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74402 (1998 YP4)
Classification: Main-belt Asteroid          SPK-ID: 2074402
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1404657450351311 4.1823e-08  
a 2.697059879219711 1.868e-08 au
q 2.318215353880754 1.1659e-07 au
i 21.58592570937616 5.848e-06 deg
node 170.7766340227299 1.2739e-05 deg
peri 274.3203111678937 2.5782e-05 deg
M 299.2329861468711 2.4926e-05 deg
tp 2459273.586168559112
(2021-Feb-28.08616856)
0.00011353 TDB
period 1617.835309776677
4.43
1.6807e-05
4.602e-08
d
yr
n .2225195592063655 2.3117e-09 deg/d
Q 3.075904404558668 2.1303e-08 au
  Orbit Determination Parameters
   # obs. used (total)      685  
   data-arc span      7565 days (20.71 yr)  
   first obs. used      1998-12-19  
   last obs. used      2019-09-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57043  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 02:43:41  

Additional Information
 Earth MOID = 1.44683 au 
 Jupiter MOID = 2.26538 au 
 T_jup = 3.255 
[ 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 14.9   n/a MPO412634  

74402 (1998 YP4)          Discovered 1998-Dec-19 by CSS at Catalina
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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