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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 91 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06579214250334808 3.2734e-08  
a 2.471066720246011 5.7155e-09 au
q 2.308489946452305 8.1121e-08 au
i 4.061011016336811 3.6559e-06 deg
node 246.7911046419363 4.7851e-05 deg
peri 10.98410612829937 5.5554e-05 deg
M 157.7807846613801 2.9288e-05 deg
tp 2457978.662733980491
(2017-Aug-13.16273398)
0.00011524 TDB
period 1418.812919757382
3.88
4.9225e-06
1.348e-08
d
yr
n .2537332406456803 8.8031e-10 deg/d
Q 2.633643494039718 6.0915e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3179  
   data-arc span      49089 days (134.40 yr)  
   first obs. used      1885-06-06  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43217  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 01:51:20  

Additional Information
 Earth MOID = 1.29322 au 
 Jupiter MOID = 2.39063 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 10.2   n/a MPO265956  
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-January); 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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