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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 ]

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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 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 
[ show covariance matrix ]

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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