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19929 (1981 DL3)
Classification: Main-belt Asteroid          SPK-ID: 2019929
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1224806399340484 4.2521e-08  
a 2.277099307737162 5.9672e-09 au
q 1.998198727332136 9.7802e-08 au
i 5.715440394303105 2.86e-06 deg
node 283.4381871098097 4.4453e-05 deg
peri 88.4034231672197 4.638e-05 deg
M 13.46274825982448 1.2062e-05 deg
tp 2459153.564374715199
(2020-Oct-31.06437472)
4.2069e-05 TDB
period 1255.079926953098
3.44
4.9335e-06
1.351e-08
d
yr
n .2868343220769661 1.1275e-09 deg/d
Q 2.555999888142188 6.6981e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1635  
   data-arc span      23858 days (65.32 yr)  
   first obs. used      1955-11-11  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47106  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:09:23  

Additional Information
 Earth MOID = 1.00641 au 
 Jupiter MOID = 2.93377 au 
 T_jup = 3.592 
[ 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 15.16   n/a E2021B10  
rotation period rot_per 44.1335 h n/a LCDB (Rev. 2020-October); 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]

19929 (1981 DL3)          Discovered 1981-Feb-28 by Bus, S. J. at Siding Spring
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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