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JPL Small-Body Database Browser
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39961 (1998 FH123)
Classification: Main-belt Asteroid          SPK-ID: 2039961
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2548019742435164 6.2444e-08  
a 2.595323396690409 1.0299e-08 au
q 1.934029871413304 1.5798e-07 au
i 1.830135462314986 4.9636e-06 deg
node 283.4255641395021 0.00017473 deg
peri 299.6183066483512 0.00017503 deg
M 93.9887392487243 7.668e-06 deg
tp 2458601.788306414627
(2019-Apr-28.28830641)
3.2746e-05 TDB
period 1527.163901101935
4.18
9.0902e-06
2.489e-08
d
yr
n .2357310827870143 1.4031e-09 deg/d
Q 3.256616921967514 1.2923e-08 au
  Orbit Determination Parameters
   # obs. used (total)      571  
   data-arc span      8742 days (23.93 yr)  
   first obs. used      1995-08-22  
   last obs. used      2019-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5551  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 05:40:21  

Additional Information
 Earth MOID = .926171 au 
 Jupiter MOID = 1.73528 au 
 T_jup = 3.370 
[ 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 15.9   n/a MPO474256  

39961 (1998 FH123)          Discovered 1998-Mar-20 by LINEAR at Socorro
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 FH123 = 1995 QZ10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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