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79395 (1997 GP21)
Classification: Main-belt Asteroid          SPK-ID: 2079395
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09340272324435869 4.3496e-08  
a 2.293747197560353 9.9942e-09 au
q 2.0795049628741 9.8115e-08 au
i 9.869643089795119 4.6177e-06 deg
node 218.9119498409948 2.5251e-05 deg
peri 327.8794609672407 3.4131e-05 deg
M 260.2116250309873 2.5243e-05 deg
tp 2459352.217682492153
(2021-May-17.71768249)
8.9926e-05 TDB
period 1268.868901177054
3.47
8.293e-06
2.27e-08
d
yr
n .2837172537415406 1.8543e-09 deg/d
Q 2.507989432246606 1.0928e-08 au
  Orbit Determination Parameters
   # obs. used (total)      622  
   data-arc span      8741 days (23.93 yr)  
   first obs. used      1995-11-23  
   last obs. used      2019-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58654  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 09:22:39  

Additional Information
 Earth MOID = 1.08493 au 
 Jupiter MOID = 2.47033 au 
 T_jup = 3.571 
[ 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 15.9   n/a MPO449498  
diameter diameter 2.036 km 0.291 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.186   0.041 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

79395 (1997 GP21)          Discovered 1997-Apr-06 by LINEAR at Socorro
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

[ show close-approach data ]
Alternate Designations
 1997 GP21 = 2001 OQ 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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