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JPL Small-Body Database Browser
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201089 (2002 GU77)
Classification: Main-belt Asteroid          SPK-ID: 2201089
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1930448407392489 4.4603e-08  
a 2.742839745277636 2.8051e-08 au
q 2.213348683477232 1.1677e-07 au
i 8.617009066903947 7.3282e-06 deg
node 46.96516712477796 3.5735e-05 deg
peri 257.2884291922899 4.1942e-05 deg
M 178.940328091148 2.2172e-05 deg
tp 2457775.783266641569
(2017-Jan-22.28326664)
0.00010152 TDB
period 1659.201294510885
4.54
2.5453e-05
6.969e-08
d
yr
n .216971865433678 3.3285e-09 deg/d
Q 3.272330807078039 3.3467e-08 au
  Orbit Determination Parameters
   # obs. used (total)      414  
   data-arc span      7025 days (19.23 yr)  
   first obs. used      1999-10-11  
   last obs. used      2019-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5564  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 16:38:03  

Additional Information
 Earth MOID = 1.21709 au 
 Jupiter MOID = 2.03264 au 
 T_jup = 3.306 
[ 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 MPO436979  
diameter diameter 3.846 km 0.384 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.091   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

201089 (2002 GU77)          Discovered 2002-Apr-09 by LINEAR at Socorro
Reference: 20081212/Numbers.arcLast Updated: 2008-12-12

Alternate Designations
 2002 GU77 = 2007 JT9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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