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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1150946330945733 3.3387e-08  
a 2.257069187779138 7.4988e-09 au
q 1.997292637742632 7.5316e-08 au
i 5.140931685371614 3.4996e-06 deg
node 121.9024013782328 3.8895e-05 deg
peri 246.7549660593394 4.1477e-05 deg
M 164.9508280655996 1.4484e-05 deg
tp 2458432.997558509619
(2018-Nov-10.49755851)
4.9342e-05 TDB
period 1238.556249352615
3.39
6.1724e-06
1.69e-08
d
yr
n .2906610016203701 1.4485e-09 deg/d
Q 2.516845737815644 8.3618e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1328  
   data-arc span      10454 days (28.62 yr)  
   first obs. used      1991-09-12  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51443  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 06:22:53  

Additional Information
 Earth MOID = 1.00238 au 
 Jupiter MOID = 2.9388 au 
 T_jup = 3.609 
[ 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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