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14871 Pyramus (1990 TH7)
Classification: Outer Main-belt Asteroid          SPK-ID: 2014871
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2193314236633221 4.0359e-08  
a 3.299791641966682 1.9636e-08 au
q 2.576043643341799 1.3514e-07 au
i .9842526107314602 3.948e-06 deg
node 5.717998163622585 0.00026395 deg
peri 314.3055832872178 0.0002641 deg
M 38.20445662355401 8.4623e-06 deg
tp 2458768.151576274046
(2019-Oct-11.65157627)
5.1258e-05 TDB
period 2189.415579589053
5.99
1.9542e-05
5.35e-08
d
yr
n .1644274405261933 1.4677e-09 deg/d
Q 4.023539640591566 2.3942e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1243  
   data-arc span      23859 days (65.32 yr)  
   first obs. used      1954-07-03  
   last obs. used      2019-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55007  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 03:52:32  

Additional Information
 Earth MOID = 1.5633 au 
 Jupiter MOID = 1.30624 au 
 T_jup = 3.131 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.9   n/a MPO332957  
diameter diameter 9.180 km 0.302 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.069   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

14871 Pyramus           Discovered 1990 Oct. 13 by L. D. Schmadel and F. Börngen at Tautenburg.
In classic literature, Pyramus and Thisbe are two lovers whose union is prevented by their opposing parents and whose lives end in a tragic double suicide. The two lovers are now finally united forever in the minor-planet belt. The name was proposed by H. Raab.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030106/MPCPages.arcLast Updated: 2003-10-02

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Alternate Designations
 1990 TH7 = 1972 TJ3 = 1978 TW4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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