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10811 Lau (1993 FM19)
Classification: Main-belt Asteroid          SPK-ID: 2010811
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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2180884921170086 2.1532e-08  
a 2.931046524676833 1.3458e-08 au
q 2.291819007785264 6.7193e-08 au
i 7.202430755382041 8.3757e-07 deg
node 120.1435905841766 2.3052e-06 deg
peri 291.1469105784967 5.2962e-06 deg
M 351.8335284879491 6.9549e-06 deg
tp 2459438.078081445181
(2021-Aug-11.57808145)
3.5551e-05 TDB
period 1832.873511917288
5.02
1.2623e-05
3.456e-08
d
yr
n .196412899013102 1.3527e-09 deg/d
Q 3.570274041568402 1.6393e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2331  
   data-arc span      14433 days (39.52 yr)  
   first obs. used      1982-01-19  
   last obs. used      2021-07-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46541  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 21:43:10  

Additional Information
 Earth MOID = 1.31427 au 
 Jupiter MOID = 1.85445 au 
 T_jup = 3.229 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457311.5 (2015-Oct-16.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2236949733859246 2.1773e-08  
q 2.273719495118388 6.816e-08 au
tp 2457597.400865648959
(2016-Jul-27.90086565)
2.9555e-05 TDB
node 120.4490073624811 2.333e-06 deg
peri 289.7888023342293 5.0606e-06 deg
i 7.177559591598222 8.3251e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2331  
   data-arc span      14433 days (39.52 yr)  
   first obs. used      1982-01-19  
   last obs. used      2021-07-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46541  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 21:43:10  

Additional Information
 Jupiter MOID = 1.85445 au 
 T_jup = 3.229 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.740461679311458E-16 -1.468746948204272E-15 -3.185227417583649E-13 8.260943562887361E-16 -7.946375821180937E-15 -1.721996225460462E-16
q -1.468746948204272E-15 4.645751664866824E-15 1.004285303911849E-12 -1.607471050247616E-15 2.244100269013943E-14 1.240149003412038E-15
tp -3.185227417583649E-13 1.004285303911849E-12 8.734975641606188E-10 1.233432032637477E-11 1.215028362855742E-10 1.206226134397675E-11
node 8.260943562887361E-16 -1.607471050247616E-15 1.233432032637477E-11 5.442949087512051E-12 -2.560210568412292E-12 1.309837590819098E-12
peri -7.946375821180937E-15 2.244100269013943E-14 1.215028362855742E-10 -2.560210568412292E-12 2.560944479691772E-11 9.336284653994593E-13
i -1.721996225460462E-16 1.240149003412038E-15 1.206226134397675E-11 1.309837590819098E-12 9.336284653994593E-13 6.930776290425053E-13

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 12.62   n/a MPO636229  
diameter diameter 7.673 km 0.063 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.274   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

10811 Lau           Discovered 1993 Mar. 17 at the European Southern Observatory in the course of the Uppsala-ESO Survey of Asteroids and Comets.
Lau is a parish on southern Gotland. The resonating echo in its large church lasts for up to twelve seconds.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20060219/MPCPages.arcLast Updated: 2010-06-03

[ show close-approach data ]
Alternate Designations
 1993 FM19 = 1982 BK9 = 1990 RE12 = 1991 YQ 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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