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128562 Murdin (2004 PM90)
Classification: Main-belt Asteroid          SPK-ID: 2128562
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1200370645516934 9.5947e-08  
a 2.774306972053665 3.3404e-08 AU
q 2.441287306963047 2.6702e-07 AU
i 7.999992877311204 8.6777e-06 deg
node 240.9022136090991 5.5874e-05 deg
peri 33.78676215952006 6.6216e-05 deg
M 125.6380512447491 3.2776e-05 deg
tp 2456411.454438986017
(2013-Apr-28.95443899)
0.00015344 JED
period 1687.835809805244
4.62
3.0483e-05
8.346e-08
d
yr
n .2132908887870673 3.8522e-09 deg/d
Q 3.107326637144284 3.7414e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      212  
   data-arc span      5138 days (14.07 yr)  
   first obs. used      2000-11-03  
   last obs. used      2014-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55613  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 07:28:17  

Additional Information
 Earth MOID = 1.4313 AU 
 T_jup = 3.311 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.8 mag n/a MPO320435  

128562 Murdin           Discovered 2004 Aug. 10 by the Lowell Observatory Near-Earth Object Search at the Anderson Mesa Station.
Paul Geoffrey Murdin (b. 1942) held senior positions at the Royal Greenwich Observatory and other major institutions, and was a vice president and treasurer of the International Astronomical Union. He is a prolific lecturer, broadcaster and writer on astronomy.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20120703/MPCPages.arcLast Updated: 2012-07-09

[ show close-approach data ]
Alternate Designations
 2004 PM90 = 2000 VZ64 = 2003 HD23 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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