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JPL Small-Body Database Browser
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1708 Polit (1929 XA)
Classification: Main-belt Asteroid          SPK-ID: 2001708
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbit Diagram
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Note: This Java-based orbit viewer will eventually be retired.

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 two-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 is not working, here are some notes that might help.
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3076555640054671 3.8976e-08  
a 2.912038588646417 8.4725e-09 au
q 2.016133714250719 1.1362e-07 au
i 6.04414500157701 3.7565e-06 deg
node 192.2028209342984 4.3323e-05 deg
peri 248.8529891357095 4.3901e-05 deg
M 51.9173090686381 7.2223e-06 deg
tp 2458738.739694375103
3.627e-05 TDB
period 1815.073079006846
n .1983391215283637 8.656e-10 deg/d
Q 3.807943463042115 1.1079e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2523  
   data-arc span      33024 days (90.41 yr)  
   first obs. used      1929-11-28  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43542  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:28:42  

Additional Information
 Earth MOID = 1.04105 au 
 Jupiter MOID = 1.52807 au 
 T_jup = 3.203 
[ 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 11.8   n/a MPO502169  
diameter diameter 28.706 km 0.057 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 7.520 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Behrend, R. (2005) Observatoire de Geneve web site,]
[Clark, M. (2011) Minor Planet Bull. 38, 187-189.]
[Clark, M. (2015) Minor Planet Bull. 42, 163-166.]
[Clark, M. (2016) Minor Planet Bull. 43, 80-86.]
geometric albedo albedo 0.042   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

1708 Polit           Discovered 1929 Nov. 30 by J. Comas Sola at Barcelona.
Named in memory of Isidre Polit (1880-1958), second director of the astronomical section of the Fabra Observatory and an assiduous observer of minor planets and comets.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC 5357Last Updated: 2006-03-21

[ show close-approach data ]
Alternate Designations
 1929 XA = 1934 XF = 1939 YB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2020-May-27 23:23 UT
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