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21507 Bhasin (1998 KZ30)
Classification: Main-belt Asteroid          SPK-ID: 2021507
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1574867848638264 3.2633e-08  
a 2.426454276037559 7.2993e-09 au
q 2.04431979348532 7.8896e-08 au
i 1.901858566314296 3.1377e-06 deg
node 209.346689765988 0.00012223 deg
peri 59.62357841104455 0.00012273 deg
M 18.74202909518979 1.1099e-05 deg
tp 2459324.626184294171
(2021-Apr-20.12618429)
4.2572e-05 TDB
period 1380.564159978777
3.78
6.2295e-06
1.706e-08
d
yr
n .260762962299075 1.1766e-09 deg/d
Q 2.808588758589798 8.4488e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1277  
   data-arc span      9987 days (27.34 yr)  
   first obs. used      1994-04-06  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5209  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-24 22:43:05  

Additional Information
 Earth MOID = 1.029 au 
 Jupiter MOID = 2.27621 au 
 T_jup = 3.492 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457426.5 (2016-Feb-08.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1578691302260675 3.2619e-08  
q 2.042974272242046 7.8866e-08 au
tp 2457942.988417790953
(2017-Jul-08.48841779)
4.3058e-05 TDB
node 209.4182414076337 0.00012239 deg
peri 59.33826099652238 0.0001229 deg
i 1.900043680725583 3.137e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1277  
   data-arc span      9987 days (27.34 yr)  
   first obs. used      1994-04-06  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5209  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-24 22:43:05  

Additional Information
 Jupiter MOID = 2.27621 au 
 T_jup = 3.492 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.063968704270682E-15 -2.564696272443327E-15 3.514761212734944E-13 4.561058827831035E-15 8.21111367376995E-14 -4.782109551908775E-16
q -2.564696272443327E-15 6.219913247394451E-15 -8.937991715484065E-13 -9.787249364078895E-15 -2.145428329364816E-13 1.146007152686002E-15
tp 3.514761212734944E-13 -8.937991715484065E-13 1.854019123332177E-9 3.467277847117276E-12 4.972692404982182E-10 -3.555996871209478E-13
node 4.561058827831035E-15 -9.787249364078895E-15 3.467277847117276E-12 1.498013249429176E-8 -1.497084850787847E-8 -1.51446637280197E-11
peri 8.21111367376995E-14 -2.145428329364816E-13 4.972692404982182E-10 -1.497084850787847E-8 1.510359179984634E-8 1.504468485104925E-11
i -4.782109551908775E-16 1.146007152686002E-15 -3.555996871209478E-13 -1.51446637280197E-11 1.504468485104925E-11 9.840650830902349E-12

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.37   n/a MPO636387  
diameter diameter 1.944 km 0.301 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.389   0.109 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

21507 Bhasin           Discovered 1998 May 22 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Jeffrey M. Bhasin (b. 1986) was awarded first place and Best in Category in the 2005 Intel International Science and Engineering Fair for his medicine and health project. He attends the Rocky River High School, Rocky River, Ohio, 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: 20050822/MPCPages.arcLast Updated: 2005-08-26

Alternate Designations
 1998 KZ30 = 1994 GS4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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