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59989 (1999 SL16)
Classification: Main-belt Asteroid          SPK-ID: 2059989
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2100957940379246 3.5572e-08  
a 2.350414003073108 8.0578e-09 au
q 1.856601906779606 8.6194e-08 au
i 5.011978457107034 3.85e-06 deg
node 264.4444010832698 5.1824e-05 deg
peri 1.316863490024959 5.2966e-05 deg
M 82.38290172706438 1.1398e-05 deg
tp 2459095.303750526193
(2020-Sep-02.80375053)
4.1468e-05 TDB
period 1316.179055816734
3.60
6.7683e-06
1.853e-08
d
yr
n .2735190158276813 1.4065e-09 deg/d
Q 2.84422609936661 9.7507e-09 au
  Orbit Determination Parameters
   # obs. used (total)      892  
   data-arc span      9137 days (25.02 yr)  
   first obs. used      1995-07-16  
   last obs. used      2020-07-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51449  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 22:14:55  

Additional Information
 Earth MOID = .840722 au 
 Jupiter MOID = 2.24477 au 
 T_jup = 3.523 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.72   n/a E2021B10  
diameter diameter 1.945 km 0.193 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.323   0.091 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

59989 (1999 SL16)          Discovered 1999-Sep-29 by CSS at Catalina
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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