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JPL Small-Body Database Browser
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47428 (1999 XK172)
Classification: Main-belt Asteroid          SPK-ID: 2047428
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1937912015342405 5.0974e-08  
a 2.298762312851549 7.8316e-09 au
q 1.853282402202417 1.1783e-07 au
i 3.595654583314514 5.3695e-06 deg
node 352.3277884439008 5.6888e-05 deg
peri 32.66763273382367 5.8141e-05 deg
M 254.2804170984631 1.0434e-05 deg
tp 2458974.345768950521
(2020-May-04.84576895)
3.7426e-05 TDB
period 1273.032612581665
3.49
6.5056e-06
1.781e-08
d
yr
n .2827892989087945 1.4452e-09 deg/d
Q 2.74424222350068 9.3493e-09 au
  Orbit Determination Parameters
   # obs. used (total)      905  
   data-arc span      8243 days (22.57 yr)  
   first obs. used      1995-09-26  
   last obs. used      2018-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53924  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-07 04:14:39  

Additional Information
 Earth MOID = .857425 au 
 Jupiter MOID = 2.71509 au 
 T_jup = 3.565 
[ 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 15.5   n/a MPO449302  

47428 (1999 XK172)          Discovered 1999-Dec-10 by LINEAR at Socorro
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 XK172 = 1995 SY45 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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