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85831 (1998 XL64)
Classification: Main-belt Asteroid          SPK-ID: 2085831
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1289516332312617 3.2761e-08  
a 2.60416858759204 1.0331e-08 au
q 2.268356795012499 8.4889e-08 au
i 5.735938622103069 3.7246e-06 deg
node 65.66681485182468 3.5787e-05 deg
peri 12.98799522551734 3.8494e-05 deg
M 123.8208616079256 1.4006e-05 deg
tp 2458868.549273539676
(2020-Jan-20.04927354)
5.9189e-05 TDB
period 1534.977701314518
4.20
9.1344e-06
2.501e-08
d
yr
n .2345310942899722 1.3957e-09 deg/d
Q 2.939980380171582 1.1664e-08 au
  Orbit Determination Parameters
   # obs. used (total)      925  
   data-arc span      8212 days (22.48 yr)  
   first obs. used      1998-11-21  
   last obs. used      2021-05-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52239  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:27:07  

Additional Information
 Earth MOID = 1.28408 au 
 Jupiter MOID = 2.29706 au 
 T_jup = 3.394 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.43   n/a MPO637177  

85831 (1998 XL64)          Discovered 1998-Dec-14 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1998 XL64 = 2002 TD28 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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