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21404 Atluri (1998 FD61)
Classification: Main-belt Asteroid          SPK-ID: 2021404
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1219166663657237 1.5756e-08  
a 2.171172715833211 5.4158e-09 au
q 1.906470576214611 3.4993e-08 au
i 4.874493289576001 6.1079e-07 deg
node 185.778183487217 6.6192e-06 deg
peri 48.83798540379595 8.2372e-06 deg
M 61.8905274818785 6.1733e-06 deg
tp 2459195.608450116674
(2020-Dec-12.10845012)
1.9553e-05 TDB
period 1168.530321205821
3.20
4.3722e-06
1.197e-08
d
yr
n .308079297102459 1.1527e-09 deg/d
Q 2.435874855451811 6.0761e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2455  
   data-arc span      9017 days (24.69 yr)  
   first obs. used      1996-10-18  
   last obs. used      2021-06-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49083  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 05:07:33  

Additional Information
 Earth MOID = .900145 au 
 Jupiter MOID = 2.55288 au 
 T_jup = 3.674 
[ 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 14.4   n/a MPO502325  
diameter diameter 3.483 km 0.169 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.210   0.061 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

21404 Atluri           Discovered 1998 Mar. 20 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Kamalakar Atluri (b. 1988) was awarded second place in the 2006 Intel International Science and Engineering Fair for his biochemistry team project. He attends the Herricks Senior High School, New Hyde Park, New York, U.S.A.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20060711/MPCPages.arcLast Updated: 2006-07-17

Alternate Designations
 1998 FD61 = 1999 RO213 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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