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59420 (1999 GR2)
Classification: Main-belt Asteroid          SPK-ID: 2059420
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 .1251039425473019 3.5607e-08  
a 2.404351305653943 1.0156e-08 au
q 2.103557478047882 8.7569e-08 au
i 3.487666386261476 3.5794e-06 deg
node 60.16479278799943 6.6596e-05 deg
peri 57.23174006306446 6.8626e-05 deg
M 193.3378754577083 1.8272e-05 deg
tp 2459230.919626786492
(2021-Jan-16.41962679)
7.1211e-05 TDB
period 1361.743505109026
3.73
8.6278e-06
2.362e-08
d
yr
n .2643669667961275 1.675e-09 deg/d
Q 2.705145133260004 1.1426e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1031  
   data-arc span      8057 days (22.06 yr)  
   first obs. used      1997-10-30  
   last obs. used      2019-11-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5447  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 06:10:25  

Additional Information
 Earth MOID = 1.12254 au 
 Jupiter MOID = 2.37408 au 
 T_jup = 3.510 
[ 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 15.2   n/a MPO347917  
diameter diameter 5.670 km 0.052 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.053   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

59420 (1999 GR2)          Discovered 1999-Apr-09 by Roe, J. M. at Oaxaca
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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