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3144 Brosche (1931 TY1)
Classification: Main-belt Asteroid          SPK-ID: 2003144
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2090966736098392 6.1412e-08  
a 2.226013766901199 8.3329e-09 au
q 1.76056169283245 1.3562e-07 au
i 5.508634123966325 4.8187e-06 deg
node 248.7284451942222 6.0455e-05 deg
peri 95.79451592434711 6.1352e-05 deg
M 217.3476988477746 1.3194e-05 deg
tp 2458081.191537742798
4.6024e-05 JED
period 1213.082103756219
n .2967647440229203 1.6664e-09 deg/d
Q 2.691465840969947 1.0075e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1331  
   data-arc span      30854 days (84.47 yr)  
   first obs. used      1931-10-19  
   last obs. used      2016-04-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49442  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 12:42:36  

Additional Information
 Earth MOID = .762949 au 
 Jupiter MOID = 2.73694 au 
 T_jup = 3.611 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.9 mag n/a MPO313444  
rotation period rot_per 3.300 h n/a LCDB (Rev. 2016-February); Warner et al., 2009 Published Reference List:
[Behrend, R. (2004) Observatoire de Geneve web site,]
[Stephens, R.D. (2005) Minor Planet Bul. 32, 27-28.]

3144 Brosche (1931 TY1)          Discovered 1931-Oct-10 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1931 TY1 = 1981 XG1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2016-Apr-29 12:06 UT
(server date/time)  
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