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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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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer 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.


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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 
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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

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1912-Jun-15 17:33 00:01 Jupiter 1.5687425640193 1.56874193496034 1.56874319310056 0.997475168661769 n/a 2419569.231088095 1.48948532848876 324.82907965421 12.8368435510106 -84.940850967925 18205099.0297416 F 33 CATAB v2.0f-lin.ifort 2020-Feb-22 16:02:55 2020-Feb-22 16:02
1972-Sep-17 20:12 < 00:01 Jupiter 1.57012429514935 1.5701236762494 1.57012491414047 0.326525692330472 n/a 2441578.341867156 0.687429263368541 697.358982753721 15.9390735966013 -87.8273836484248 14721482.3518246 F 33 CATAB v2.0f-lin.ifort 2020-Feb-22 16:02:55 2020-Feb-22 16:02
2006-Nov-25 16:56 < 00:01 Jupiter 1.72278645116123 1.72278598223732 1.72278692009914 1.2191747973576 0.709274479333737 2454065.205648053 0.254056891416059 1032.87822363332 130.926518699306 54.3029886279672 7004013.73038576 T 33 CATAB v2.0f-lin.ifort 2020-Feb-22 16:02:55 2020-Feb-22 16:02
2033-Feb-10 04:04 < 00:01 Jupiter 1.87191642123677 1.87191580680282 1.87191703566954 1.58415892322388 1.26672037339349 2463638.669178798 0.42046292204025 153.786004806377 77.4155769920375 8.74202159860575 1023447.07856057 T 33 CATAB v2.0f-lin.ifort 2020-Feb-22 16:02:55 2020-Feb-22 16:02
2067-Mar-07 05:50 < 00:01 Jupiter 1.52573228185769 1.52573181573455 1.52573274799457 0.566821052995667 n/a 2476081.743260903 0.779355927351699 317.646845744084 16.118458560761 -86.9738489992421 14136410.165424 F 33 CATAB v2.0f-lin.ifort 2020-Feb-22 16:02:55 2020-Feb-22 16:02
2101-Apr-25 19:02 00:01 Jupiter 1.93945912677516 1.93945783102572 1.93946042252241 1.70914870157651 1.43098800613786 2488549.292822537 1.4352709508722 87.0021115689746 73.8281960892602 47.5527581319015 925222.232294267 T 33 CATAB v2.0f-lin.ifort 2020-Feb-22 16:02:55 2020-Feb-22 16:02
2127-Jun-27 17:52 00:02 Jupiter 1.6652857909761 1.66528464932545 1.66528693262827 0.501188616234068 n/a 2498108.244474758 1.89868333931229 129.186767275949 41.4732539113097 -71.4123449535133 5724871.6156453 F 33 CATAB v2.0f-lin.ifort 2020-Feb-22 16:02:55 2020-Feb-22 16:02
2161-Aug-25 21:42 00:02 Jupiter 1.59336070396709 1.59335954747397 1.59336186054592 0.743537221094435 n/a 2510586.404403130 2.24641440370169 606.940335237619 15.2342864217084 -84.7400657069821 15575955.3862243 F 33 CATAB v2.0f-lin.ifort 2020-Feb-22 16:02:55 2020-Feb-22 16:02

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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