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103198 (1999 XT248)
Classification: Main-belt Asteroid          SPK-ID: 2103198
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1501343772721752 3.5371e-08  
a 2.330498265519294 9.1526e-09 au
q 1.98061035969167 8.416e-08 au
i 6.258221184097773 4.4762e-06 deg
node 224.8219312883733 3.4286e-05 deg
peri 259.0475606249371 3.769e-05 deg
M 291.3238134713904 1.4931e-05 deg
tp 2459448.399284733712
(2021-Aug-21.89928473)
5.414e-05 TDB
period 1299.48599383803
3.56
7.6552e-06
2.096e-08
d
yr
n .2770326126692144 1.632e-09 deg/d
Q 2.680386171346917 1.0527e-08 au
  Orbit Determination Parameters
   # obs. used (total)      735  
   data-arc span      7707 days (21.10 yr)  
   first obs. used      1999-12-06  
   last obs. used      2021-01-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50594  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:45:34  

Additional Information
 Earth MOID = 1.00736 au 
 Jupiter MOID = 2.42155 au 
 T_jup = 3.548 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457581.5 (2016-Jul-12.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1490166574056552 3.5182e-08  
q 1.983937580134139 8.3624e-08 au
tp 2458146.952549410411
(2018-Jan-28.45254941)
5.4162e-05 TDB
node 224.8758055283716 3.4243e-05 deg
peri 258.6651035464849 3.7751e-05 deg
i 6.260536824531715 4.479e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      735  
   data-arc span      7707 days (21.10 yr)  
   first obs. used      1999-12-06  
   last obs. used      2021-01-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50594  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:45:34  

Additional Information
 Jupiter MOID = 2.42155 au 
 T_jup = 3.548 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.237807687934428E-15 -2.929611407806275E-15 2.822403933568519E-13 1.486467239826525E-14 1.184526512439844E-13 -3.570110136314708E-15
q -2.929611407806275E-15 6.993033421088175E-15 -6.388752006201055E-13 -3.468633350279206E-14 -2.806334148791482E-13 8.652051579497637E-15
tp 2.822403933568519E-13 -6.388752006201055E-13 2.933493631663616E-9 8.429438492437048E-12 8.682397064029646E-10 1.084200664481561E-12
node 1.486467239826525E-14 -3.468633350279206E-14 8.429438492437048E-12 1.172572765709512E-9 -1.162031314616757E-9 -2.543127157044393E-11
peri 1.184526512439844E-13 -2.806334148791482E-13 8.682397064029646E-10 -1.162031314616757E-9 1.425157788917285E-9 2.548259127671607E-11
i -3.570110136314708E-15 8.652051579497637E-15 1.084200664481561E-12 -2.543127157044393E-11 2.548259127671607E-11 2.006126087270912E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.22   n/a E2021B55  

103198 (1999 XT248)          Discovered 1999-Dec-06 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1999 XT248 = 2002 TN100 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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