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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04930360809115272 6.0143e-08  
a 2.833566611584446 2.388e-08 AU
q 2.693861553866711 1.6883e-07 AU
i 3.164300152389698 5.6621e-06 deg
node 116.9663602117736 0.00011984 deg
peri 313.5298333121905 0.00014074 deg
M 102.4742505142395 7.0835e-05 deg
tp 2456304.580921354329
(2013-Jan-12.08092135)
0.00034339 JED
period 1742.202235357
4.77
2.2023e-05
6.03e-08
d
yr
n .2066350235891135 2.6121e-09 deg/d
Q 2.973271669302181 2.5057e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1122  
   data-arc span      9280 days (25.41 yr)  
   first obs. used      1988-11-06  
   last obs. used      2014-04-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54212  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Apr-17 13:57:38  

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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