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58960 (1998 QH99)
Classification: Main-belt Asteroid          SPK-ID: 2058960
[ 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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1896902431921306 3.3253e-08  
a 2.388939473477792 8.0062e-09 au
q 1.935780963782509 8.319e-08 au
i 3.197436634074997 3.1513e-06 deg
node 45.84057736450632 6.6124e-05 deg
peri 353.835926430247 6.6851e-05 deg
M 285.6930198445414 1.0491e-05 deg
tp 2459278.876940743973
(2021-Mar-05.37694074)		 3.991e-05 TDB
period 1348.671396121437
3.69		 6.7799e-06
1.856e-08		 d
yr
n .2669293654742751 1.3419e-09 deg/d
Q 2.842097983173074 9.5249e-09 au
   Orbit Determination Parameters
   # obs. used (total)      1087  
   data-arc span      16095 days (44.07 yr)  
   first obs. used      1976-10-22  
   last obs. used      2020-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52901  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 21:40:59  

Additional Information
 Earth MOID = .943769 au 
 Jupiter MOID = 2.5715 au 
 T_jup = 3.507 
[ 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 15.8   n/a MPO436194  

58960 (1998 QH99)          Discovered 1998-Aug-26 by Elst, E. W. at La Silla
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 QH99 = 1976 UC7 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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