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1536 Pielinen (1939 SE)
Classification: Main-belt Asteroid          SPK-ID: 2001536
[ 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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1955998987487217 2.7055e-08  
a 2.20375778950895 4.5571e-09 au
q 1.772702989014292 6.0386e-08 au
i 1.534439940694063 2.9317e-06 deg
node 195.6872535216575 0.00011623 deg
peri 170.6537632386861 0.00011656 deg
M 237.2099579356477 1.0699e-05 deg
tp 2459408.072492029796
(2021-Jul-12.57249203)		 3.6346e-05 TDB
period 1194.934822596035
3.27		 3.7064e-06
1.015e-08		 d
yr
n .3012716620124001 9.3448e-10 deg/d
Q 2.634812590003607 5.4484e-09 au
   Orbit Determination Parameters
   # obs. used (total)      3042  
   data-arc span      42628 days (116.71 yr)  
   first obs. used      1903-10-01  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41874  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:32:43  

Additional Information
 Earth MOID = .771208 au 
 Jupiter MOID = 2.82692 au 
 T_jup = 3.637 
[ 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 12.7   n/a MPO267713  
diameter diameter 7.975 km 0.109 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 66.22 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Behrend, R. (2011) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Pravec, P.; Wolf, M.; Sarounova, L. (2011) http://www.asu.cas.cz/~ppravec/neo.htm]
[Stephens, R.D. (2011) Posting on CALL web site. http://www.minorplanet.info/call.html]
[Casalnuovo, G.B. (2016) Minor Planet Bull. 43, 112-115.]
geometric albedo albedo 0.253   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

1536 Pielinen (1939 SE)          Discovered 1939-Sep-18 by Vaisala, Y. at Turku
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1939 SE = 1929 RZ = 1931 ED = 1934 CW = 1939 TP = 1939 UK = 1952 RW = A903 SF = A916 RA 
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