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1523 Pieksamaki (1939 BC)
Classification: Main-belt Asteroid          SPK-ID: 2001523
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09334799224300584 4.9407e-08  
a 2.24249971473833 6.6527e-09 au
q 2.033166868761994 1.1113e-07 au
i 5.141924114326972 5.3116e-06 deg
node 327.8049086643796 4.1993e-05 deg
peri 187.8198569409765 4.6505e-05 deg
M 13.36715738547553 2.0472e-05 deg
tp 2457554.955747109028
(2016-Jun-15.45574711)
6.9715e-05 JED
period 1226.583226929403
3.36
5.4582e-06
1.494e-08
d
yr
n .2934982250664025 1.3061e-09 deg/d
Q 2.451832560714667 7.2737e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1674  
   data-arc span      29248 days (80.08 yr)  
   first obs. used      1936-03-20  
   last obs. used      2016-04-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49491  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 12:34:27  

Additional Information
 Earth MOID = 1.04205 au 
 Jupiter MOID = 2.53979 au 
 T_jup = 3.622 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.4 mag n/a MPO358641  
rotation period rot_per 5.3202 h n/a LCDB (Rev. 2016-February); Warner et al., 2009 Published Reference List:
[Lagerkvist, C.-I. (1979) Icarus 38, 106-114.]
[Pray, D.P.; Galad, A.; Gajdos, S.; Vilagi, J.; et al. (2006) Minor Planet Bul. 33, 92-95.]
[Kryszczynska, A.; Colas, F.; Polinska, M.; Hirsch, R.; et al. (2012) Astron. Astrophys. 546, A72.]
[Behrend, R. (2013) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]

1523 Pieksamaki (1939 BC)          Discovered 1939-Jan-18 by Vaisala, Y. at Turku
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1939 BC = 1936 FO1 = 1936 HC = 1946 GB = 1949 AC 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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