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11400 Rasa (1999 AT21)
Classification: Main-belt Asteroid          SPK-ID: 2011400
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 .08290552919270353 3.4187e-08  
a 2.156943232626331 5.7257e-09 au
q 1.978120712486824 7.3311e-08 au
i .2309539507687742 3.624e-06 deg
node 281.3867082377309 0.00085736 deg
peri 91.75662997256674 0.00085767 deg
M 82.81671969743988 2.2907e-05 deg
tp 2458934.322082151206
(2020-Mar-25.82208215)
7.3438e-05 TDB
period 1157.061651024655
3.17
4.6072e-06
1.261e-08
d
yr
n .3111329458384487 1.2389e-09 deg/d
Q 2.335765752765837 6.2004e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1654  
   data-arc span      16084 days (44.04 yr)  
   first obs. used      1977-02-19  
   last obs. used      2021-03-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51553  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 22:44:52  

Additional Information
 Earth MOID = .976623 au 
 Jupiter MOID = 2.97669 au 
 T_jup = 3.696 
[ 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 15.25   n/a E2021B10  
diameter diameter 2.438 km 0.093 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.326   0.085 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11400 Raša           Discovered 1999 Jan. 15 by K. Korlevic at Visnjan.
Raša is a river in the Istrian peninsula.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20051215/MPCPages.arcLast Updated: 2006-03-22

Alternate Designations
 1999 AT21 = 1977 DK9 = 1988 WL 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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