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12136 Martinryle (3045 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2012136
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1627911004413245 8.4587e-08  
a 2.643956819454359 2.2058e-08 au
q 2.21354417929604 2.305e-07 au
i 12.74542377247582 9.0751e-06 deg
node 332.3989866777915 3.017e-05 deg
peri 337.7912446765662 3.8322e-05 deg
M 350.3379966388734 2.7509e-05 deg
tp 2457442.644863098265
(2016-Feb-24.14486310)
0.00012024 JED
period 1570.290357838001
4.30
1.9651e-05
5.38e-08
d
yr
n .2292569639768109 2.869e-09 deg/d
Q 3.074369459612678 2.5649e-08 au
  Orbit Determination Parameters
   # obs. used (total)      859  
   data-arc span      20041 days (54.87 yr)  
   first obs. used      1960-09-24  
   last obs. used      2015-08-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .4804  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 14:34:57  

Additional Information
 Earth MOID = 1.20308 au 
 Jupiter MOID = 2.23897 au 
 T_jup = 3.340 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.2 mag n/a MPO279644  
rotation period rot_per 6.9761 h n/a LCDB (Rev. 2015-December); 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

12136 Martinryle           Discovered 1960 Sept. 24 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Martin Ryle (1918-1984) was a British astrophysicist who developed the aperture synthesis technique of interferometry and constructed large radio telescopes, using them to discover and catalogue numerous radio sources.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20071124/MPCPages.arcLast Updated: 2007-11-26

Alternate Designations
 3045 P-L = 1990 RM2 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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