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227957 (2007 GR69)
Classification: Main-belt Asteroid          SPK-ID: 2227957
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07650983323315012 7.8932e-08  
a 2.769993319029939 2.6456e-08 au
q 2.558061592134019 2.1285e-07 au
i .4520936959329559 6.3325e-06 deg
node 92.21804726213362 0.00096405 deg
peri 245.3455646686472 0.00096478 deg
M 207.6905637116195 4.1704e-05 deg
tp 2459912.927736519834
(2022-Nov-29.42773652)		 0.00020025 TDB
period 1683.900823200055
4.61		 2.4124e-05
6.605e-08		 d
yr
n .2137893129096893 3.0628e-09 deg/d
Q 2.98192504592586 2.848e-08 au
   Orbit Determination Parameters
   # obs. used (total)      242  
   data-arc span      8897 days (24.36 yr)  
   first obs. used      1995-11-14  
   last obs. used      2020-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51839  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:41:48  

Additional Information
 Earth MOID = 1.54674 au 
 Jupiter MOID = 2.29513 au 
 T_jup = 3.333 
[ 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 16.49   n/a E2021B55  
diameter diameter 3.325 km 0.467 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.044   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

227957 (2007 GR69)          Discovered 2007-Apr-15 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

Alternate Designations
 2007 GR69 = 2004 RY225 = 2005 YW251 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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