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101458 (1998 WJ6)
Classification: Main-belt Asteroid          SPK-ID: 2101458
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2943916670595874 7.0345e-08  
a 2.532035024744049 7.8238e-09 au
q 1.786625012756385 1.8184e-07 au
i 4.05077361299494 4.8401e-06 deg
node 60.87028185401993 6.7129e-05 deg
peri 326.113884426484 6.7498e-05 deg
M 185.6533715838198 7.1017e-06 deg
tp 2459913.211953171431
(2022-Nov-29.71195317)
3.1459e-05 TDB
period 1471.644765789481
4.03
6.8209e-06
1.867e-08
d
yr
n .2446242519721625 1.1338e-09 deg/d
Q 3.277445036731713 1.0127e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1188  
   data-arc span      9268 days (25.37 yr)  
   first obs. used      1994-12-03  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49816  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 17:59:48  

Additional Information
 Earth MOID = .791908 au 
 Jupiter MOID = 2.17637 au 
 T_jup = 3.385 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456979.5 (2014-Nov-18.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2914693517006361 6.992e-08  
q 1.795702485561224 1.8036e-07 au
tp 2456965.483200916458
(2014-Nov-03.98320092)
2.4069e-05 TDB
node 61.0413117556196 6.7262e-05 deg
peri 325.6248749838135 6.7654e-05 deg
i 4.044455209408561 4.825e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1188  
   data-arc span      9268 days (25.37 yr)  
   first obs. used      1994-12-03  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49816  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 17:59:48  

Additional Information
 Jupiter MOID = 2.17637 au 
 T_jup = 3.385 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.888795459753413E-15 -1.260774468947692E-14 -8.908671989718876E-13 -7.954319359922466E-16 -2.748476948684838E-13 -1.747153175865787E-14
q -1.260774468947692E-14 3.253149668889519E-14 2.313864458297829E-12 2.717346936739254E-15 7.127784471773847E-13 4.515746641315806E-14
tp -8.908671989718876E-13 2.313864458297829E-12 5.793111550472303E-10 8.075453668123529E-13 1.995732319467204E-10 3.795955061722495E-12
node -7.954319359922466E-16 2.717346936739254E-15 8.075453668123529E-13 4.524156367967611E-9 -4.512145286644868E-9 -2.048836154520179E-10
peri -2.748476948684838E-13 7.127784471773847E-13 1.995732319467204E-10 -4.512145286644868E-9 4.577046847705903E-9 2.055612392892397E-10
i -1.747153175865787E-14 4.515746641315806E-14 3.795955061722495E-12 -2.048836154520179E-10 2.055612392892397E-10 2.328026963969048E-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 16.03   n/a E2021B55  
diameter diameter 3.967 km 0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.048   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

101458 (1998 WJ6)          Discovered 1998-Nov-22 by Boeuf, M. at Les Tardieux
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ 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
2193-May-13 17:31 00:02 Hebe 0.047483665299544 0.0474812659258702 0.0474860780731267 4.56814733132209 4.56814730266229 2522170.229607210 1.77340312689247 1359.08064483417 44.475902379267 85.2986411967799 159099.269336048 T 22 CATAB v2.0f-lin.ifort 2020-May-20 18:00:05 2020-May-20 18:00

Alternate Designations
 1998 WJ6 = 2002 NT51 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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