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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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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3076489501544782 4.0123e-08  
a 2.912219947192825 9.8425e-09 au
q 2.016278537820023 1.1786e-07 au
i 6.044081197951663 4.1111e-06 deg
node 192.2110413831964 4.5516e-05 deg
peri 248.8914087967597 4.6037e-05 deg
M 332.5607320057644 7.5755e-06 deg
tp 2458738.858137081743
(2019-Sep-12.35813708)
3.8369e-05 TDB
period 1815.242642766246
4.97
9.2026e-06
2.52e-08
d
yr
n .1983205944585989 1.0054e-09 deg/d
Q 3.808161356565627 1.2871e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2173  
   data-arc span      32881 days (90.02 yr)  
   first obs. used      1929-11-28  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46056  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 21:04:44  

Additional Information
 Earth MOID = 1.0411 au 
 Jupiter MOID = 1.52759 au 
 T_jup = 3.202 
[ 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] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 7.520 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[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] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

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 ]
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