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101478 (1998 WN27)
Classification: Main-belt Asteroid          SPK-ID: 2101478
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1265313709802597 5.0309e-08  
a 2.653889034552587 1.4794e-08 au
q 2.318088816581171 1.406e-07 au
i 2.220333241831324 3.9141e-06 deg
node 236.1272212759054 0.00011637 deg
peri 106.5328732707571 0.00011823 deg
M 41.69094801180893 1.7195e-05 deg
tp 2458817.621842814632
(2019-Nov-30.12184281)
7.5839e-05 TDB
period 1579.147026546011
4.32
1.3204e-05
3.615e-08
d
yr
n .2279711730119329 1.9062e-09 deg/d
Q 2.989689252524004 1.6665e-08 au
  Orbit Determination Parameters
   # obs. used (total)      554  
   data-arc span      7723 days (21.14 yr)  
   first obs. used      1998-10-14  
   last obs. used      2019-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56308  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 08:37:45  

Additional Information
 Earth MOID = 1.31128 au 
 Jupiter MOID = 2.3935 au 
 T_jup = 3.376 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.1   n/a MPO449615  

101478 (1998 WN27)          Discovered 1998-Nov-18 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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