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21150 (1993 LF1)
Classification: Main-belt Asteroid          SPK-ID: 2021150
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1490021901247219 1.909e-08  
a 2.560910190042267 9.0501e-09 au
q 2.179328963013252 5.0429e-08 au
i 12.01109237641292 3.6656e-07 deg
node 330.6112213920267 3.2306e-06 deg
peri 279.7533114773123 4.2402e-06 deg
M 247.2028845703284 7.0628e-06 deg
tp 2459669.513606299444
(2022-Mar-31.01360630)
3.0742e-05 TDB
period 1496.890214121421
4.10
7.9349e-06
2.172e-08
d
yr
n .2404985994322216 1.2749e-09 deg/d
Q 2.942491417071283 1.0399e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2446  
   data-arc span      10127 days (27.73 yr)  
   first obs. used      1993-06-13  
   last obs. used      2021-03-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44556  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-17 02:54:30  

Additional Information
 Earth MOID = 1.20232 au 
 Jupiter MOID = 2.2549 au 
 T_jup = 3.389 
[ 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 13.63   n/a E2021B10  
diameter diameter 5.199 km 0.059 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.180   0.036 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

21150 (1993 LF1)          Discovered 1993-Jun-13 by McNaught, R. H. at Siding Spring
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1993 LF1 = 1999 XT209 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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