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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2545991944109856 6.3076e-08  
a 2.596182147082998 1.0932e-08 au
q 1.935196263891484 1.5975e-07 au
i 1.829713211428449 5.3509e-06 deg
node 283.4314002686307 0.00020498 deg
peri 299.7598440383691 0.00020523 deg
M 359.6227030276394 9.4627e-06 deg
tp 2458602.101334221838
(2019-Apr-28.60133422)
4.0163e-05 TDB
period 1527.921934424433
4.18
9.6503e-06
2.642e-08
d
yr
n .2356141317753984 1.4881e-09 deg/d
Q 3.257168030274511 1.3715e-08 au
  Orbit Determination Parameters
   # obs. used (total)      469  
   data-arc span      8661 days (23.71 yr)  
   first obs. used      1995-08-22  
   last obs. used      2019-05-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57812  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:12:09  

Additional Information
 Earth MOID = .927392 au 
 Jupiter MOID = 1.73549 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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