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85575 (1998 DC1)
Classification: Main-belt Asteroid          SPK-ID: 2085575
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1617270613613878 4.9147e-08  
a 3.139047766920625 2.3152e-08 au
q 2.631378796103526 1.6057e-07 au
i 13.06344383241256 6.1902e-06 deg
node 345.1838650998898 2.0573e-05 deg
peri 133.6458028658413 3.4192e-05 deg
M 20.70875866344462 2.1201e-05 deg
tp 2458883.645113032016
(2020-Feb-04.14511303)
0.00011996 TDB
period 2031.399370293151
5.56
2.2474e-05
6.153e-08
d
yr
n .1772177373216614 1.9606e-09 deg/d
Q 3.646716737737724 2.6896e-08 au
  Orbit Determination Parameters
   # obs. used (total)      787  
   data-arc span      8094 days (22.16 yr)  
   first obs. used      1998-02-19  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53112  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 15:38:04  

Additional Information
 Earth MOID = 1.66562 au 
 Jupiter MOID = 1.47545 au 
 T_jup = 3.151 
[ 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 14.5   n/a MPO379169  
diameter diameter 7.834 km 0.294 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.042   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85575 (1998 DC1)          Discovered 1998-Feb-19 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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