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27737 (1990 SA8)
Classification: Main-belt Asteroid          SPK-ID: 2027737
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .167153146652506 3.8168e-08  
a 2.432703822179636 9.1032e-09 au
q 2.026069723428731 9.3897e-08 au
i 3.271564734666335 3.8692e-06 deg
node 100.17797817035 8.2133e-05 deg
peri 354.16480678051 8.3297e-05 deg
M 118.8223320461257 1.3914e-05 deg
tp 2458143.066618802612
(2018-Jan-24.56661880)
5.2922e-05 TDB
period 1385.901239231142
3.79
7.7791e-06
2.13e-08
d
yr
n .2597587691022757 1.458e-09 deg/d
Q 2.839337920930541 1.0625e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1215  
   data-arc span      10466 days (28.65 yr)  
   first obs. used      1990-09-14  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55892  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 03:28:49  

Additional Information
 Earth MOID = 1.04293 au 
 Jupiter MOID = 2.33531 au 
 T_jup = 3.485 
[ 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 14.6   n/a MPO435956  
diameter diameter 3.338 km 0.596 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
geometric albedo albedo 0.229   0.128 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

27737 (1990 SA8)          Discovered 1990-Sep-22 by Elst, E. W. at La Silla
Reference: 20010902/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1990 SA8 = 1998 VG4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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