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74792 (1999 SS9)
Classification: Main-belt Asteroid          SPK-ID: 2074792
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2270506563735708 3.6455e-08  
a 2.545724454680019 1.1655e-08 au
q 1.96771604629867 9.6582e-08 au
i 5.725012270790565 4.2134e-06 deg
node 65.02661597508482 8.0568e-05 deg
peri 9.016145257694431 8.5203e-05 deg
M 356.8156934046141 2.8819e-05 deg
tp 2459013.622841827167
(2020-Jun-13.12284183)
0.00011883 TDB
period 1483.595538389892
4.06
1.0188e-05
2.789e-08
d
yr
n .2426537359304131 1.6664e-09 deg/d
Q 3.123732863061368 1.4301e-08 au
  Orbit Determination Parameters
   # obs. used (total)      895  
   data-arc span      10298 days (28.19 yr)  
   first obs. used      1991-11-13  
   last obs. used      2020-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56476  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 17:22:10  

Additional Information
 Earth MOID = .982862 au 
 Jupiter MOID = 2.16833 au 
 T_jup = 3.400 
[ 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 15.2   n/a MPO359268  

74792 (1999 SS9)          Discovered 1999-Sep-29 by Korlevic, K. at Visnjan
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 SS9 = 1991 VW13 = 1995 YO12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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