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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1955998956301314 2.6705e-08  
a 2.203757789310145 4.5494e-09 au
q 1.772702995726992 5.9658e-08 au
i 1.534440453764472 2.8733e-06 deg
node 195.6872337140389 0.0001135 deg
peri 170.6537839813645 0.00011384 deg
M 237.2099573342545 1.0653e-05 deg
tp 2459408.072493970827
(2021-Jul-12.57249397)
3.6203e-05 TDB
period 1194.93482243434
3.27
3.7002e-06
1.013e-08
d
yr
n .3012716620531675 9.3291e-10 deg/d
Q 2.634812582893299 5.4393e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3174  
   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      .41221  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:18:00  

Additional Information
 Earth MOID = .771208 au 
 Jupiter MOID = 2.82692 au 
 T_jup = 3.637 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456755.5 (2014-Apr-08.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1951749600148841 2.6712e-08  
q 1.77407278788066 5.9681e-08 au
tp 2457016.502425053374
(2014-Dec-25.00242505)
3.1781e-05 TDB
node 195.7462836703753 0.0001138 deg
peri 170.3169883468748 0.00011414 deg
i 1.530972141185804 2.8719e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      3174  
   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      .41221  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:18:00  

Additional Information
 Jupiter MOID = 2.82692 au 
 T_jup = 3.637 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.135352516999394E-16 -1.591245407908267E-15 -2.239733816890551E-13 -5.630229099602495E-16 -5.527147917477645E-14 -8.307746128130591E-17
q -1.591245407908267E-15 3.561833628648994E-15 5.581210199472175E-13 1.0170425311512E-15 1.382483072206022E-13 2.101055674851978E-16
tp -2.239733816890551E-13 5.581210199472175E-13 1.01002908821644E-9 -3.698372701656155E-12 2.867332072765226E-10 2.636845045948382E-13
node -5.630229099602495E-16 1.0170425311512E-15 -3.698372701656155E-12 1.295065246751711E-8 -1.294680522135077E-8 -3.621784328122599E-11
peri -5.527147917477645E-14 1.382483072206022E-13 2.867332072765226E-10 -1.294680522135077E-8 1.302735088509311E-8 3.627810534433393E-11
i -8.307746128130591E-17 2.101055674851978E-16 2.636845045948382E-13 -3.621784328122599E-11 3.627810534433393E-11 8.248080989699194E-12

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. 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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