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JPL Small-Body Database Browser
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49978 (1999 YT5)
Classification: Main-belt Asteroid          SPK-ID: 2049978
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2226615889127303 6.2494e-08  
a 2.337372324355751 1.4071e-08 au
q 1.816929288734058 1.4506e-07 au
i 25.77871936646002 6.7117e-06 deg
node 12.95202353190583 1.1121e-05 deg
peri 344.4822272615183 1.9224e-05 deg
M 230.4092374463057 2.3799e-05 deg
tp 2459070.352798287458
(2020-Aug-08.85279829)
8.9779e-05 TDB
period 1305.239694946628
3.57
1.1786e-05
3.227e-08
d
yr
n .2758114095010883 2.4906e-09 deg/d
Q 2.857815359977444 1.7204e-08 au
  Orbit Determination Parameters
   # obs. used (total)      952  
   data-arc span      8600 days (23.55 yr)  
   first obs. used      1995-10-23  
   last obs. used      2019-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57081  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:41:49  

Additional Information
 Earth MOID = .821779 au 
 Jupiter MOID = 2.61034 au 
 T_jup = 3.403 
[ 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 14.3   n/a MPO337658  

49978 (1999 YT5)          Discovered 1999-Dec-28 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 YT5 = 1995 UO49 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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