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9944 (1990 DA3)
Classification: Main-belt Asteroid          SPK-ID: 2009944
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04930353436055292 5.6199e-08  
a 2.833566594148222 2.2594e-08 AU
q 2.693861746210721 1.563e-07 AU
i 3.164301993867228 5.2134e-06 deg
node 116.9665045074799 0.00011294 deg
peri 313.5296629399489 0.00013278 deg
M 102.4742795847661 6.6907e-05 deg
tp 2456304.580785246375
(2013-Jan-12.08078525)
0.00032456 JED
period 1742.202219276156
4.77
2.0838e-05
5.705e-08
d
yr
n .2066350254963924 2.4715e-09 deg/d
Q 2.973271442085724 2.3708e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1141  
   data-arc span      9358 days (25.62 yr)  
   first obs. used      1988-11-06  
   last obs. used      2014-06-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5277  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:23:00  

Additional Information
 Earth MOID = 1.70855 AU 
 T_jup = 3.308 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.2 mag n/a MPO256938  

9944 (1990 DA3)          Discovered 1990-Feb-24 by Debehogne, H. at La Silla (809)
Reference: 19990202/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1990 DA3 = 1993 VD8 = 1995 FT6 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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