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JPL Small-Body Database Browser
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20411 (1998 QJ69)
Classification: Main-belt Asteroid          SPK-ID: 2020411
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04900003128939932 5.2732e-08  
a 3.144741808939501 2.299e-08 au
q 2.990649361904383 1.7163e-07 au
i 15.45527875681633 6.2494e-06 deg
node 210.1028373074914 1.6259e-05 deg
peri 23.34503241016404 5.2206e-05 deg
M 63.26580349829359 4.9089e-05 deg
tp 2458642.533450010107
(2019-Jun-08.03345001)
0.00027791 TDB
period 2036.929128701217
5.58
2.2337e-05
6.116e-08
d
yr
n .1767366350293898 1.9381e-09 deg/d
Q 3.298834255974618 2.4116e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1129  
   data-arc span      9424 days (25.80 yr)  
   first obs. used      1993-07-22  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52425  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:52:21  

Additional Information
 Earth MOID = 1.98687 au 
 Jupiter MOID = 1.68058 au 
 T_jup = 3.151 
[ show covariance matrix ]

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 13.4   n/a MPO492967  
diameter diameter 11.008 km 0.388 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.076   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

20411 (1998 QJ69)          Discovered 1998-Aug-24 by LINEAR at Socorro
Reference: 20010109/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
1904-Aug-24 05:32 00:03 Jupiter 1.72838080561626 1.72837988810034 1.72838172315526 4.76385387745242 4.65984652401652 2416716.730624319 3.27522735649934 396.748100893634 25.7233811232554 -84.3746880533826 2744219.77547522 T 23 CATAB v2.0e-lin.ifort 2019-May-30 02:52:32 2019-May-30 02:52
1988-Sep-24 00:31 < 00:01 Jupiter 1.8064011463054 1.80640046849222 1.806401824119 4.75197507661243 4.65225386251691 2447428.521734990 0.81766989414384 109.200175979763 30.1222685282871 82.5357487912588 3079219.4321216 T 23 CATAB v2.0e-lin.ifort 2019-May-30 02:52:32 2019-May-30 02:52
1999-Apr-24 07:49 < 00:01 Jupiter 1.76451876625703 1.76451823160884 1.76451930090523 4.69722109398437 4.59389000270298 2451292.825745019 0.496303436663281 74.7523855854846 25.1631863405011 -86.579127405249 2718137.64585354 T 23 CATAB v2.0e-lin.ifort 2019-May-30 02:52:32 2019-May-30 02:52
2083-May-24 23:44 00:02 Jupiter 1.75846432300282 1.75846336752442 1.75846527848852 4.79545074238407 4.6939302995848 2482004.488723334 2.06384701003649 236.344940638274 29.2621743525218 80.818807019016 2923731.82273501 T 23 CATAB v2.0e-lin.ifort 2019-May-30 02:52:32 2019-May-30 02:52
2093-Dec-20 03:04 00:03 Jupiter 1.81795372062852 1.81795233571756 1.81795510555013 4.62584733271118 4.52400507020254 2485866.627678476 2.51594334529907 252.547739088325 27.4372332790258 -74.9356649945997 2735596.67032934 T 23 CATAB v2.0e-lin.ifort 2019-May-30 02:52:32 2019-May-30 02:52
2178-Jan-24 07:35 00:05 Jupiter 1.72228702567473 1.72228583829467 1.72228821311441 4.82870134518223 4.7257543991557 2516581.816120043 4.82019778702067 581.237339226717 26.9841984178157 84.7286956027266 2849584.43193476 T 23 CATAB v2.0e-lin.ifort 2019-May-30 02:52:32 2019-May-30 02:52
2188-Aug-17 10:47 00:06 Jupiter 1.87982976342348 1.87982646512976 1.87983306175856 4.53641127789987 4.43597316238034 2520439.948988675 5.61173109919039 480.391346502894 28.678763467306 -69.4729637292325 2784473.43093016 T 23 CATAB v2.0e-lin.ifort 2019-May-30 02:52:32 2019-May-30 02:52

Alternate Designations
 1998 QJ69 = 1999 PD1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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