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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0946381532761737 2.892e-08  
a 2.524912710690364 9.0538e-09 au
q 2.28595963456709 7.1476e-08 au
i 4.617987693839127 3.7006e-06 deg
node 329.5675597039076 4.1678e-05 deg
peri 76.01280731773707 4.7115e-05 deg
M 178.5502719735771 2.29e-05 deg
tp 2458669.681463091710
(2019-Jul-05.18146309)
9.2032e-05 TDB
period 1465.43979124101
4.01
7.8821e-06
2.158e-08
d
yr
n .2456600415463902 1.3213e-09 deg/d
Q 2.763865786813638 9.9106e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1764  
   data-arc span      14158 days (38.76 yr)  
   first obs. used      1982-09-12  
   last obs. used      2021-06-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49517  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 04:21:27  

Additional Information
 Earth MOID = 1.29968 au 
 Jupiter MOID = 2.55176 au 
 T_jup = 3.443 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457132.5 (2015-Apr-20.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09302517907280262 2.8696e-08  
q 2.290661153198061 7.0785e-08 au
tp 2457200.295831154985
(2015-Jun-26.79583116)
9.2244e-05 TDB
node 329.6839242377281 4.1591e-05 deg
peri 75.28176816204183 4.7299e-05 deg
i 4.623483957021405 3.7029e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1764  
   data-arc span      14158 days (38.76 yr)  
   first obs. used      1982-09-12  
   last obs. used      2021-06-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49517  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 04:21:27  

Additional Information
 Jupiter MOID = 2.55176 au 
 T_jup = 3.443 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.234567772907023E-16 -2.018290481304021E-15 5.121812631236773E-13 -9.928057657131644E-15 1.37327348704001E-13 3.658605360763144E-16
q -2.018290481304021E-15 5.010473011461231E-15 -1.123853679122652E-12 2.402280477188081E-14 -3.054121393866026E-13 -8.73346947656102E-16
tp 5.121812631236773E-13 -1.123853679122652E-12 8.508949530379104E-9 -1.22994878137892E-11 2.089447471444299E-9 -4.589003110406294E-12
node -9.928057657131644E-15 2.402280477188081E-14 -1.22994878137892E-11 1.72981547538133E-9 -1.726822340446946E-9 -2.554575101253635E-11
peri 1.37327348704001E-13 -3.054121393866026E-13 2.089447471444299E-9 -1.726822340446946E-9 2.237218131391812E-9 2.437040359110556E-11
i 3.658605360763144E-16 -8.73346947656102E-16 -4.589003110406294E-12 -2.554575101253635E-11 2.437040359110556E-11 1.371164526212821E-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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