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91354 (1999 JY55)
Classification: Main-belt Asteroid          SPK-ID: 2091354
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1371075719178077 6.1805e-08  
a 2.600128850782418 1.4784e-08 au
q 2.243631497378201 1.5802e-07 au
i 7.425807639375328 6.8041e-06 deg
node 226.396335475617 3.7411e-05 deg
peri 356.0028746986828 4.1607e-05 deg
M 15.37969499399788 1.7234e-05 deg
tp 2458935.076171593935
(2020-Mar-26.57617159)
7.3353e-05 TDB
period 1531.407367660734
4.19
1.3061e-05
3.576e-08
d
yr
n .2350778816938238 2.005e-09 deg/d
Q 2.956626204186635 1.6811e-08 au
  Orbit Determination Parameters
   # obs. used (total)      509  
   data-arc span      7708 days (21.10 yr)  
   first obs. used      1999-05-10  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63733  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 00:39:14  

Additional Information
 Earth MOID = 1.23504 au 
 Jupiter MOID = 2.02627 au 
 T_jup = 3.390 
[ 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 15.8   n/a MPO468899  

91354 (1999 JY55)          Discovered 1999-May-10 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

Alternate Designations
 1999 JY55 = 2003 FM102 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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