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47429 (1999 XN172)
Classification: Main-belt Asteroid          SPK-ID: 2047429
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2282018172899589 3.9417e-08  
a 3.10522605853237 1.9162e-08 au
q 2.396607828879147 1.2387e-07 au
i 7.401460492511486 4.718e-06 deg
node 62.91525336709176 3.3674e-05 deg
peri 96.80446350964233 3.5061e-05 deg
M 223.9121788367995 1.0701e-05 deg
tp 2459756.035751998439
(2022-Jun-25.53575200)
6.3139e-05 TDB
period 1998.656958386129
5.47
1.85e-05
5.065e-08
d
yr
n .1801209549690268 1.6672e-09 deg/d
Q 3.813844288185593 2.3534e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1217  
   data-arc span      8069 days (22.09 yr)  
   first obs. used      1998-09-21  
   last obs. used      2020-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53127  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:42:18  

Additional Information
 Earth MOID = 1.41917 au 
 Jupiter MOID = 1.25687 au 
 T_jup = 3.167 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457289.5 (2015-Sep-24.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2273042066542806 3.9886e-08  
q 2.400876951409618 1.2559e-07 au
tp 2457759.290343824086
(2017-Jan-05.79034382)
5.4675e-05 TDB
node 62.94085238914636 3.3696e-05 deg
peri 97.22403448140608 3.5063e-05 deg
i 7.397910503003016 4.7161e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1217  
   data-arc span      8069 days (22.09 yr)  
   first obs. used      1998-09-21  
   last obs. used      2020-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53127  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:42:18  

Additional Information
 Jupiter MOID = 1.25687 au 
 T_jup = 3.167 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.590912158563735E-15 -4.974017735824461E-15 7.004102504375311E-13 -1.439206029987708E-15 1.716284948909464E-13 -9.06443266301485E-16
q -4.974017735824461E-15 1.577233128373565E-14 -1.933781338398375E-12 4.219574667697173E-15 -5.041219097557279E-13 3.353036557984292E-15
tp 7.004102504375311E-13 -1.933781338398375E-12 2.989309841313227E-9 1.808615311313423E-12 5.518498828358888E-10 -4.859627661472493E-13
node -1.439206029987708E-15 4.219574667697173E-15 1.808615311313423E-12 1.135452080792667E-9 -1.125544408459895E-9 -5.970118480973453E-11
peri 1.716284948909464E-13 -5.041219097557279E-13 5.518498828358888E-10 -1.125544408459895E-9 1.229417791732977E-9 5.907948582226151E-11
i -9.06443266301485E-16 3.353036557984292E-15 -4.859627661472493E-13 -5.970118480973453E-11 5.907948582226151E-11 2.224159091220137E-11

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 13.9   n/a MPO417145  
diameter diameter 6.193 km 0.362 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.152   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

47429 (1999 XN172)          Discovered 1999-Dec-10 by LINEAR at Socorro
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 XN172 = 2001 HT28 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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