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JPL Small-Body Database Browser
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1347 Patria (1931 VW)
Classification: Main-belt Asteroid          SPK-ID: 2001347
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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06853589387732116 3.7e-08  
a 2.571022747941084 9.1223e-09 au
q 2.394815405732015 9.5061e-08 au
i 11.868672436 4.4671e-06 deg
node 229.2016877005763 1.9556e-05 deg
peri 201.3997978124544 3.7599e-05 deg
M 56.47965684030346 3.2688e-05 deg
tp 2458364.263579065856
(2018-Sep-02.76357907)
0.00013642 TDB
period 1505.765372774086
4.12
8.014e-06
2.194e-08
d
yr
n .2390810723298601 1.2724e-09 deg/d
Q 2.747230090150153 9.7475e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2401  
   data-arc span      44016 days (120.51 yr)  
   first obs. used      1898-11-06  
   last obs. used      2019-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42975  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-29 19:22:03  

Additional Information
 Earth MOID = 1.41106 au 
 Jupiter MOID = 2.53744 au 
 T_jup = 3.396 
[ 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 11.3   n/a MPO337255  
diameter diameter 32.40 km 1.1 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 16
rotation period rot_per 29.5 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.0386   0.003 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 16

1347 Patria (1931 VW)          Discovered 1931-Nov-06 by Neujmin, G. at Simeis
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1931 VW = 1968 UK1 = 1970 EY2 = A898 VB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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