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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2321402251777101 3.9213e-08  
a 2.286993313882021 7.9412e-09 au
q 1.756090171017531 8.8049e-08 au
i 4.172244385487767 3.3341e-06 deg
node 137.0699474039911 6.8282e-05 deg
peri 186.6130640148889 7.0185e-05 deg
M 77.14320840482668 1.8858e-05 deg
tp 2458929.798310795567
(2020-Mar-21.29831080)
6.5508e-05 TDB
period 1263.268797457724
3.46
6.5797e-06
1.801e-08
d
yr
n .2849749797703269 1.4843e-09 deg/d
Q 2.81789645674651 9.7846e-09 au
  Orbit Determination Parameters
   # obs. used (total)      741  
   data-arc span      9892 days (27.08 yr)  
   first obs. used      1994-01-12  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56971  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:33:33  

Additional Information
 Earth MOID = .741936 au 
 Jupiter MOID = 2.51657 au 
 T_jup = 3.561 
[ 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 16.14   n/a E2021B55  

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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