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85577 (1998 DC2)
Classification: Outer Main-belt Asteroid          SPK-ID: 2085577
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2144770401094905 6.1887e-08  
a 3.980980788495964 3.5598e-08 au
q 3.127151812246605 2.5645e-07 au
i 4.521471192004248 6.4656e-06 deg
node 28.68931810315161 6.4484e-05 deg
peri 4.603548062002104 6.5633e-05 deg
M 11.35292035939398 1.1918e-05 deg
tp 2458909.006837371215
(2020-Feb-29.50683737)
9.5686e-05 TDB
period 2901.239285018714
7.94
3.8914e-05
1.065e-07
d
yr
n .1240849046333239 1.6643e-09 deg/d
Q 4.834809764745324 4.3233e-08 au
  Orbit Determination Parameters
   # obs. used (total)      691  
   data-arc span      8924 days (24.43 yr)  
   first obs. used      1995-08-29  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53797  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 20:34:48  

Additional Information
 Earth MOID = 2.13352 au 
 Jupiter MOID = .626226 au 
 T_jup = 3.010 
[ 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 13.6   n/a MPO502666  
diameter diameter 10.811 km 0.721 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  
geometric albedo albedo 0.042   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  

85577 (1998 DC2)          Discovered 1998-Feb-21 by Galad, A., Pravda, A. at Modra
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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