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JPL Small-Body Database Browser
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39873 (1998 DC34)
Classification: Main-belt Asteroid          SPK-ID: 2039873
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1260285460733241 3.8477e-08  
a 2.380521819872296 1.048e-08 au
q 2.080508116017967 9.5024e-08 au
i 2.570322018917638 4.2361e-06 deg
node 5.450591904837185 8.5726e-05 deg
peri 242.6113944420459 8.7517e-05 deg
M 312.6499793647203 2.0635e-05 deg
tp 2459176.951091249907
(2020-Nov-23.45109125)
7.7457e-05 TDB
period 1341.549422739575
3.67
8.8587e-06
2.425e-08
d
yr
n .2683464312964668 1.772e-09 deg/d
Q 2.680535523726625 1.18e-08 au
  Orbit Determination Parameters
   # obs. used (total)      837  
   data-arc span      9965 days (27.28 yr)  
   first obs. used      1992-10-22  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52294  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 05:37:32  

Additional Information
 Earth MOID = 1.0683 au 
 Jupiter MOID = 2.34499 au 
 T_jup = 3.526 
[ 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 15.6   n/a MPO452721  
diameter diameter 4.426 km 0.229 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.039   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

39873 (1998 DC34)          Discovered 1998-Feb-27 by Elst, E. W. at La Silla
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1971-Aug-12 12:12 00:02 Ceres 0.0356574816446399 0.0356521815600796 0.0356627817370302 3.54051096519199 3.54050761881195 2441176.008100708 1.55828769006817 262.90923946931 22.9057916937597 -5.81838471507666 30719.9731615358 T 18 CATAB v2.0f-lin.ifort 2020-Feb-23 05:37:48 2020-Feb-23 05:37
2100-Aug-03 00:15 00:02 Vesta 0.0364697963928518 0.0364682356515164 0.0364713619330835 2.62942830763693 2.62942706684197 2488283.510369447 1.6035884409026 704.852197200978 27.8360031013969 84.099197981562 193084.856259027 T 18 CATAB v2.0f-lin.ifort 2020-Feb-23 05:37:48 2020-Feb-23 05:37

Alternate Designations
 1998 DC34 = 1999 RP15 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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