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18240 Mould (1317 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2018240
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

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Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB
Reference: MPO244349 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 0.1271511 n/a  
a 2.4698413 n/a AU
q 2.1557983 n/a AU
i 6.56519 n/a deg
node 15.57640 n/a deg
peri 263.26275 n/a deg
M 144.70056 n/a deg
tp 2455830.6379608
(2011-Sep-26.13796080)
n/a JED
period 1417.7577067
3.88
n/a
n/a
d
yr
n 0.25392209 n/a deg/d
Q 2.7838843 n/a AU
  Orbit Determination Parameters
   # obs. used (total)      335  
   first obs. used      1973-??-??  
   last obs. used      2012-11-13  
   # oppositions      14  
   planetary ephem.      DE403  
   condition code      0  
   fit RMS      0.63  
   data source      MPC:mpn  
   producer      MPCLINUX  

Additional Information
 T_jup = 3.465 

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.0 mag n/a PDS3 (MPO 4285)  

18240 Mould           Discovered 1973 Sept. 29 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Jeremy Mould (b. 1949), who has been director of Mount Stromlo Observatory and of the U.S. National Optical Astronomy Observatories, is well known for his determination of the expansion rate of the Universe.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040107/MPCPages.arcLast Updated: 2004-01-07

Alternate Designations
 1317 T-2 = 3731 T-3 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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