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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08297492521766069 4.4381e-08  
a 2.157348677224163 7.9431e-09 au
q 1.978342832063069 9.8209e-08 au
i .2307819159300155 3.725e-06 deg
node 281.3827025530437 0.0011173 deg
peri 91.40853427985984 0.0011176 deg
M 256.4768976445934 2.4081e-05 deg
tp 2458933.323297098073
(2020-Mar-24.82329710)
7.8041e-05 TDB
period 1157.387908874322
3.17
6.392e-06
1.75e-08
d
yr
n .3110452400959819 1.7178e-09 deg/d
Q 2.336354522385257 8.6021e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1336  
   data-arc span      15055 days (41.22 yr)  
   first obs. used      1977-02-19  
   last obs. used      2018-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54086  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-03 17:05:35  

Additional Information
 Earth MOID = .977412 au 
 Jupiter MOID = 2.97876 au 
 T_jup = 3.695 
[ 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 15.2   n/a MPO435807  
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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