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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3076555625382039 3.9421e-08  
a 2.912038589181475 8.8794e-09 au
q 2.016133718893891 1.1519e-07 au
i 6.044144624474689 3.8287e-06 deg
node 192.2028142394509 4.496e-05 deg
peri 248.8529956449082 4.5507e-05 deg
M 51.91730896448002 7.3086e-06 deg
tp 2458738.739694828110
(2019-Sep-12.23969483)
3.6655e-05 TDB
period 1815.073079507098
4.97
8.3018e-06
2.273e-08
d
yr
n .1983391214736994 9.0716e-10 deg/d
Q 3.80794345946906 1.1611e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2308  
   data-arc span      32940 days (90.18 yr)  
   first obs. used      1929-11-28  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44955  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 16:02:40  

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] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
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, 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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