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39775 (1997 GB30)
Classification: Main-belt Asteroid          SPK-ID: 2039775
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1156969541895193 4.6443e-08  
a 2.762705661488672 1.9123e-08 au
q 2.443069031132291 1.2955e-07 au
i 9.122130751142981 4.8373e-06 deg
node 77.80789781938302 3.2158e-05 deg
peri 159.3355830095446 4.0388e-05 deg
M 256.2343365272907 2.7923e-05 deg
tp 2459083.949950259325
(2020-Aug-22.44995026)
0.00013247 TDB
period 1677.259859077858
4.59
1.7414e-05
4.768e-08
d
yr
n .2146357930475512 2.2285e-09 deg/d
Q 3.082342291845052 2.1335e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1065  
   data-arc span      8246 days (22.58 yr)  
   first obs. used      1997-04-13  
   last obs. used      2019-11-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57962  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 02:32:56  

Additional Information
 Earth MOID = 1.43285 au 
 Jupiter MOID = 1.93447 au 
 T_jup = 3.313 
[ 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 14.2   n/a MPO436049  
diameter diameter 4.532 km 0.473 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.180   0.060 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

39775 (1997 GB30)          Discovered 1997-Apr-13 by BAO Schmidt CCD Asteroid Program at Xinglong
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 GB30 = 1999 VJ194 = 1999 WW1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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