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JPL Small-Body Database Browser
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39876 (1998 DB38)
Classification: Main-belt Asteroid          SPK-ID: 2039876
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1058512201072516 5.2071e-08  
a 2.375082165220796 1.0966e-08 au
q 2.123676820177202 1.2649e-07 au
i 2.179546098100269 5.2342e-06 deg
node 206.6121263432642 0.0001115 deg
peri 316.9274102513044 0.00011316 deg
M 22.39348654353174 2.0457e-05 deg
tp 2458917.335955911830
(2020-Mar-08.83595591)
7.5801e-05 TDB
period 1336.953752759372
3.66
9.2595e-06
2.535e-08
d
yr
n .2692688503674768 1.8649e-09 deg/d
Q 2.62648751026439 1.2127e-08 au
  Orbit Determination Parameters
   # obs. used (total)      944  
   data-arc span      7984 days (21.86 yr)  
   first obs. used      1998-02-27  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52492  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 05:52:31  

Additional Information
 Earth MOID = 1.13183 au 
 Jupiter MOID = 2.34972 au 
 T_jup = 3.533 
[ 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 15.3   n/a MPO459139  
diameter diameter 5.037 km 0.153 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.070   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

39876 (1998 DB38)          Discovered 1998-Feb-27 by JPL/GEODSS NEAT at Haleakala
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
2058-Feb-10 03:50 < 00:01 Eunom 0.0234215628798435 0.0234153214068467 0.0234278051190936 6.11284850447773 6.11284840643072 2472769.659775554 0.38493335060165 377.758403762985 52.9104946290323 34.9496097062358 38670.3305790604 T 22 CATAB v2.0f-lin.ifort 2020-Jan-29 05:52:47 2020-Jan-29 05:52

Alternate Designations
 1998 DB38 = 2000 UT44 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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