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85580 (1998 DO20)
Classification: Main-belt Asteroid          SPK-ID: 2085580
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03415048709977934 3.5005e-08  
a 2.632726486424382 1.5074e-08 au
q 2.542817594512498 9.488e-08 au
i 13.94593874323837 6.9439e-06 deg
node 332.6441646640408 1.5643e-05 deg
peri 95.30735103097508 0.00012942 deg
M 60.91748281725162 0.00012491 deg
tp 2458336.474125618439
(2018-Aug-05.97412562)
0.00054179 TDB
period 1560.29616428019
4.27
1.3401e-05
3.669e-08
d
yr
n .2307254278011241 1.9816e-09 deg/d
Q 2.722635378336265 1.5589e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1322  
   data-arc span      7804 days (21.37 yr)  
   first obs. used      1998-01-08  
   last obs. used      2019-05-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48704  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:33:14  

Additional Information
 Earth MOID = 1.59837 au 
 Jupiter MOID = 2.37144 au 
 T_jup = 3.356 
[ 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 14.0   n/a MPO337903  
diameter diameter 4.394 km 0.122 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.303   0.049 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85580 (1998 DO20)          Discovered 1998-Feb-28 by Boeuf, M. at Les Tardieux
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1998 DO20 = 2000 QJ119 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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