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74109 (1998 QT37)
Classification: Main-belt Asteroid          SPK-ID: 2074109
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .327366863094159 3.9643e-08  
a 2.66513425389649 1.4883e-08 au
q 1.792657613473604 1.0715e-07 au
i 8.901782031026887 4.864e-06 deg
node 163.8559258909499 3.3023e-05 deg
peri 211.8824434930364 3.4294e-05 deg
M 343.0454869824504 1.3117e-05 deg
tp 2459075.344498532790
(2020-Aug-13.84449853)
5.8405e-05 TDB
period 1589.194537402214
4.35
1.3312e-05
3.645e-08
d
yr
n .2265298498876519 1.8975e-09 deg/d
Q 3.537610894319376 1.9755e-08 au
  Orbit Determination Parameters
   # obs. used (total)      533  
   data-arc span      8539 days (23.38 yr)  
   first obs. used      1996-03-11  
   last obs. used      2019-07-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59512  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 17:11:12  

Additional Information
 Earth MOID = .799993 au 
 Jupiter MOID = 1.94123 au 
 T_jup = 3.289 
[ 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 15.2   n/a MPO436301  

74109 (1998 QT37)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 QT37 = 1996 EC4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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