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190979 (2001 XQ144)
Classification: Main-belt Asteroid          SPK-ID: 2190979
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1951080917881475 5.5095e-08  
a 2.422936789853714 1.6595e-08 au
q 1.950202216262056 1.2869e-07 au
i 2.23803403256092 5.6441e-06 deg
node 192.5483427526748 0.00012262 deg
peri 173.2153654429555 0.00012338 deg
M 69.16774844484279 1.6407e-05 deg
tp 2458935.825140458725
(2020-Mar-27.32514046)
6.0947e-05 TDB
period 1377.563265787692
3.77
1.4153e-05
3.875e-08
d
yr
n .2613310102996625 2.6848e-09 deg/d
Q 2.895671363445372 1.9833e-08 au
  Orbit Determination Parameters
   # obs. used (total)      335  
   data-arc span      8531 days (23.36 yr)  
   first obs. used      1997-09-01  
   last obs. used      2021-01-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5465  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:09:54  

Additional Information
 Earth MOID = .94702 au 
 Jupiter MOID = 2.5674 au 
 T_jup = 3.485 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457055.5 (2015-Feb-02.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1968062246679374 5.5298e-08  
q 1.945001146178141 1.2935e-07 au
tp 2457558.531683415266
(2016-Jun-19.03168342)
5.1978e-05 TDB
node 192.6131806755439 0.0001225 deg
peri 173.1915919254879 0.00012325 deg
i 2.239230757444908 5.6507e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      335  
   data-arc span      8531 days (23.36 yr)  
   first obs. used      1997-09-01  
   last obs. used      2021-01-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5465  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:09:54  

Additional Information
 Jupiter MOID = 2.5674 au 
 T_jup = 3.485 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.057839817656168E-15 -7.120966988856193E-15 1.057928556656964E-12 1.604520054575834E-14 1.510913839563763E-13 -4.469139581399907E-16
q -7.120966988856193E-15 1.673136146669893E-14 -2.220087060418602E-12 -3.752012558903855E-14 -3.035646813182441E-13 1.012636210017672E-15
tp 1.057928556656964E-12 -2.220087060418602E-12 2.701748148249621E-9 -2.668657451412619E-12 7.061786066565349E-10 -1.62804170778468E-12
node 1.604520054575834E-14 -3.752012558903855E-14 -2.668657451412619E-12 1.500699418555173E-8 -1.499630312194668E-8 1.549555831324628E-10
peri 1.510913839563763E-13 -3.035646813182441E-13 7.061786066565349E-10 -1.499630312194668E-8 1.518950960598833E-8 -1.552831770930962E-10
i -4.469139581399907E-16 1.012636210017672E-15 -1.62804170778468E-12 1.549555831324628E-10 -1.552831770930962E-10 3.193028319967269E-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 17.03   n/a MPCxxxxx  

190979 (2001 XQ144)          Discovered 2001-Dec-14 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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