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248 Lameia (A885 LA)
Classification: Main-belt Asteroid          SPK-ID: 2000248
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 104 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06574148939136697 1.1722e-08  
a 2.470297970520802 4.7824e-09 au
q 2.307896902698293 2.9825e-08 au
i 4.060882025033953 2.0012e-07 deg
node 246.780511375993 1.0253e-05 deg
peri 11.47086998393784 1.9942e-05 deg
M 359.3008277639914 1.8335e-05 deg
tp 2459399.254254785517
(2021-Jul-03.75425479)
7.2228e-05 TDB
period 1418.150881457104
3.88
4.1182e-06
1.128e-08
d
yr
n .2538516914576195 7.3717e-10 deg/d
Q 2.632699038343311 5.0968e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3965  
   data-arc span      49694 days (136.05 yr)  
   first obs. used      1885-06-06  
   last obs. used      2021-06-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .39935  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 10:46:40  

Additional Information
 Earth MOID = 1.29298 au 
 Jupiter MOID = 2.38969 au 
 T_jup = 3.478 
[ 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 10.27   n/a E2021B10  
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. 2020-October); 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 (A885 LA)          Discovered 1885-Jun-05 by Palisa, J. at Vienna
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A885 LA = 1959 LO 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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