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3606 Pohjola (1939 SF)
Classification: Main-belt Asteroid          SPK-ID: 2003606
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2284968669619959 1.4594e-08  
a 2.60647045563621 8.611e-09 au
q 2.01090012269433 3.7246e-08 au
i 12.42014750887858 9.8284e-07 deg
node 250.0844427540909 1.676e-06 deg
peri 108.8551717334744 4.8842e-06 deg
M 163.9015093203297 4.8697e-06 deg
tp 2458696.725538332375
(2019-Aug-01.22553833)
1.9043e-05 TDB
period 1537.013339565982
4.21
7.6168e-06
2.085e-08
d
yr
n .2342204785949716 1.1607e-09 deg/d
Q 3.202040788578091 1.0579e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2868  
   data-arc span      29851 days (81.73 yr)  
   first obs. used      1939-09-19  
   last obs. used      2021-06-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41565  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-07 22:35:19  

Additional Information
 Earth MOID = 1.04787 au 
 Jupiter MOID = 2.44237 au 
 T_jup = 3.342 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457519.5 (2016-May-11.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2303705067778476 1.474e-08  
q 2.004652894301491 3.7694e-08 au
tp 2457157.779036804694
(2015-May-15.27903680)
1.6701e-05 TDB
node 250.2207956789177 1.6829e-06 deg
peri 108.3211758543034 4.8038e-06 deg
i 12.40394366198042 9.8258e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2868  
   data-arc span      29851 days (81.73 yr)  
   first obs. used      1939-09-19  
   last obs. used      2021-06-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41565  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-07 22:35:19  

Additional Information
 Jupiter MOID = 2.44237 au 
 T_jup = 3.342 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.172607356791251E-16 -5.474562834087574E-16 7.55233429275674E-14 3.034232662916356E-15 -3.080545439357353E-15 -4.235364384096947E-15
q -5.474562834087574E-16 1.420838653086988E-15 -1.908015278863592E-13 -7.882964968183133E-15 9.613883523195552E-15 1.106788972860383E-14
tp 7.55233429275674E-14 -1.908015278863592E-13 2.789379848394759E-10 1.524270292466575E-12 7.055461889280751E-11 -3.775434970787576E-12
node 3.034232662916356E-15 -7.882964968183133E-15 1.524270292466575E-12 2.832254821724712E-12 -2.414352159176502E-12 -4.340637626280623E-13
peri -3.080545439357353E-15 9.613883523195552E-15 7.055461889280751E-11 -2.414352159176502E-12 2.307649116765117E-11 -3.569403934163426E-13
i -4.235364384096947E-15 1.106788972860383E-14 -3.775434970787576E-12 -4.340637626280623E-13 -3.569403934163426E-13 9.654719440042484E-13

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.38   n/a MPCxxxxx  
diameter diameter 8.887 km 0.306 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.847 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2019) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Polakis, T. (2020) Minor Planet Bull. 47, 94-101.]
geometric albedo albedo 0.323   0.047 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

3606 Pohjola (1939 SF)          Discovered 1939-Sep-19 by Vaisala, Y. at Turku
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1939 SF = 1973 WO = 1985 LE 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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