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120860 (1998 QW59)
Classification: Main-belt Asteroid          SPK-ID: 2120860
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1659637203789626 4.9271e-08  
a 3.025261968756414 2.1136e-08 au
q 2.523178237300614 1.5076e-07 au
i 4.324772805528821 6.9073e-06 deg
node 166.1176916533841 7.1289e-05 deg
peri 152.0355667739246 7.5449e-05 deg
M 112.0490989513209 2.2114e-05 deg
tp 2458602.296738853521
(2019-Apr-28.79673885)		 0.00011849 TDB
period 1921.953643788707
5.26		 2.0142e-05
5.515e-08		 d
yr
n .1873094084050536 1.963e-09 deg/d
Q 3.527345700212213 2.4644e-08 au
   Orbit Determination Parameters
   # obs. used (total)      252  
   data-arc span      8651 days (23.69 yr)  
   first obs. used      1997-04-30  
   last obs. used      2021-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57184  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 09:26:05  

Additional Information
 Earth MOID = 1.50913 au 
 Jupiter MOID = 1.79608 au 
 T_jup = 3.220 
[ 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 MPO449702  

120860 (1998 QW59)          Discovered 1998-Aug-26 by Spacewatch at Kitt Peak
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

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Alternate Designations
 1998 QW59 = 1997 JV5 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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