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74101 (1998 QS30)
Classification: Main-belt Asteroid          SPK-ID: 2074101
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1577660067004717 6.2506e-08  
a 2.721661515951301 1.67e-08 au
q 2.292275846989313 1.7371e-07 au
i 13.44840908105754 6.7529e-06 deg
node 169.4433695153293 1.8481e-05 deg
peri 188.2065603102919 2.2839e-05 deg
M 289.5015253184135 1.5514e-05 deg
tp 2459321.663968289087
(2021-Apr-17.16396829)
7.2272e-05 TDB
period 1640.021704104614
4.49
1.5095e-05
4.133e-08
d
yr
n .2195092900898805 2.0204e-09 deg/d
Q 3.15104718491329 1.9335e-08 au
  Orbit Determination Parameters
   # obs. used (total)      672  
   data-arc span      7976 days (21.84 yr)  
   first obs. used      1998-08-17  
   last obs. used      2020-06-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59252  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 23:48:33  

Additional Information
 Earth MOID = 1.28856 au 
 Jupiter MOID = 2.29594 au 
 T_jup = 3.301 
[ 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 15.1   n/a MPO337816  

74101 (1998 QS30)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 QS30 = 2002 NY17 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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