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74798 (1999 SN15)
Classification: Main-belt Asteroid          SPK-ID: 2074798
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2468756475224622 3.9096e-08  
a 2.3338181298201 9.6193e-09 au
q 1.757655267821101 9.0941e-08 au
i 5.622579714062348 4.3739e-06 deg
node 308.199957669396 4.4854e-05 deg
peri 359.108822132388 4.5771e-05 deg
M 326.6820381313496 1.1653e-05 deg
tp 2459121.024369102944
(2020-Sep-28.52436910)
4.2657e-05 TDB
period 1302.263717333962
3.57
8.0513e-06
2.204e-08
d
yr
n .2764417031728443 1.7091e-09 deg/d
Q 2.909980991819098 1.1994e-08 au
  Orbit Determination Parameters
   # obs. used (total)      862  
   data-arc span      7729 days (21.16 yr)  
   first obs. used      1998-02-28  
   last obs. used      2019-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52927  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 17:22:10  

Additional Information
 Earth MOID = .742836 au 
 Jupiter MOID = 2.35782 au 
 T_jup = 3.521 
[ 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 15.5   n/a MPO468696  

74798 (1999 SN15)          Discovered 1999-Sep-30 by CSS at Catalina
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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