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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1955210049420031 9.9364e-09  
a 2.204406364376728 3.7502e-09 au
q 1.773398616713243 2.2101e-08 au
i 1.534241174481343 3.0251e-07 deg
node 195.6695986610737 1.3403e-05 deg
peri 170.5797301715265 1.5363e-05 deg
M 297.5429325149666 4.3459e-06 deg
tp 2459407.902983570155
(2021-Jul-12.40298357)		 1.4747e-05 TDB
period 1195.462372663392
3.27		 3.0506e-06
8.352e-09		 d
yr
n .301138712712429 7.6846e-10 deg/d
Q 2.635414112040213 4.4834e-09 au
   Orbit Determination Parameters
   # obs. used (total)      3201  
   data-arc span      42710 days (116.93 yr)  
   first obs. used      1903-10-01  
   last obs. used      2020-09-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41308  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-16 12:46:32  

Additional Information
 Earth MOID = .770319 au 
 Jupiter MOID = 2.82722 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 12.73   n/a E2021B10  
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. 2020-October); 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

[ show close-approach data ]
Alternate Designations
 1939 SE = 1929 RZ = 1931 ED = 1934 CW = 1939 TP = 1939 UK = 1952 RW = A903 SF = A916 RA 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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