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160180 (2001 WH77)
Classification: Main-belt Asteroid          SPK-ID: 2160180
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09957146568973765 6.5905e-08  
a 2.687739901423595 2.4464e-08 au
q 2.420117700046057 1.8281e-07 au
i 8.324645288319749 5.1106e-06 deg
node 65.42096236475049 4.6895e-05 deg
peri 82.36973822412521 5.7503e-05 deg
M 353.0923571085105 3.1251e-05 deg
tp 2459031.382088396556
(2020-Jun-30.88208840)
0.00013975 TDB
period 1609.456655099744
4.41
2.1974e-05
6.016e-08
d
yr
n .2236779716056966 3.0539e-09 deg/d
Q 2.955362102801133 2.69e-08 au
  Orbit Determination Parameters
   # obs. used (total)      301  
   data-arc span      7474 days (20.46 yr)  
   first obs. used      1999-05-19  
   last obs. used      2019-11-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60167  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 13:50:05  

Additional Information
 Earth MOID = 1.449 au 
 Jupiter MOID = 2.09066 au 
 T_jup = 3.351 
[ 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 16.2   n/a MPO454059  

160180 (2001 WH77)          Discovered 2001-Nov-20 by LINEAR at Socorro
Reference: 20070730/Numbers.arcLast Updated: 2007-08-06

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