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52904 (1998 ST74)
Classification: Main-belt Asteroid          SPK-ID: 2052904
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2449334529789529 3.3533e-08  
a 2.298912926422354 9.0017e-09 au
q 1.735832245255777 7.736e-08 au
i 3.197029424280845 3.6858e-06 deg
node 87.49807674040191 7.0211e-05 deg
peri 191.6368078097129 7.0603e-05 deg
M 207.1231048270026 8.522e-06 deg
tp 2459741.156667763078
(2022-Jun-10.65666776)
3.1621e-05 TDB
period 1273.157727166392
3.49
7.4778e-06
2.047e-08
d
yr
n .2827615088990076 1.6608e-09 deg/d
Q 2.86199360758893 1.1207e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1144  
   data-arc span      10752 days (29.44 yr)  
   first obs. used      1991-10-06  
   last obs. used      2021-03-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53298  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 06:20:26  

Additional Information
 Earth MOID = .717652 au 
 Jupiter MOID = 2.28092 au 
 T_jup = 3.550 
[ 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 15.39   n/a MPCxxxxx  

52904 (1998 ST74)          Discovered 1998-Sep-21 by Elst, E. W. at La Silla
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 ST74 = 1991 TY9 = 1994 LQ8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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