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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04876275175502425 5.3425e-08  
a 2.834843839874957 2.0442e-08 au
q 2.696609053446875 1.5087e-07 au
i 3.164046503503785 4.9586e-06 deg
node 116.9660401678715 0.00010546 deg
peri 313.2625903136519 0.00011952 deg
M 268.016632585222 5.6344e-05 deg
tp 2458045.949977392463
(2017-Oct-19.44997739)
0.00027378 JED
period 1743.380312857766
4.77
1.8857e-05
5.163e-08
d
yr
n .2064953913640819 2.2336e-09 deg/d
Q 2.973078626303039 2.1439e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1251  
   data-arc span      9741 days (26.67 yr)  
   first obs. used      1988-11-06  
   last obs. used      2015-07-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51068  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 14:29:19  

Additional Information
 Earth MOID = 1.71056 au 
 Jupiter MOID = 2.16766 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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