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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1578137244685011 3.7883e-08  
a 2.399378013609482 6.9701e-09 au
q 2.020723232873935 9.1157e-08 au
i 11.0512553093349 3.6005e-06 deg
node 94.85933616471183 2.3595e-05 deg
peri 50.79728128710404 2.6852e-05 deg
M 333.485210436146 1.3326e-05 deg
tp 2459100.484372003344
(2020-Sep-07.98437200)		 5.0392e-05 TDB
period 1357.520633325054
3.72		 5.9153e-06
1.62e-08		 d
yr
n .2651893394196382 1.1556e-09 deg/d
Q 2.778032794345028 8.0701e-09 au
   Orbit Determination Parameters
   # obs. used (total)      2987  
   data-arc span      29488 days (80.73 yr)  
   first obs. used      1939-05-12  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .37567  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:56:50  

Additional Information
 Earth MOID = 1.05321 au 
 Jupiter MOID = 2.29886 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 11.6   n/a MPO502168 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-August); 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.]
[Ditteon, R.; Johnson, D.; Lin, W.; Wang, Z.; Zhao, B. (2019) Minor Planet Bull. 46, 280-282.]
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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