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85491 (1997 SL11)
Classification: Main-belt Asteroid          SPK-ID: 2085491
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1745428010620773 4.7595e-08  
a 2.336061747341056 1.182e-08 au
q 1.928318986506177 1.0927e-07 au
i 2.601851937780944 7.6589e-06 deg
node 358.0343591924947 0.00010141 deg
peri 299.4705966216796 0.00010417 deg
M 56.78833831950367 2.653e-05 deg
tp 2458394.777608617439
(2018-Oct-03.27760862)
9.5395e-05 TDB
period 1304.142066651847
3.57
9.8978e-06
2.71e-08
d
yr
n .2760435455657342 2.095e-09 deg/d
Q 2.743804508175935 1.3883e-08 au
  Orbit Determination Parameters
   # obs. used (total)      446  
   data-arc span      8627 days (23.62 yr)  
   first obs. used      1996-02-14  
   last obs. used      2019-09-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56169  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 10:11:45  

Additional Information
 Earth MOID = .913459 au 
 Jupiter MOID = 2.46111 au 
 T_jup = 3.546 
[ 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 16.6   n/a MPO400789  
diameter diameter 2.560 km 0.818 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.068   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85491 (1997 SL11)          Discovered 1997-Sep-27 by Spacewatch at Kitt Peak
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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