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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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04921230822904787 5.3626e-08  
a 2.833550663989353 2.0574e-08 AU
q 2.694105095330485 1.5118e-07 AU
i 3.164306219039639 4.9811e-06 deg
node 116.965964516628 0.00010653 deg
peri 313.453913107972 0.00012078 deg
M 143.8906669361989 5.6557e-05 deg
tp 2456304.154096521792
(2013-Jan-11.65409652)
0.00027279 JED
period 1742.187527446157
4.77
1.8974e-05
5.195e-08
d
yr
n .2066367680451242 2.2505e-09 deg/d
Q 2.97299623264822 2.1586e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1247  
   data-arc span      9724 days (26.62 yr)  
   first obs. used      1988-11-06  
   last obs. used      2015-06-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51149  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 12:03:26  

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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