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85824 (1998 XV20)
Classification: Main-belt Asteroid          SPK-ID: 2085824
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0869321816686779 4.9684e-08  
a 2.52173932952132 1.1156e-08 au
q 2.302519028006322 1.2389e-07 au
i 1.25090631778771 4.2696e-06 deg
node 237.3470388645432 0.00023007 deg
peri 283.9608847635709 0.0002316 deg
M 80.49768785788928 2.7506e-05 deg
tp 2458673.438352469016
(2019-Jul-08.93835247)
0.00011161 TDB
period 1462.677950688677
4.00
9.7059e-06
2.657e-08
d
yr
n .2461238988599645 1.6332e-09 deg/d
Q 2.740959631036317 1.2126e-08 au
  Orbit Determination Parameters
   # obs. used (total)      746  
   data-arc span      10745 days (29.42 yr)  
   first obs. used      1991-01-13  
   last obs. used      2020-06-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60051  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 00:17:56  

Additional Information
 Earth MOID = 1.31104 au 
 Jupiter MOID = 2.23692 au 
 T_jup = 3.450 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456528.5 (2013-Aug-24.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08772781074314716 4.9526e-08  
q 2.299800028261526 1.2375e-07 au
tp 2457211.995957949433
(2015-Jul-08.49595795)
0.00011091 TDB
node 237.4699970540133 0.00023006 deg
peri 284.1036624925383 0.00023158 deg
i 1.250878489178574 4.2711e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      746  
   data-arc span      10745 days (29.42 yr)  
   first obs. used      1991-01-13  
   last obs. used      2020-06-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60051  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 00:17:56  

Additional Information
 Jupiter MOID = 2.23692 au 
 T_jup = 3.450 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.452854722648765E-15 -6.108217817467013E-15 -1.737433858510115E-12 5.52723498515843E-14 -4.107670779106981E-13 1.528819994895567E-16
q -6.108217817467013E-15 1.531393912746143E-14 4.35325427629209E-12 -1.378733872744311E-13 1.018820558135118E-12 -2.645834945409998E-16
tp -1.737433858510115E-12 4.35325427629209E-12 1.230125478565626E-8 -4.958013776592859E-11 2.972418000920224E-9 1.082715592141129E-12
node 5.52723498515843E-14 -1.378733872744311E-13 -4.958013776592859E-11 5.292707938797291E-8 -5.292443966764406E-8 7.3517697716294E-11
peri -4.107670779106981E-13 1.018820558135118E-12 2.972418000920224E-9 -5.292443966764406E-8 5.362978346342729E-8 -7.3241291613831E-11
i 1.528819994895567E-16 -2.645834945409998E-16 1.082715592141129E-12 7.3517697716294E-11 -7.3241291613831E-11 1.824260867165887E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.6   n/a MPO233902  

85824 (1998 XV20)          Discovered 1998-Dec-10 by Spacewatch at Kitt Peak
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1998 XV20 = 2001 ST96 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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