618344E-9 3.265194578472896E-9 6.307123147099887E-12
i 3.183237738929814E-16 -1.004614496334821E-15 1.448083587075391E-12 -6.086597981271691E-12 6.307123147099887E-12 2.174195596466766E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.56   n/a E2021B10  
diameter diameter 8.095 km 0.940 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 16.460 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.118   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

22662 (1998 QL18)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20010309/Numbers.arcLast Updated: 2004-04-19

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1913-Jun-24 08:47 00:03 Jupiter 1.83372668454043 1.83372584455516 1.83372752452529 2.6503484059045 2.46992314188807 2419942.866121990 2.95930943441491 56.0942827695545 13.6013220668565 87.2817845883663 1267572.32157496 T 24 CATAB v2.0f-lin.ifort 2021-Apr-13 04:08:58 2021-Apr-13 04:08
1924-Feb-09 15:48 00:03 Jupiter 1.78375126346357 1.78375084732306 1.78375167960396 1.87823136956502 1.60562880422804 2423825.158545970 2.5804613201634 60.7177161173388 27.6177131834774 78.0517692647615 2643316.97486624 T 24 CATAB v2.0f-lin.ifort 2021-Apr-13 04:08:58 2021-Apr-13 04:08
1934-Oct-02 21:37 00:02 Jupiter 1.87211579179453 1.87211503256931 1.87211655102092 2.16340849712141 1.94305267975264 2427713.400900946 2.16330184784223 105.558385287341 14.8798492887935 -89.9856598072333 2277966.39442424 T 24 CATAB v2.0f-lin.ifort 2021-Apr-13 04:08:58 2021-Apr-13 04:08
2009-Sep-24 11:09 < 00:01 Jupiter 1.99654050558598 1.99653994526364 1.99654106590831 4.0193655247916 3.91239172849885 2455098.964860526 0.242093897112088 43.4994743830028 23.8073379631022 85.7155407943351 2875193.25255089 T 24 CATAB v2.0f-lin.ifort 2021-Apr-13 04:08:58 2021-Apr-13 04:08
2020-May-17 06:37 < 00:01 Jupiter 1.81710874156591 1.81710827162976 1.81710921150197 2.67534229895647 2.49503134909691 2458986.775471932 0.26801250280839 47.5105749701563 14.0827124903478 83.8840766706982 2663894.23285697 T 24 CATAB v2.0f-lin.ifort 2021-Apr-13 04:08:58 2021-Apr-13 04:08
2031-Jan-04 12:27 < 00:01 Jupiter 1.76830827298153 1.76830786289802 1.76830868306494 1.88164271107267 1.60703953608946 2462871.018739002 0.578626912011053 58.3729712047787 23.6117894432444 81.9516953593851 2729626.47843034 T 24 CATAB v2.0f-lin.ifort 2021-Apr-13 04:08:58 2021-Apr-13 04:08
2041-Aug-26 18:09 < 00:01 Jupiter 1.87075350285134 1.87075303582514 1.87075396987774 2.12160063040998 1.89621931413468 2466758.256152784 0.929707147797881 62.4304454806496 7.98372700466283 80.3587386286338 2712674.00600831 T 24 CATAB v2.0f-lin.ifort 2021-Apr-13 04:08:58 2021-Apr-13 04:08
2116-Aug-20 16:34 00:03 Jupiter 1.99665862174594 1.99665770575585 1.99665953773716 4.02911323645071 3.92241169200088 2494145.190316927 2.93651782161596 108.46931588517 23.3330555735538 73.9742528937863 2485179.60609327 T 24 CATAB v2.0f-lin.ifort 2021-Apr-13 04:08:58 2021-Apr-13 04:08
2127-Apr-12 04:44 00:03 Jupiter 1.80301038909828 1.8030097402993 1.80301103789695 2.70427049068182 2.52458197083522 2498031.696968061 3.29965314877873 54.513134358389 13.3506826125318 83.4737708326683 1366311.54549199 T 24 CATAB v2.0f-lin.ifort 2021-Apr-13 04:08:58 2021-Apr-13 04:08
2137-Nov-30 10:04 00:04 Jupiter 1.75705723771319 1.75705675665639 1.75705771877029 1.90856047248135 1.63660179487444 2501916.919751215 3.6693319763733 80.260141288619 40.6159504157564 49.6886610028169 2080885.94064912 T 24 CATAB v2.0f-lin.ifort 2021-Apr-13 04:08:58 2021-Apr-13 04:08
2148-Jul-21 12:28 00:04 Jupiter 1.87067686846692 1.87067581541379 1.87067792152133 2.09595524563317 1.86747148505924 2505803.019402504 4.01844567641115 119.987761197295 12.7889555994654 88.5454337766135 2140786.46514902 T 24 CATAB v2.0f-lin.ifort 2021-Apr-13 04:08:58 2021-Apr-13 04:08
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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