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39772 (1997 GL22)
Classification: Main-belt Asteroid          SPK-ID: 2039772
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 .2240065986767895 3.7628e-08  
a 3.100082908817788 2.0765e-08 au
q 2.405643880797467 1.2227e-07 au
i 3.346120774541561 5.1992e-06 deg
node 25.53155048902289 6.8902e-05 deg
peri 310.9438482546473 7.0051e-05 deg
M 356.0532547268153 1.4601e-05 deg
tp 2459022.357223180212
(2020-Jun-21.85722318)
8.0955e-05 TDB
period 1993.693486716231
5.46
2.0031e-05
5.484e-08
d
yr
n .180569381601857 1.8142e-09 deg/d
Q 3.794521936838108 2.5416e-08 au
  Orbit Determination Parameters
   # obs. used (total)      905  
   data-arc span      8146 days (22.30 yr)  
   first obs. used      1997-04-06  
   last obs. used      2019-07-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57438  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 05:35:16  

Additional Information
 Earth MOID = 1.398 au 
 Jupiter MOID = 1.60563 au 
 T_jup = 3.180 
[ 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 14.3   n/a MPO436049  
diameter diameter 7.137 km 1.791 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
geometric albedo albedo 0.066   0.046 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

39772 (1997 GL22)          Discovered 1997-Apr-06 by LINEAR at Socorro
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 GL22 = 1998 QH23 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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