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129567 (1997 GR9)
Classification: Main-belt Asteroid          SPK-ID: 2129567
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1205007604097962 5.3384e-08  
a 2.697438149869661 1.975e-08 au
q 2.372394801651973 1.4189e-07 au
i 7.837452050023522 6.0883e-06 deg
node 2.754225826083932 3.7627e-05 deg
peri 208.6857293486087 4.3694e-05 deg
M 70.31838902785553 2.1219e-05 deg
tp 2458684.423591519619
(2019-Jul-19.92359152)
9.5234e-05 TDB
period 1618.175681013711
4.43
1.7772e-05
4.866e-08
d
yr
n .2224727538696397 2.4433e-09 deg/d
Q 3.022481498087349 2.213e-08 au
  Orbit Determination Parameters
   # obs. used (total)      437  
   data-arc span      8541 days (23.38 yr)  
   first obs. used      1997-03-11  
   last obs. used      2020-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57721  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 10:41:13  

Additional Information
 Earth MOID = 1.37087 au 
 Jupiter MOID = 1.95725 au 
 T_jup = 3.345 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.7   n/a MPO436628  
diameter diameter 4.977 km 0.058 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.045   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

129567 (1997 GR9)          Discovered 1997-Apr-03 by LINEAR at Socorro
Reference: 20060711/Numbers.arcLast Updated: 2006-07-17

[ show close-approach data ]
Alternate Designations
 1997 GR9 = 2001 BO16 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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