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74392 (1998 XN55)
Classification: Main-belt Asteroid          SPK-ID: 2074392
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1446593409159195 4.6801e-08  
a 2.735364651055225 1.7064e-08 au
q 2.339668603468872 1.2938e-07 au
i 7.988670892325131 5.2472e-06 deg
node 245.8825568300834 3.5129e-05 deg
peri 181.1681155170048 3.9411e-05 deg
M 277.5166846890821 1.7628e-05 deg
tp 2459379.103722778937
(2021-Jun-13.60372278)
8.2001e-05 TDB
period 1652.423155963718
4.52
1.5462e-05
4.233e-08
d
yr
n .2178618707325259 2.0386e-09 deg/d
Q 3.131060698641579 1.9532e-08 au
  Orbit Determination Parameters
   # obs. used (total)      731  
   data-arc span      7841 days (21.47 yr)  
   first obs. used      1998-12-15  
   last obs. used      2020-06-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5399  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 23:49:38  

Additional Information
 Earth MOID = 1.35355 au 
 Jupiter MOID = 2.17081 au 
 T_jup = 3.323 
[ 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 14.7   n/a MPO436303  

74392 (1998 XN55)          Discovered 1998-Dec-15 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 XN55 = 2002 RD67 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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