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32815 (1991 GK1)
Classification: Main-belt Asteroid          SPK-ID: 2032815
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1274669646319296 3.8416e-08  
a 2.430463988493768 9.5286e-09 au
q 2.120660121233254 9.5848e-08 au
i 3.348650803982648 3.9188e-06 deg
node 47.10663721442031 7.5972e-05 deg
peri 75.31965090424846 7.7722e-05 deg
M 208.0286240481886 1.7517e-05 deg
tp 2459184.740295989646
(2020-Dec-01.24029599)
6.8735e-05 TDB
period 1383.987643982147
3.79
8.1388e-06
2.228e-08
d
yr
n .2601179292064864 1.5297e-09 deg/d
Q 2.740267855754281 1.0743e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1405  
   data-arc span      10427 days (28.55 yr)  
   first obs. used      1991-04-11  
   last obs. used      2019-10-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51931  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 05:28:06  

Additional Information
 Earth MOID = 1.13971 au 
 Jupiter MOID = 2.32482 au 
 T_jup = 3.494 
[ 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 14.4   n/a MPO452631  
diameter diameter 6.983 km 0.042 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.061   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

32815 (1991 GK1)          Discovered 1991-Apr-14 by Endate, K., Watanabe, K. at Kitami
Reference: 20020128/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1991 GK1 = 1999 LL23 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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