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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2157529543765288 3.3706e-08  
a 2.292181038621092 8.9006e-09 au
q 1.797636207572731 7.6879e-08 au
i 3.370105329770547 4.0024e-06 deg
node 80.95561723285365 7.6303e-05 deg
peri 207.3175005285563 7.7138e-05 deg
M 77.1052704783239 1.3094e-05 deg
tp 2458329.010295678106
(2018-Jul-29.51029568)
4.5323e-05 TDB
period 1267.569557172592
3.47
7.383e-06
2.021e-08
d
yr
n .2840080829986219 1.6542e-09 deg/d
Q 2.786725869669453 1.0821e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1106  
   data-arc span      11371 days (31.13 yr)  
   first obs. used      1987-09-22  
   last obs. used      2018-11-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56565  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 01:06:20  

Additional Information
 Earth MOID = .781461 au 
 Jupiter MOID = 2.38649 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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