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2738 Viracocha (1940 EC)
Classification: Main-belt Asteroid          SPK-ID: 2002738
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .114223941571995 3.9616e-08  
a 2.719795062836502 1.1549e-08 au
q 2.409129350491265 1.0948e-07 au
i 1.114324724095203 3.3463e-06 deg
node 290.6683184886241 0.00020127 deg
peri 266.2528993007645 0.00020185 deg
M 298.4865748511216 1.7319e-05 deg
tp 2459280.443319149895
(2021-Mar-06.94331915)
7.9626e-05 TDB
period 1638.334959401941
4.49
1.0436e-05
2.857e-08
d
yr
n .2197352854702036 1.3996e-09 deg/d
Q 3.030460775181739 1.2869e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2366  
   data-arc span      23983 days (65.66 yr)  
   first obs. used      1954-06-05  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46085  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 16:29:44  

Additional Information
 Earth MOID = 1.40771 au 
 Jupiter MOID = 1.9315 au 
 T_jup = 3.349 
[ 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 12.5   n/a MPO416738  

2738 Viracocha (1940 EC)          Discovered 1940-Mar-12 by Kulin, G. at Budapest
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1940 EC = 1949 FC1 = 1954 LK = 1971 BL1 = 1974 XZ = 1976 GN5 = 1978 TD3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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