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27694 (1981 EX34)
Classification: Main-belt Asteroid          SPK-ID: 2027694
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02315923727233562 3.5945e-08  
a 2.764836607935651 1.541e-08 au
q 2.70080510091323 9.7862e-08 au
i 7.653413206151225 5.2277e-06 deg
node 161.3012471314745 2.7842e-05 deg
peri 81.30698492663247 0.0001211 deg
M 122.0704124140726 0.00011638 deg
tp 2458431.109070291318
(2018-Nov-08.60907029)
0.00054355 TDB
period 1679.200804203187
4.60
1.4039e-05
3.844e-08
d
yr
n .2143877010414051 1.7924e-09 deg/d
Q 2.828868114958073 1.5767e-08 au
  Orbit Determination Parameters
   # obs. used (total)      789  
   data-arc span      14144 days (38.72 yr)  
   first obs. used      1981-02-02  
   last obs. used      2019-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56099  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 05:01:33  

Additional Information
 Earth MOID = 1.70173 au 
 Jupiter MOID = 2.15614 au 
 T_jup = 3.326 
[ 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 14.9   n/a MPO426073  
diameter diameter 5.273 km 0.206 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.076   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

27694 (1981 EX34)          Discovered 1981-Mar-02 by Bus, S. J. at Siding Spring
Reference: 20010902/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1981 EX34 = 1995 FL15 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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