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21858 Gosal (1999 TY155)
Classification: Main-belt Asteroid          SPK-ID: 2021858
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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06322364975081424 3.0433e-08  
a 2.936538929834334 1.3236e-08 au
q 2.750880221054857 8.7849e-08 au
i 3.129042459553514 3.2445e-06 deg
node 110.0961456990027 6.567e-05 deg
peri 150.5171752673163 7.15e-05 deg
M 205.9051553075773 2.94e-05 deg
tp 2459987.251681117857
(2023-Feb-11.75168112)
0.00015134 TDB
period 1838.027779370322
5.03
1.2427e-05
3.402e-08
d
yr
n .1958621104863442 1.3243e-09 deg/d
Q 3.122197638613811 1.4073e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2127  
   data-arc span      16439 days (45.01 yr)  
   first obs. used      1976-03-01  
   last obs. used      2021-03-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52349  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:54:20  

Additional Information
 Earth MOID = 1.7342 au 
 Jupiter MOID = 1.90891 au 
 T_jup = 3.269 
[ 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 13.67   n/a E2021B10  
diameter diameter 6.153 km 0.432 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.107   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

21858 Gosal           Discovered 1999 Oct. 7 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Anudeep D. Gosal (b. 1991) is a finalist in the 2005 Discovery Channel Young Scientist Challenge (DCYSC), a middle school science competition, for his earth & space science project. He attends the Hunter's Creek Middle School, Orlando, Florida.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20051019/MPCPages.arcLast Updated: 2005-10-26

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Alternate Designations
 1999 TY155 = 1976 EV = 1998 QP8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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