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1499 Pori (1938 UF)
Classification: Main-belt Asteroid          SPK-ID: 2001499
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1870598429401313 4.0657e-08  
a 2.669607074309574 9.8366e-09 au
q 2.170230794277362 1.1021e-07 au
i 12.1805664740569 3.9444e-06 deg
node 239.6166494783386 2.2402e-05 deg
peri 74.81958431880308 2.4948e-05 deg
M 306.7459976327677 1.3958e-05 deg
tp 2459236.178082532083
(2021-Jan-21.67808253)
6.2496e-05 TDB
period 1593.196866715793
4.36
8.8056e-06
2.411e-08
d
yr
n .2259607757967174 1.2489e-09 deg/d
Q 3.168983354341786 1.1677e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2102  
   data-arc span      28032 days (76.75 yr)  
   first obs. used      1942-08-11  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42398  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-29 19:23:37  

Additional Information
 Earth MOID = 1.19406 au 
 Jupiter MOID = 2.19494 au 
 T_jup = 3.325 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.4   n/a MPO384761  
diameter diameter 14.896 km 0.348 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 3.3557 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Behrend, R. (2003) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Stephens, R.D. (2004) Minor Planet Bull. 31, 4-6.]
[Behrend, R. (2008) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2016) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Benishek, V. (2018) Minor Planet Bull. 45, 187-189.]
geometric albedo albedo 0.240   0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

1499 Pori (1938 UF)          Discovered 1938-Oct-16 by Vaisala, Y. at Turku
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1938 UF = 1951 RU1 = 1959 NA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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