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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1870598350048812 3.557e-08  
a 2.669607075195658 8.5368e-09 au
q 2.170230816181694 9.8569e-08 au
i 12.18056554620383 3.8355e-06 deg
node 239.6166409557983 1.7268e-05 deg
peri 74.81960263734786 2.0181e-05 deg
M 306.7459879482865 1.17e-05 deg
tp 2459236.178125508546
(2021-Jan-21.67812551)
5.227e-05 TDB
period 1593.196867509003
4.36
7.642e-06
2.092e-08
d
yr
n .2259607756842176 1.0839e-09 deg/d
Q 3.168983334209621 1.0134e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2452  
   data-arc span      28434 days (77.85 yr)  
   first obs. used      1942-08-11  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41547  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:31:58  

Additional Information
 Earth MOID = 1.19406 au 
 Jupiter MOID = 2.19494 au 
 T_jup = 3.325 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456588.5 (2013-Oct-23.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1841763306488624 3.5339e-08  
q 2.180991083303583 9.7514e-08 au
tp 2456045.366691187581
(2012-Apr-27.86669119)
4.8696e-05 TDB
node 239.8400660269611 1.7214e-05 deg
peri 74.2237078659729 2.0306e-05 deg
i 12.19472292160811 3.8378e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2452  
   data-arc span      28434 days (77.85 yr)  
   first obs. used      1942-08-11  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41547  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:31:58  

Additional Information
 Jupiter MOID = 2.19494 au 
 T_jup = 3.325 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.248833900055214E-15 -3.439031512387509E-15 -1.622268658721837E-13 2.243546436988017E-16 -1.550759854839872E-14 -4.581344019607676E-16
q -3.439031512387509E-15 9.50898263617E-15 4.993316048051895E-13 5.523010064628138E-16 5.61336906357416E-14 1.176957755831313E-15
tp -1.622268658721837E-13 4.993316048051895E-13 2.371323699832675E-9 6.515670010683963E-13 5.38775352898289E-10 2.376455430056532E-12
node 2.243546436988017E-16 5.523010064628138E-16 6.515670010683963E-13 2.963290990425348E-10 -2.891200038247739E-10 -5.908098409877873E-12
peri -1.550759854839872E-14 5.61336906357416E-14 5.38775352898289E-10 -2.891200038247739E-10 4.123258191985746E-10 6.314851170097398E-12
i -4.581344019607676E-16 1.176957755831313E-15 2.376455430056532E-12 -5.908098409877873E-12 6.314851170097398E-12 1.472835410252646E-11

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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