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17927 Ghoshal (1999 GL20)
Classification: Main-belt Asteroid          SPK-ID: 2017927
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05543115070432415 3.6888e-08  
a 2.237632156558764 6.7629e-09 au
q 2.113597631267713 8.1296e-08 au
i 4.64215287491112 2.9401e-06 deg
node 81.19006216216718 4.8884e-05 deg
peri 82.75213582426515 5.7114e-05 deg
M 150.8033190260566 3.1053e-05 deg
tp 2458488.358619306539
(2019-Jan-04.85861931)
0.0001046 TDB
period 1222.59177212001
3.35
5.5426e-06
1.517e-08
d
yr
n .2944564229937107 1.3349e-09 deg/d
Q 2.361666681849814 7.1378e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1704  
   data-arc span      10997 days (30.11 yr)  
   first obs. used      1990-09-14  
   last obs. used      2020-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48484  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:18:00  

Additional Information
 Earth MOID = 1.12677 au 
 Jupiter MOID = 2.61099 au 
 T_jup = 3.631 
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Orbital Elements at Epoch 2457350.5 (2015-Nov-24.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05530536483117703 3.6757e-08  
q 2.113764493933132 8.0976e-08 au
tp 2457263.702006314665
(2015-Aug-29.20200631)
0.00010347 TDB
node 81.2069095715145 4.8868e-05 deg
peri 82.11502365254229 5.7235e-05 deg
i 4.643089812999802 2.9409e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1704  
   data-arc span      10997 days (30.11 yr)  
   first obs. used      1990-09-14  
   last obs. used      2020-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48484  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:18:00  

Additional Information
 Jupiter MOID = 2.61099 au 
 T_jup = 3.631 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.351108582264849E-15 -2.967761365766549E-15 1.136658218402085E-12 -3.967253993748563E-15 3.312203741618405E-13 1.142774008763784E-15
q -2.967761365766549E-15 6.557176375500299E-15 -2.322893549074549E-12 9.06804238730057E-15 -6.776896518994315E-13 -2.458796014301083E-15
tp 1.136658218402085E-12 -2.322893549074549E-12 1.070568393145469E-8 -4.602428742256201E-12 3.100517449681317E-9 1.779672221414548E-12
node -3.967253993748563E-15 9.06804238730057E-15 -4.602428742256201E-12 2.388121668958367E-9 -2.381419498316657E-9 -1.81821893930413E-11
peri 3.312203741618405E-13 -6.776896518994315E-13 3.100517449681317E-9 -2.381419498316657E-9 3.275793409659339E-9 1.864019646398319E-11
i 1.142774008763784E-15 -2.458796014301083E-15 1.779672221414548E-12 -1.81821893930413E-11 1.864019646398319E-11 8.648772584667328E-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 14.9   n/a MPO332985  
diameter diameter 2.248 km 0.316 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.319   0.083 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17927 Ghoshal           Discovered 1999 Apr. 15 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Shivani Ghoshal (b. 1986) was awarded fourth place in the 2003 Intel International Science and Engineering Fair for her behavioral and social sciences project. She attends the Mira Loma High School, Sacramento, California, 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: 20040614/MPCPages.arcLast Updated: 2009-12-11

Alternate Designations
 1999 GL20 = 1990 RA14 = 1992 DO1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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