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344112 (1999 VD4)
Classification: Mars-crossing Asteroid          SPK-ID: 2344112
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3755651308308375 5.1083e-08  
a 2.636090880096675 1.2219e-08 au
q 1.64606706383119 1.3601e-07 au
i 5.958793783116532 6.4883e-06 deg
node 54.05835355100337 7.7447e-05 deg
peri 355.2206960085794 7.9231e-05 deg
M 285.966403087783 1.3816e-05 deg
tp 2459321.988427254785
(2021-Apr-17.48842725)
6.1206e-05 TDB
period 1563.288002188423
4.28
1.087e-05
2.976e-08
d
yr
n .2302838629197189 1.6012e-09 deg/d
Q 3.626114696362161 1.6809e-08 au
  Orbit Determination Parameters
   # obs. used (total)      180  
   data-arc span      7159 days (19.60 yr)  
   first obs. used      1999-10-02  
   last obs. used      2019-05-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57414  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 09:23:31  

Additional Information
 Earth MOID = .656619 au 
 Jupiter MOID = 1.77572 au 
 T_jup = 3.286 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.7   n/a MPO446551  

344112 (1999 VD4)          Discovered 1999-Nov-01 by CSS at Catalina
Reference: 20121128/Numbers.arcLast Updated: 2012-12-03

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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