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JPL Small-Body Database Browser
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74790 (1999 SP6)
Classification: Main-belt Asteroid          SPK-ID: 2074790
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2630027855118065 6.963e-08  
a 2.466827527520286 1.996e-08 au
q 1.818045016405248 1.7873e-07 au
i 12.08066604309253 5.7873e-06 deg
node 107.6744187925078 2.7829e-05 deg
peri 199.6613930504184 3.0842e-05 deg
M 56.28307072677391 1.8405e-05 deg
tp 2458379.250708226364
(2018-Sep-17.75070823)
7.0803e-05 TDB
period 1415.163458745321
3.87
1.7176e-05
4.703e-08
d
yr
n .2543875746475074 3.0875e-09 deg/d
Q 3.115610038635323 2.5209e-08 au
  Orbit Determination Parameters
   # obs. used (total)      410  
   data-arc span      6903 days (18.90 yr)  
   first obs. used      1999-09-13  
   last obs. used      2018-08-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64591  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 02:31:25  

Additional Information
 Earth MOID = .806562 au 
 Jupiter MOID = 2.15404 au 
 T_jup = 3.409 
[ 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 MPO449471  
diameter diameter 2.001 km 0.376 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.190   0.105 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74790 (1999 SP6)          Discovered 1999-Sep-30 by LINEAR at Socorro
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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