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JPL Small-Body Database Browser
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91364 (1999 JY78)
Classification: Main-belt Asteroid          SPK-ID: 2091364
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03595194547652512 4.0884e-08  
a 2.402425159172931 1.0515e-08 au
q 2.316053300838913 9.7244e-08 au
i 8.451712795661782 4.4666e-06 deg
node 73.19352859783889 2.4482e-05 deg
peri 167.4981140268734 5.7062e-05 deg
M 223.9673848671343 5.3017e-05 deg
tp 2459514.441602378474
(2021-Oct-26.94160238)
0.00020139 TDB
period 1360.107476251478
3.72
8.9294e-06
2.445e-08
d
yr
n .2646849651853818 1.7377e-09 deg/d
Q 2.488797017506948 1.0893e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1233  
   data-arc span      7542 days (20.65 yr)  
   first obs. used      1999-04-14  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49415  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 08:16:43  

Additional Information
 Earth MOID = 1.30318 au 
 Jupiter MOID = 2.50395 au 
 T_jup = 3.509 
[ 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 14.8   n/a MPO449561  
diameter diameter 2.430 km 0.270 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.290   0.087 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91364 (1999 JY78)          Discovered 1999-May-13 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

Alternate Designations
 1999 JY78 = 2000 TS19 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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