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59422 (1999 GD4)
Classification: Main-belt Asteroid          SPK-ID: 2059422
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1075650748577956 3.393e-08  
a 2.443913023200863 9.9624e-09 au
q 2.18103333591432 8.1212e-08 au
i 13.83081806936205 4.6107e-06 deg
node 228.521982662033 1.7872e-05 deg
peri 34.20295694291691 3.1279e-05 deg
M 155.5661971400203 2.5694e-05 deg
tp 2458397.468803495778
(2018-Oct-05.96880350)
9.9296e-05 TDB
period 1395.491017538488
3.82
8.5329e-06
2.336e-08
d
yr
n .2579737135356167 1.5774e-09 deg/d
Q 2.706792710487405 1.1034e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1464  
   data-arc span      7602 days (20.81 yr)  
   first obs. used      1999-04-12  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4852  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 12:47:25  

Additional Information
 Earth MOID = 1.17901 au 
 Jupiter MOID = 2.34284 au 
 T_jup = 3.452 
[ 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 14.4   n/a MPO449382  
diameter diameter 4.030 km 0.121 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.227   0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

59422 (1999 GD4)          Discovered 1999-Apr-12 by Zoltowski, F. B. at Woomera
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 GD4 = 2000 RK43 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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