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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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1260285422098654 3.7888e-08  
a 2.380521818134981 9.98e-09 au
q 2.080508123696651 9.4106e-08 au
i 2.57032229877853 4.1979e-06 deg
node 5.4506187529747 8.0338e-05 deg
peri 242.6113664123553 8.2228e-05 deg
M 312.649981663736 2.0164e-05 deg
tp 2459176.951082489402
(2020-Nov-23.45108249)
7.5636e-05 TDB
period 1341.549421270972
3.67
8.4364e-06
2.31e-08
d
yr
n .2683464315902274 1.6875e-09 deg/d
Q 2.680535512573311 1.1238e-08 au
  Orbit Determination Parameters
   # obs. used (total)      965  
   data-arc span      10042 days (27.49 yr)  
   first obs. used      1992-10-22  
   last obs. used      2020-04-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50532  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 08:46:45  

Additional Information
 Earth MOID = 1.0683 au 
 Jupiter MOID = 2.34499 au 
 T_jup = 3.526 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457046.5 (2015-Jan-24.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1267357523981755 3.7785e-08  
q 2.078636138185629 9.3896e-08 au
tp 2456493.247237547631
(2013-Jul-19.74723755)
6.9342e-05 TDB
node 5.474884284991524 8.0311e-05 deg
peri 242.5406445227679 8.2188e-05 deg
i 2.571574001742469 4.1979e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      965  
   data-arc span      10042 days (27.49 yr)  
   first obs. used      1992-10-22  
   last obs. used      2020-04-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50532  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 08:46:45  

Additional Information
 Jupiter MOID = 2.34499 au 
 T_jup = 3.526 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.427673671639945E-15 -3.535169963346483E-15 -7.805665567731462E-13 -3.941053093930327E-15 -1.702244125641415E-13 -2.288115913875051E-17
q -3.535169963346483E-15 8.816476185014723E-15 2.006747646538165E-12 9.177435662242059E-15 4.450663614870558E-13 1.431574554411562E-16
tp -7.805665567731462E-13 2.006747646538165E-12 4.808299705608631E-9 1.942398356338095E-11 1.220443410007147E-9 1.024186105726133E-12
node -3.941053093930327E-15 9.177435662242059E-15 1.942398356338095E-11 6.449890615121181E-9 -6.438177303264605E-9 -2.383721710187152E-11
peri -1.702244125641415E-13 4.450663614870558E-13 1.220443410007147E-9 -6.438177303264605E-9 6.754813984973309E-9 2.410513003884855E-11
i -2.288115913875051E-17 1.431574554411562E-16 1.024186105726133E-12 -2.383721710187152E-11 2.410513003884855E-11 1.762246112633455E-11

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 19 CATAB v2.0f-lin.ifort 2020-May-20 08:46:54 2020-May-20 08:46
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 19 CATAB v2.0f-lin.ifort 2020-May-20 08:46:54 2020-May-20 08:46

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