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JPL Small-Body Database Browser
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52678 (1998 DC21)
Classification: Main-belt Asteroid          SPK-ID: 2052678
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 .05812189444210385 3.9852e-08  
a 2.984223559102892 1.8792e-08 au
q 2.810774832409074 1.1536e-07 au
i 9.527917883160544 5.0021e-06 deg
node 340.2660848987611 2.6871e-05 deg
peri 145.3321778775166 5.1939e-05 deg
M 144.2412847215764 4.3913e-05 deg
tp 2458246.046391813486
(2018-May-07.54639181)
0.00022917 TDB
period 1882.978922930497
5.16
1.7786e-05
4.87e-08
d
yr
n .1911864204192625 1.8059e-09 deg/d
Q 3.15767228579671 1.9884e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1065  
   data-arc span      7748 days (21.21 yr)  
   first obs. used      1998-02-22  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57684  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:47:36  

Additional Information
 Earth MOID = 1.83076 au 
 Jupiter MOID = 1.86818 au 
 T_jup = 3.235 
[ 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 13.9   n/a MPO263767  
diameter diameter 6.341 km 0.297 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.101   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

52678 (1998 DC21)          Discovered 1998-Feb-22 by Spacewatch at Kitt Peak
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 DC21 = 2000 NV16 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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