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100738 (1998 DB12)
Classification: Main-belt Asteroid          SPK-ID: 2100738
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2321660201937009 4.1179e-08  
a 2.286799436072231 8.846e-09 au
q 1.755882312018141 9.3511e-08 au
i 4.172259444098777 4.0277e-06 deg
node 137.0707761984756 7.3092e-05 deg
peri 186.5825722369961 7.4796e-05 deg
M 20.16590302955913 1.9059e-05 deg
tp 2458929.745231351165
(2020-Mar-21.24523135)
6.6664e-05 TDB
period 1263.108162141027
3.46
7.3291e-06
2.007e-08
d
yr
n .2850112213587341 1.6538e-09 deg/d
Q 2.81771656012632 1.09e-08 au
  Orbit Determination Parameters
   # obs. used (total)      625  
   data-arc span      9787 days (26.80 yr)  
   first obs. used      1994-01-12  
   last obs. used      2020-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58455  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:04:30  

Additional Information
 Earth MOID = .743684 au 
 Jupiter MOID = 2.51664 au 
 T_jup = 3.562 
[ 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 16.0   n/a MPO436469  

100738 (1998 DB12)          Discovered 1998-Feb-23 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1998 DB12 = 1999 TL93 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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