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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 
[ show covariance matrix ]

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

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2183-Oct-10 13:59 00:02 Juno 0.0210941206046865 0.0210854562751457 0.0211028262653169 5.28493887504632 5.28493876591621 2518667.082339108 2.3122944281671 1556.95537474271 77.2801595534727 -74.1063592324555 39253.2585961117 T 21 CATAB v2.0f-lin.ifort 2021-Apr-13 15:45:37 2021-Apr-13 15:45

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