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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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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2276259213739969 5.2723e-08  
a 2.728991385148218 1.4177e-08 au
q 2.107802206682155 1.4214e-07 au
i 1.438381454346069 5.7039e-06 deg
node 350.4405487626771 0.00020247 deg
peri 40.14790917705725 0.00020287 deg
M 221.450559119736 1.2408e-05 deg
tp 2459634.229539007757
(2022-Feb-23.72953901)
5.9029e-05 TDB
period 1646.651423443535
4.51
1.2831e-05
3.513e-08
d
yr
n .2186255056016382 1.7036e-09 deg/d
Q 3.350180563614281 1.7404e-08 au
  Orbit Determination Parameters
   # obs. used (total)      469  
   data-arc span      9386 days (25.70 yr)  
   first obs. used      1994-08-10  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55506  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 13:42:09  

Additional Information
 Earth MOID = 1.11357 au 
 Jupiter MOID = 2.10016 au 
 T_jup = 3.317 
[ 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 16.0   n/a MPO293826  

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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