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

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.

Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1630545339379791 1.2949e-08  
a 2.643290369960614 8.7468e-09 au
q 2.212289890623937 3.3505e-08 au
i 12.75090375132827 5.3562e-07 deg
node 332.3432645006491 4.5829e-06 deg
peri 337.3498915577892 9.8132e-06 deg
M 43.50291109288722 6.6458e-06 deg
tp 2459010.815625661295
2.8852e-05 TDB
period 1569.696671933729
n .2293436728489151 1.1384e-09 deg/d
Q 3.074290849297289 1.0173e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2248  
   data-arc span      22052 days (60.38 yr)  
   first obs. used      1960-09-24  
   last obs. used      2021-02-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41659  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 23:10:21  

Additional Information
 Earth MOID = 1.20195 au 
 Jupiter MOID = 2.24978 au 
 T_jup = 3.340 
[ 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 13.39   n/a E2021B10  
diameter diameter 5.646 km 0.179 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 6.976 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.350   0.048 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

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 | Mission Design | Physical Parameters | Discovery Circumstances ]
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