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27766 (1991 TO)
Classification: Main-belt Asteroid          SPK-ID: 2027766
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 .1148643573482869 3.5074e-08  
a 2.257455892965677 8.2369e-09 au
q 1.998154672578071 8.015e-08 au
i 5.140476193965156 3.5743e-06 deg
node 121.9024645950033 4.4341e-05 deg
peri 246.82144089716 4.7411e-05 deg
M 48.65281140700087 1.5622e-05 deg
tp 2458433.070192596366
(2018-Nov-10.57019260)
5.3802e-05 TDB
period 1238.874567002616
3.39
6.7806e-06
1.856e-08
d
yr
n .2905863188966732 1.5904e-09 deg/d
Q 2.516757113353282 9.1831e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1177  
   data-arc span      9993 days (27.36 yr)  
   first obs. used      1991-09-12  
   last obs. used      2019-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54104  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 01:05:23  

Additional Information
 Earth MOID = 1.00242 au 
 Jupiter MOID = 2.93566 au 
 T_jup = 3.608 
[ 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 15.6   n/a MPO449167  
diameter diameter 2.193 km 0.239 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.278   0.057 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

27766 (1991 TO)          Discovered 1991-Oct-01 by McNaught, R. H. at Siding Spring
Reference: 20010902/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1991 TO = 1997 LA14 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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