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20287 Munteanu (1998 FT61)
Classification: Main-belt Asteroid          SPK-ID: 2020287
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1844929332787309 3.4479e-08  
a 2.403687744636843 1.0165e-08 au
q 1.960224341942655 8.6719e-08 au
i 1.483371134400694 3.5675e-06 deg
node 254.2533625126963 0.00014375 deg
peri 3.720734578048138 0.00014434 deg
M 343.5551047950259 1.7523e-05 deg
tp 2459262.679053975991
(2021-Feb-17.17905398)
6.6544e-05 TDB
period 1361.179816128356
3.73
8.6344e-06
2.364e-08
d
yr
n .2644764458996745 1.6777e-09 deg/d
Q 2.847151147331031 1.204e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1505  
   data-arc span      10540 days (28.86 yr)  
   first obs. used      1991-07-08  
   last obs. used      2020-05-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49961  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:16:31  

Additional Information
 Earth MOID = .943432 au 
 Jupiter MOID = 2.21122 au 
 T_jup = 3.500 
[ show covariance matrix ]

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 14.79   n/a E2021B10  
diameter diameter 3.720 km 0.125 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.097   0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20287 Munteanu           Discovered 1998 Mar. 20 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Andrei Munteanu (b. 1986) is a finalist in the 2004 Intel Science Talent Search, a science competition for high school seniors, for his earth and space sciences project. He attends the Benjamin Banneker High School, Washington, District of Columbia.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040415/MPCPages.arcLast Updated: 2004-04-20

[ show close-approach data ]
Alternate Designations
 1998 FT61 = 1991 NE4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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