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70937 (1999 WT2)
Classification: Main-belt Asteroid          SPK-ID: 2070937
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2273262826194158 4.7166e-08  
a 2.730329938567816 1.3587e-08 au
q 2.109654183308696 1.2842e-07 au
i 1.438331180782175 5.0129e-06 deg
node 350.4254110487037 0.00019915 deg
peri 40.0465133614116 0.00019943 deg
M 265.2832054729885 1.2127e-05 deg
tp 2459634.056413350847
(2022-Feb-23.55641335)
5.7385e-05 TDB
period 1647.863080520462
4.51
1.23e-05
3.368e-08
d
yr
n .2184647524758534 1.6307e-09 deg/d
Q 3.351005693826935 1.6676e-08 au
  Orbit Determination Parameters
   # obs. used (total)      492  
   data-arc span      9470 days (25.93 yr)  
   first obs. used      1994-08-10  
   last obs. used      2020-07-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55197  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:58:31  

Additional Information
 Earth MOID = 1.11421 au 
 Jupiter MOID = 2.10071 au 
 T_jup = 3.316 
[ 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 15.99   n/a E2021B10  

70937 (1999 WT2)          Discovered 1999-Nov-29 by Klet at Klet
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 WT2 = 1994 RJ17 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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