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90397 Rasch (2003 YW4)
Classification: Main-belt Asteroid          SPK-ID: 2090397
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2669883543890639 5.2884e-08  
a 2.531436221142797 1.0401e-08 au
q 1.855572230219011 1.3447e-07 au
i 6.306622533865889 5.0496e-06 deg
node 194.3742298687638 3.2671e-05 deg
peri 169.7454096381395 3.3868e-05 deg
M 171.6273557859839 9.0618e-06 deg
tp 2458695.153034177103
(2019-Jul-30.65303418)
3.6807e-05 TDB
period 1471.122750449451
4.03
9.0666e-06
2.482e-08
d
yr
n .2447110547981224 1.5082e-09 deg/d
Q 3.207300212066583 1.3178e-08 au
  Orbit Determination Parameters
   # obs. used (total)      936  
   data-arc span      8338 days (22.83 yr)  
   first obs. used      1998-06-19  
   last obs. used      2021-04-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49751  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:38:01  

Additional Information
 Earth MOID = .853309 au 
 Jupiter MOID = 2.26101 au 
 T_jup = 3.392 
[ 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 16.06   n/a MPCxxxxx  

90397 Rasch           Discovered 2003 Dec. 16 by the Catalina Sky Survey.
Charlie Rasch (1937-2011) was a well-known Jazz/Ragtime pianist in the Detroit area of Michigan. He was featured in about a dozen albums in the last 50 years.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20110615/MPCPages.arcLast Updated: 2013-03-28

Alternate Designations
 2003 YW4 = 1998 MW4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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