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193868 (2001 QC149)
Classification: Main-belt Asteroid          SPK-ID: 2193868
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.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2150790883483165 7.7383e-08  
a 2.256323673023761 7.7335e-09 au
q 1.771035634411086 1.7409e-07 au
i 5.917067702787273 8.5461e-06 deg
node 343.5070808966008 4.5993e-05 deg
peri 341.7113141721865 4.7695e-05 deg
M 76.34267062543799 1.09e-05 deg
tp 2458337.978199332710
(2018-Aug-07.47819933)
3.7245e-05 TDB
period 1237.942653380711
3.39
6.3645e-06
1.743e-08
d
yr
n .2908050700223246 1.4951e-09 deg/d
Q 2.741611711636437 9.3968e-09 au
  Orbit Determination Parameters
   # obs. used (total)      310  
   data-arc span      6318 days (17.30 yr)  
   first obs. used      2001-07-27  
   last obs. used      2018-11-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61108  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 14:59:01  

Additional Information
 Earth MOID = .759645 au 
 Jupiter MOID = 2.59778 au 
 T_jup = 3.585 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456923.5 (2014-Sep-23.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2161885256741962 7.7549e-08  
q 1.768057502540469 1.7462e-07 au
tp 2457100.150161170224
(2015-Mar-18.65016117)
3.6383e-05 TDB
node 343.5516112983263 4.593e-05 deg
peri 341.6590599737901 4.7609e-05 deg
i 5.923315746219481 8.5525e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      310  
   data-arc span      6318 days (17.30 yr)  
   first obs. used      2001-07-27  
   last obs. used      2018-11-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61108  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 14:59:01  

Additional Information
 Jupiter MOID = 2.59778 au 
 T_jup = 3.585 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.013838372718697E-15 -1.35339010115783E-14 6.113386232608176E-13 -6.897036271778478E-14 1.86501429050494E-13 1.628332882805767E-15
q -1.35339010115783E-14 3.049382301973971E-14 -1.384413387810469E-12 1.549843107383869E-13 -4.235695450953242E-13 -3.353029681736949E-15
tp 6.113386232608176E-13 -1.384413387810469E-12 1.323732653709419E-9 -9.684677534832822E-12 4.672404245309687E-10 -1.958736757081659E-12
node -6.897036271778478E-14 1.549843107383869E-13 -9.684677534832822E-12 2.109576266846764E-9 -2.099223554926117E-9 -4.67944137987717E-11
peri 1.86501429050494E-13 -4.235695450953242E-13 4.672404245309687E-10 -2.099223554926117E-9 2.266574561431444E-9 4.583365884136702E-11
i 1.628332882805767E-15 -3.353029681736949E-15 -1.958736757081659E-12 -4.67944137987717E-11 4.583365884136702E-11 7.314587242385875E-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 17.1   n/a MPO360008  

193868 (2001 QC149)          Discovered 2001-Aug-21 by NEAT at Haleakala
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17

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