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12627 Maryedwards (1230 T-1)
Classification: Main-belt Asteroid          SPK-ID: 2012627
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

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Orbit Diagram
Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet was implemented using 2-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet has stopped working because of a recent Java upgrade, here is a possible workaround.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).

Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1401468195244817 5.483e-08  
a 2.244210290600575 1.386e-08 au
q 1.929691356028791 1.2452e-07 au
i 2.200528860335169 6.3441e-06 deg
node 328.8053898703718 0.00015653 deg
peri 302.4371484621494 0.00015841 deg
M 105.8455745491194 2.4692e-05 deg
tp 2457239.452821887847
8.4599e-05 JED
period 1227.986948666021
n .293162724889766 2.7159e-09 deg/d
Q 2.558729225172359 1.5803e-08 au
  Orbit Determination Parameters
   # obs. used (total)      604  
   data-arc span      16208 days (44.38 yr)  
   first obs. used      1971-03-24  
   last obs. used      2015-08-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55088  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 14:36:28  

Additional Information
 Earth MOID = .914394 au 
 Jupiter MOID = 2.52754 au 
 T_jup = 3.618 
[ 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 15.6 mag n/a MPO250337  

12627 Maryedwards           Discovered 1971 Mar. 25 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Mary Edwards (c. 1750-1815), of Ludlow, Shropshire, was a skillful mathematical and astronomical computer. From 1773 until her death she performed most of the astronomical computations necessary for the preparation of the Nautical Almanac. The name was suggested by R. H. van Gent.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20090409/MPCPages.arcLast Updated: 2009-04-10

Alternate Designations
 1230 T-1 = 1984 BF3 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
FirstGov 2016-May-05 06:42 UT
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