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17192 Loharu (1999 XL172)
Classification: Main-belt Asteroid          SPK-ID: 2017192
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09446902181147378 2.9712e-08  
a 2.525371580357217 9.5959e-09 au
q 2.286802197450375 7.425e-08 au
i 4.617945260597025 4.4532e-06 deg
node 329.5670239883415 4.4951e-05 deg
peri 76.07657270804194 5.2722e-05 deg
M 130.3406023228214 2.7076e-05 deg
tp 2458669.782286810072
(2019-Jul-05.28228681)
0.00011007 TDB
period 1465.839295994427
4.01
8.3548e-06
2.287e-08
d
yr
n .2455930885355175 1.3998e-09 deg/d
Q 2.763940963264059 1.0502e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1589  
   data-arc span      14071 days (38.52 yr)  
   first obs. used      1982-09-12  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49817  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 02:29:55  

Additional Information
 Earth MOID = 1.30015 au 
 Jupiter MOID = 2.55089 au 
 T_jup = 3.443 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456801.5 (2014-May-24.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09321507572372539 2.9377e-08  
q 2.290685359741192 7.3215e-08 au
tp 2457200.017248753646
(2015-Jun-26.51724875)
0.00011236 TDB
node 329.6844097193065 4.4867e-05 deg
peri 75.20681135078857 5.2979e-05 deg
i 4.623280095054609 4.4556e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1589  
   data-arc span      14071 days (38.52 yr)  
   first obs. used      1982-09-12  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49817  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 02:29:55  

Additional Information
 Jupiter MOID = 2.55089 au 
 T_jup = 3.443 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.629913057575032E-16 -2.136102246056117E-15 9.180488574311172E-13 -6.852522830802086E-15 2.425757816530195E-13 -3.393382089555026E-16
q -2.136102246056117E-15 5.360447962438788E-15 -2.322675972851502E-12 1.643962585751454E-14 -6.176791843307791E-13 9.823768025746958E-16
tp 9.180488574311172E-13 -2.322675972851502E-12 1.262526266093743E-8 -2.630955602477983E-12 3.177683622436117E-9 -8.552034649281431E-12
node -6.852522830802086E-15 1.643962585751454E-14 -2.630955602477983E-12 2.013086192265084E-9 -2.006828019189412E-9 -6.71509919358116E-11
peri 2.425757816530195E-13 -6.176791843307791E-13 3.177683622436117E-9 -2.006828019189412E-9 2.806802770569125E-9 6.48183918008268E-11
i -3.393382089555026E-16 9.823768025746958E-16 -8.552034649281431E-12 -6.71509919358116E-11 6.48183918008268E-11 1.985224466725114E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.2   n/a MPO309288  
diameter diameter 3.859 km 0.932 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.298   0.141 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17192 Loharu           Discovered 1999 Dec. 10 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Evgeniy E. Loharu (b. 1985) was awarded second place in the 2003 Intel International Science and Engineering Fair for his mathematics team project; and third place in the American Mathematical Society's Karl Menger Memorial Prize. He attends the Continuous Math Education Center, St. Petersburg, Russia.
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 XL172 = 1988 AX2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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