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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04921231052163716 5.6112e-08  
a 2.833550664849279 2.2397e-08 AU
q 2.694105089651925 1.5598e-07 AU
i 3.164303196031808 5.1997e-06 deg
node 116.9658906933893 0.00011267 deg
peri 313.4539833252656 0.00013249 deg
M 143.8906699934526 6.68e-05 deg
tp 2456304.154081409498
(2013-Jan-11.65408141)
0.00032425 JED
period 1742.187528239236
4.77
2.0656e-05
5.655e-08
d
yr
n .206636767951059 2.4499e-09 deg/d
Q 2.972996240046633 2.3499e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1159  
   data-arc span      9638 days (26.39 yr)  
   first obs. used      1988-11-06  
   last obs. used      2015-03-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5248  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 16:36:31  

Additional Information
 Earth MOID = 1.70935 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 13.3 mag n/a MPO302127  

9944 (1990 DA3)          Discovered 1990-Feb-24 by Debehogne, H. at La Silla
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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