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190438 (1999 XD193)
Classification: Main-belt Asteroid          SPK-ID: 2190438
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2458858660635438 4.1926e-08  
a 2.804414185183986 1.8389e-08 au
q 2.114848374459134 1.1798e-07 au
i 6.662134070528062 5.7442e-06 deg
node 321.8602190278801 4.0589e-05 deg
peri 65.55089481181722 4.25e-05 deg
M 205.4977405599742 1.4234e-05 deg
tp 2459936.696915971429
(2022-Dec-23.19691597)
7.298e-05 TDB
period 1715.385203493373
4.70
1.6872e-05
4.619e-08
d
yr
n .2098653989009943 2.0642e-09 deg/d
Q 3.493979995908838 2.2911e-08 au
  Orbit Determination Parameters
   # obs. used (total)      472  
   data-arc span      7521 days (20.59 yr)  
   first obs. used      1999-10-14  
   last obs. used      2020-05-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58449  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:07:39  

Additional Information
 Earth MOID = 1.12824 au 
 Jupiter MOID = 2.03818 au 
 T_jup = 3.269 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457406.5 (2016-Jan-19.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2449086112119101 4.1814e-08  
q 2.11867768748386 1.1749e-07 au
tp 2458222.083506828974
(2018-Apr-13.58350683)
6.1921e-05 TDB
node 321.8782040751717 4.0585e-05 deg
peri 65.75023131401377 4.2519e-05 deg
i 6.660766166545264 5.743e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      472  
   data-arc span      7521 days (20.59 yr)  
   first obs. used      1999-10-14  
   last obs. used      2020-05-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58449  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:07:39  

Additional Information
 Jupiter MOID = 2.03818 au 
 T_jup = 3.269 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.748418411403161E-15 -4.87883040371264E-15 -1.683548870542197E-13 -3.614510246562827E-15 -8.331849842450816E-14 -1.63365070735473E-15
q -4.87883040371264E-15 1.380403522358421E-14 9.671145588949043E-13 6.731481013949192E-15 3.103371470145817E-13 4.415792446649527E-15
tp -1.683548870542197E-13 9.671145588949043E-13 3.834202975462712E-9 -2.179788265160629E-11 7.923540007443555E-10 -3.978093876725593E-12
node -3.614510246562827E-15 6.731481013949192E-15 -2.179788265160629E-11 1.64711392477141E-9 -1.639925954793268E-9 9.991161237587054E-12
peri -8.331849842450816E-14 3.103371470145817E-13 7.923540007443555E-10 -1.639925954793268E-9 1.80789376078624E-9 -1.07061042619603E-11
i -1.63365070735473E-15 4.415792446649527E-15 -3.978093876725593E-12 9.991161237587054E-12 -1.07061042619603E-11 3.298182213879157E-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 15.39   n/a E2021B55  
diameter diameter 5.141 km 0.769 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.056   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

190438 (1999 XD193)          Discovered 1999-Dec-12 by LINEAR at Socorro
Reference: 20080917/Numbers.arcLast Updated: 2008-09-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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