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27703 (1984 SA2)
Classification: Main-belt Asteroid          SPK-ID: 2027703
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1066870958312389 2.8e-08  
a 2.274542119565311 6.7037e-09 au
q 2.031877826483057 6.2495e-08 au
i 4.530739724830097 3.3033e-06 deg
node 302.1637139421829 4.2723e-05 deg
peri 162.0007387308972 4.7694e-05 deg
M 70.40921207497288 1.9901e-05 deg
tp 2458755.443410220977
(2019-Sep-28.94341022)
6.9143e-05 TDB
period 1252.966333815947
3.43
5.5393e-06
1.517e-08
d
yr
n .2873181747059468 1.2702e-09 deg/d
Q 2.517206412647564 7.419e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2138  
   data-arc span      13044 days (35.71 yr)  
   first obs. used      1984-09-29  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48549  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 19:35:24  

Additional Information
 Earth MOID = 1.04927 au 
 Jupiter MOID = 2.58621 au 
 T_jup = 3.598 
[ 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 14.2   n/a MPO358888  
diameter diameter 5.364 km 0.048 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.202   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

27703 (1984 SA2)          Discovered 1984-Sep-29 by Mrkos, A. at Klet
Reference: 20010902/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1984 SA2 = 1989 CF4 = 1998 XU32 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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