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JPL Small-Body Database Browser
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1504 Lappeenranta (1939 FM)
Classification: Main-belt Asteroid          SPK-ID: 2001504
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .157941775453791 4.5847e-08  
a 2.3988477589404 7.6606e-09 au
q 2.019969484850006 1.0869e-07 au
i 11.05126311511686 3.8591e-06 deg
node 94.8598449331126 2.6151e-05 deg
peri 50.89052312599868 2.9137e-05 deg
M 227.3121673625137 1.3411e-05 deg
tp 2459100.685452380882
(2020-Sep-08.18545238)		 5.1417e-05 TDB
period 1357.070646779454
3.72		 6.5006e-06
1.78e-08		 d
yr
n .265277272671351 1.2707e-09 deg/d
Q 2.777726033030795 8.8705e-09 au
   Orbit Determination Parameters
   # obs. used (total)      2669  
   data-arc span      29319 days (80.27 yr)  
   first obs. used      1939-05-12  
   last obs. used      2019-08-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39429  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-23 19:18:14  

Additional Information
 Earth MOID = 1.05293 au 
 Jupiter MOID = 2.30055 au 
 T_jup = 3.485 
[ 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 11.88   n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 3
diameter diameter 11.336 km 0.149 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 15.190 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Garlitz, J. (2013) Posting on CALL web site. http://www.minorplanet.info/call.html]
[Polakis, T.; Skiff, B.A. (2017) Minor Planet Bull. 44, 299-302.]
geometric albedo albedo 0.270   0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.880   0.042 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=13.51 deg.
U-B UB 0.418   0.060 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=13.51 deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices

1504 Lappeenranta (1939 FM)          Discovered 1939-Mar-23 by Oterma, L. at Turku
Reference: DISCOVERY.DBLast Updated: 2003-08-29
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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