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JPL Small-Body Database Browser
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248 Lameia
Classification: Main-belt Asteroid          SPK-ID: 2000248
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 95 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06577237214064413 3.161e-08  
a 2.470839324178464 5.6025e-09 au
q 2.30832636064886 7.8653e-08 au
i 4.060720181191106 3.5114e-06 deg
node 246.7875274880869 4.6534e-05 deg
peri 11.20702342530828 5.4178e-05 deg
M 259.0337187137272 2.9021e-05 deg
tp 2459398.368030427397
(2021-Jul-02.86803043)
0.00011456 TDB
period 1418.617078188227
3.88
4.8249e-06
1.321e-08
d
yr
n .2537682687845338 8.631e-10 deg/d
Q 2.633352287708067 5.971e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3396  
   data-arc span      49185 days (134.66 yr)  
   first obs. used      1885-06-06  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41959  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:22:01  

Additional Information
 Earth MOID = 1.29336 au 
 Jupiter MOID = 2.39093 au 
 T_jup = 3.478 
[ 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 10.3   n/a MPO502155  
diameter diameter 50.120 km 0.311 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 11.912 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Binzel, R.P. (1987) Icarus 72, 135-208.]
[Pilcher, F.; Benishek, V.; Hills, K. (2015) Minor Planet Bull. 42, 137-139.]
geometric albedo albedo 0.062   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
B-V BV 0.830   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=4.89 deg.
U-B UB 0.340   0.030 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=4.89 deg.

248 Lameia          Discovered 1885-Jun-05 by Palisa, J. at Vienna
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1959 LO 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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