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JPL Small-Body Database Browser
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59990 (1999 SA17)
Classification: Main-belt Asteroid          SPK-ID: 2059990
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1879822965371023 4.9199e-08  
a 3.077823180833947 2.9776e-08 au
q 2.499246910965653 1.6111e-07 au
i 25.88896639387637 9.4341e-06 deg
node 193.6402556322174 1.2013e-05 deg
peri 93.17195441475914 2.6741e-05 deg
M 262.8072569282524 2.5779e-05 deg
tp 2459132.970148032695
(2020-Oct-10.47014803)
0.00014425 TDB
period 1972.258907748549
5.40
2.8621e-05
7.836e-08
d
yr
n .1825318159728641 2.6488e-09 deg/d
Q 3.656399450702242 3.5374e-08 au
  Orbit Determination Parameters
   # obs. used (total)      511  
   data-arc span      8970 days (24.56 yr)  
   first obs. used      1994-10-09  
   last obs. used      2019-05-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60355  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 03:41:17  

Additional Information
 Earth MOID = 1.643 au 
 Jupiter MOID = 1.89615 au 
 T_jup = 3.050 
[ 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 14.3   n/a MPO257257  
diameter diameter 7.257 km 0.153 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.053   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

59990 (1999 SA17)          Discovered 1999-Sep-30 by CSS at Catalina
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 SA17 = 1998 HU115 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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