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19155 Lifeson (1990 SX3)
Classification: Main-belt Asteroid          SPK-ID: 2019155
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2152235525686985 1.321e-08  
a 2.587459989391406 8.908e-09 au
q 2.03057765834522 3.4282e-08 au
i 12.29354054106381 4.8463e-07 deg
node 307.7437778425181 4.0319e-06 deg
peri 61.53425336255076 8.082e-06 deg
M 96.5727458150032 4.2453e-06 deg
tp 2458792.687089829173
(2019-Nov-05.18708983)
1.7108e-05 TDB
period 1520.228574040289
4.16
7.8507e-06
2.149e-08
d
yr
n .2368064948570421 1.2229e-09 deg/d
Q 3.144342320437591 1.0825e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2204  
   data-arc span      24604 days (67.36 yr)  
   first obs. used      1953-11-11  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4351  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 02:51:50  

Additional Information
 Earth MOID = 1.05855 au 
 Jupiter MOID = 2.43651 au 
 T_jup = 3.357 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.45   n/a MPCxxxxx  
diameter diameter 5.913 km 0.420 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.079 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Benishek, V. (2020) Minor Planet Bull. 47, 75-83.]
geometric albedo albedo 0.291   0.074 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19155 Lifeson           Discovered 1990 Sept. 22 by B. Roman at Palomar.
Alex Lifeson (Alexander Zivojinovich, b. 1953) is the guitarist for the Canadian band Rush. Cofounder of the band, he is an integral part of the Rush sound. Along with his band mates, Alex is an Officer of the Order of Canada.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070730/MPCPages.arcLast Updated: 2007-08-07

Alternate Designations
 1990 SX3 = 1969 PG = 1998 QK7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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