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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 ]

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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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2282578635071397 3.1938e-08  
a 2.606467190848877 9.0092e-09 au
q 2.011520558564257 8.2453e-08 au
i 12.42154059856937 4.147e-06 deg
node 250.1003299115791 1.4565e-05 deg
peri 108.8116557553725 1.679e-05 deg
M 71.21207206838189 8.3197e-06 deg
tp 2458696.461947057652
(2019-Jul-31.96194706)
3.5299e-05 TDB
period 1537.010451741128
4.21
7.969e-06
2.182e-08
d
yr
n .2342209186620634 1.2144e-09 deg/d
Q 3.201413823133498 1.1066e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2425  
   data-arc span      29644 days (81.16 yr)  
   first obs. used      1939-09-19  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4237  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:13:11  

Additional Information
 Earth MOID = 1.04926 au 
 Jupiter MOID = 2.44128 au 
 T_jup = 3.342 
[ 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 12.3   n/a MPO448949  
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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