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JPL Small-Body Database Browser
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19928 (1981 DB3)
Classification: Main-belt Asteroid          SPK-ID: 2019928
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2045273547560418 5.2508e-08  
a 2.610959452663172 1.6346e-08 au
q 2.076946822434691 1.4255e-07 au
i 8.114240800555649 4.0446e-06 deg
node 231.4681200615651 3.3658e-05 deg
peri 131.1893095801525 3.4762e-05 deg
M 286.3654278783766 1.249e-05 deg
tp 2459315.693958688465
(2021-Apr-11.19395869)
5.5795e-05 TDB
period 1540.985733446342
4.22
1.4471e-05
3.962e-08
d
yr
n .2336166988352819 2.1938e-09 deg/d
Q 3.144972082891653 1.9689e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1154  
   data-arc span      25364 days (69.44 yr)  
   first obs. used      1949-11-21  
   last obs. used      2019-05-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51221  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:47:30  

Additional Information
 Earth MOID = 1.08578 au 
 Jupiter MOID = 2.3732 au 
 T_jup = 3.366 
[ 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 14.3   n/a MPO279722  
rotation period rot_per 3.429 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

19928 (1981 DB3)          Discovered 1981-Feb-28 by Bus, S. J. at Siding Spring
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1981 DB3 = 1991 RO4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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