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15425 Welzl (1998 SV26)
Classification: Main-belt Asteroid          SPK-ID: 2015425
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1491951203781376 2.9828e-08  
a 2.631846803559849 1.2265e-08 au
q 2.23918810288592 8.2922e-08 au
i 12.2179098816738 1.4311e-06 deg
node 264.7748129569896 4.1178e-06 deg
peri 294.2711400498304 9.0161e-06 deg
M 346.8903875127046 1.2564e-05 deg
tp 2459257.290630380062
(2021-Feb-11.79063038)
5.4607e-05 TDB
period 1559.514208115249
4.27
1.0902e-05
2.985e-08
d
yr
n .230841115859456 1.6137e-09 deg/d
Q 3.024505504233777 1.4095e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2017  
   data-arc span      25272 days (69.19 yr)  
   first obs. used      1951-12-27  
   last obs. used      2021-03-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43538  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 00:57:34  

Additional Information
 Earth MOID = 1.26567 au 
 Jupiter MOID = 2.08948 au 
 T_jup = 3.352 
[ 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 13.17   n/a E2021B10  
diameter diameter 7.215 km 0.992 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.214   0.086 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

15425 Welzl           Discovered 1998 Sept. 24 by P. Pravec at Ondřejov.
Jan Welzl (1868-1948), Czech arctic explorer, trader, hunter, inventor, craftsman and adventurer, lived in Novosibirskie Ostrova for three decades. He became internationally known through the books written about his life, such as Thirty Years in Golden North. He authored the manuscript Trip around the World 1893-1898.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20001013/MPCPages.arcLast Updated: 2013-03-29

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