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27937 (1997 JJ13)
Classification: Main-belt Asteroid          SPK-ID: 2027937
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2157630189627089 3.3623e-08  
a 2.292518502886099 8.7925e-09 au
q 1.797877789675525 7.6601e-08 au
i 3.3698502368543 3.9883e-06 deg
node 80.95543013216106 7.151e-05 deg
peri 207.3842824332157 7.234e-05 deg
M 190.6019431059184 1.3371e-05 deg
tp 2459597.086779129227
(2022-Jan-17.58677913)
4.9143e-05 TDB
period 1267.849492635032
3.47
7.2938e-06
1.997e-08
d
yr
n .2839453752919796 1.6335e-09 deg/d
Q 2.787159216096674 1.069e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1165  
   data-arc span      11816 days (32.35 yr)  
   first obs. used      1987-09-22  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55411  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 01:13:25  

Additional Information
 Earth MOID = .782344 au 
 Jupiter MOID = 2.38776 au 
 T_jup = 3.564 
[ 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 15.0   n/a MPO347730  
diameter diameter 2.756 km 0.265 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.404   0.115 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

27937 (1997 JJ13)          Discovered 1997-May-03 by Elst, E. W. at La Silla
Reference: 20010902/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 JJ13 = 1987 SN13 = 2000 EV83 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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