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74399 (1998 XR73)
Classification: Main-belt Asteroid          SPK-ID: 2074399
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1608778926234007 4.1228e-08  
a 2.764820639718704 1.4686e-08 au
q 2.320022121719076 1.1408e-07 au
i 10.34099579603344 4.1442e-06 deg
node 96.79596448026703 2.5068e-05 deg
peri 305.85317156 2.7732e-05 deg
M 282.4786564315413 1.3872e-05 deg
tp 2459362.091040951326
(2021-May-27.59104095)
6.6126e-05 TDB
period 1679.186256976085
4.60
1.3379e-05
3.663e-08
d
yr
n .2143895583377962 1.7082e-09 deg/d
Q 3.209619157718331 1.7049e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1116  
   data-arc span      7900 days (21.63 yr)  
   first obs. used      1998-12-14  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53958  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 07:12:27  

Additional Information
 Earth MOID = 1.34712 au 
 Jupiter MOID = 2.208 au 
 T_jup = 3.298 
[ 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 14.0   n/a MPO436303  

74399 (1998 XR73)          Discovered 1998-Dec-14 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 XR73 = 1999 BX16 = 2000 FA47 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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