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48974 (1998 QS39)
Classification: Main-belt Asteroid          SPK-ID: 2048974
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1873579378851997 2.9244e-08  
a 2.425971685995698 8.6766e-09 au
q 1.971446633539663 7.2957e-08 au
i 3.421694389173026 3.1991e-06 deg
node 113.5114420159565 8.6951e-05 deg
peri 181.809451787082 8.8049e-05 deg
M 302.214795465893 1.4676e-05 deg
tp 2459222.034399667308
(2021-Jan-07.53439967)
5.6245e-05 TDB
period 1380.152316206793
3.78
7.4043e-06
2.027e-08
d
yr
n .2608407751612685 1.3994e-09 deg/d
Q 2.880496738451733 1.0302e-08 au
  Orbit Determination Parameters
   # obs. used (total)      960  
   data-arc span      9480 days (25.95 yr)  
   first obs. used      1994-07-11  
   last obs. used      2020-06-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5606  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:34:54  

Additional Information
 Earth MOID = .95545 au 
 Jupiter MOID = 2.31838 au 
 T_jup = 3.484 
[ 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 15.5   n/a MPO351179  

48974 (1998 QS39)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 QS39 = 1994 NR4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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