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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1068024639583655 3.3273e-08  
a 2.274867430615146 7.8991e-09 au
q 2.031905983846812 7.6822e-08 au
i 4.530375717973967 3.5688e-06 deg
node 302.1647130583816 4.9521e-05 deg
peri 162.1079143779263 5.404e-05 deg
M 315.4030224417139 2.0549e-05 deg
tp 2458755.751388162754
(2019-Sep-29.25138816)
7.1711e-05 TDB
period 1253.235147282019
3.43
6.5275e-06
1.787e-08
d
yr
n .2872565462122235 1.4962e-09 deg/d
Q 2.517828877383479 8.7427e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1774  
   data-arc span      12852 days (35.19 yr)  
   first obs. used      1984-09-29  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51934  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 01:40:38  

Additional Information
 Earth MOID = 1.04948 au 
 Jupiter MOID = 2.58679 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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