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173164 (1996 XZ18)
Classification: Main-belt Asteroid          SPK-ID: 2173164
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2306560567704585 4.6808e-08  
a 2.354132226046335 1.1596e-08 au
q 1.811137369670226 1.1137e-07 au
i 3.398740908088465 5.5304e-06 deg
node 50.2245535042537 7.5975e-05 deg
peri 347.192095873564 7.691e-05 deg
M 270.1351792328143 1.6618e-05 deg
tp 2459529.830472534260
(2021-Nov-11.33047253)
6.2932e-05 TDB
period 1319.303472706925
3.61
9.748e-06
2.669e-08
d
yr
n .2728712593027274 2.0162e-09 deg/d
Q 2.897127082422444 1.4271e-08 au
  Orbit Determination Parameters
   # obs. used (total)      382  
   data-arc span      8600 days (23.55 yr)  
   first obs. used      1996-12-07  
   last obs. used      2020-06-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5619  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 20:55:54  

Additional Information
 Earth MOID = .817709 au 
 Jupiter MOID = 2.52955 au 
 T_jup = 3.517 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457090.5 (2015-Mar-09.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2298616799004456 4.6691e-08  
q 1.812975568668792 1.1078e-07 au
tp 2456893.207748625104
(2014-Aug-23.70774862)
4.8303e-05 TDB
node 50.29660766625379 7.5985e-05 deg
peri 347.3720400793363 7.6931e-05 deg
i 3.398777034901624 5.5282e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      382  
   data-arc span      8600 days (23.55 yr)  
   first obs. used      1996-12-07  
   last obs. used      2020-06-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5619  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 20:55:54  

Additional Information
 Jupiter MOID = 2.52955 au 
 T_jup = 3.517 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.180018704039273E-15 -5.155998972228662E-15 2.57174860930915E-14 3.531921486683044E-15 -1.284273528887289E-14 1.748318180445482E-16
q -5.155998972228662E-15 1.227213238232874E-14 2.276902711196289E-13 -7.298737339995541E-15 9.835903233832622E-14 -4.071478064034095E-16
tp 2.57174860930915E-14 2.276902711196289E-13 2.333177831713763E-9 7.504581104150383E-12 5.958648805370709E-10 1.421412467512606E-14
node 3.531921486683044E-15 -7.298737339995541E-15 7.504581104150383E-12 5.773718248290594E-9 -5.761221566514162E-9 -3.122643380201451E-11
peri -1.284273528887289E-14 9.835903233832622E-14 5.958648805370709E-10 -5.761221566514162E-9 5.918395616585186E-9 3.116619171586182E-11
i 1.748318180445482E-16 -4.071478064034095E-16 1.421412467512606E-14 -3.122643380201451E-11 3.116619171586182E-11 3.056129103833586E-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 16.53   n/a E2021B55  

173164 (1996 XZ18)          Discovered 1996-Dec-07 by Kobayashi, T. at Oizumi
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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