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74397 (1998 XS71)
Classification: Main-belt Asteroid          SPK-ID: 2074397
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2895437564964999 4.5211e-08  
a 2.805458445403072 1.76e-08 au
q 1.993155468426236 1.2179e-07 au
i 6.798169206419638 5.4664e-06 deg
node 4.121216532767319 4.7523e-05 deg
peri 73.13112809863992 4.9098e-05 deg
M 213.7527226492612 1.174e-05 deg
tp 2459697.751530476539
(2022-Apr-28.25153048)
6.036e-05 TDB
period 1716.343411778981
4.70
1.6151e-05
4.422e-08
d
yr
n .2097482342574216 1.9738e-09 deg/d
Q 3.617761422379909 2.2696e-08 au
  Orbit Determination Parameters
   # obs. used (total)      472  
   data-arc span      9366 days (25.64 yr)  
   first obs. used      1993-10-10  
   last obs. used      2019-06-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52372  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 17:15:11  

Additional Information
 Earth MOID = 1.02081 au 
 Jupiter MOID = 1.75 au 
 T_jup = 3.250 
[ 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 15.8   n/a MPO263907  

74397 (1998 XS71)          Discovered 1998-Dec-14 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 XS71 = 1993 TO42 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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