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27734 (1990 RA8)
Classification: Main-belt Asteroid          SPK-ID: 2027734
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1898564472091982 5.6115e-08  
a 2.393670371062303 8.8244e-09 au
q 1.939216618622491 1.3448e-07 au
i 2.530666838400684 6.5003e-06 deg
node 7.040948699451164 8.4297e-05 deg
peri 353.2536136484838 8.4926e-05 deg
M 254.5006408197647 1.0119e-05 deg
tp 2458996.907866228846
(2020-May-27.40786623)
3.8877e-05 TDB
period 1352.679608210547
3.70
7.4801e-06
2.048e-08
d
yr
n .2661384098753749 1.4717e-09 deg/d
Q 2.848124123502115 1.05e-08 au
  Orbit Determination Parameters
   # obs. used (total)      740  
   data-arc span      10469 days (28.66 yr)  
   first obs. used      1990-08-16  
   last obs. used      2019-04-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56586  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 01:05:12  

Additional Information
 Earth MOID = .935149 au 
 Jupiter MOID = 2.5994 au 
 T_jup = 3.504 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.9   n/a MPO435956  
diameter diameter 3.819 km 0.201 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.053   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

27734 (1990 RA8)          Discovered 1990-Sep-14 by Debehogne, H. at La Silla
Reference: 20010902/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1990 RA8 = 1990 QF7 = 1990 SN14 = 1996 EZ12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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