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91768 (1999 TQ196)
Classification: Main-belt Asteroid          SPK-ID: 2091768
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1138844760080248 3.8961e-08  
a 2.997959184185957 2.2227e-08 au
q 2.656538173401494 1.2323e-07 au
i 9.942774152035977 7.8643e-06 deg
node 1.9974157264631 2.1918e-05 deg
peri 62.44297513472788 3.9408e-05 deg
M 330.0018962405787 3.3305e-05 deg
tp 2459158.489528433905
(2020-Nov-04.98952843)
0.00017589 TDB
period 1895.994183243761
5.19
2.1086e-05
5.773e-08
d
yr
n .1898740002377508 2.1116e-09 deg/d
Q 3.33938019497042 2.4759e-08 au
  Orbit Determination Parameters
   # obs. used (total)      675  
   data-arc span      15344 days (42.01 yr)  
   first obs. used      1978-10-27  
   last obs. used      2020-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5765  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:38:35  

Additional Information
 Earth MOID = 1.68669 au 
 Jupiter MOID = 2.03404 au 
 T_jup = 3.221 
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Orbital Elements at Epoch 2457251.5 (2015-Aug-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1108384892164705 3.9179e-08  
q 2.666827587504029 1.2382e-07 au
tp 2457250.462653347624
(2015-Aug-15.96265335)
0.0001779 TDB
node 2.169986093137103 2.1823e-05 deg
peri 60.54817300588788 4.0458e-05 deg
i 9.968476391969217 7.8786e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      675  
   data-arc span      15344 days (42.01 yr)  
   first obs. used      1978-10-27  
   last obs. used      2020-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5765  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:38:35  

Additional Information
 Jupiter MOID = 2.03404 au 
 T_jup = 3.221 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.535018974088394E-15 -4.791624757077475E-15 -3.081333325481855E-12 -2.8159457745602E-17 -5.519043424430122E-13 -1.111130778909163E-15
q -4.791624757077475E-15 1.533030826087407E-14 9.922592412575317E-12 -1.091575275282356E-15 1.777396528313059E-12 5.31454472390311E-15
tp -3.081333325481855E-12 9.922592412575317E-12 3.164777694649618E-8 -7.634552979446858E-12 6.068078433883914E-9 5.064621072996019E-12
node -2.8159457745602E-17 -1.091575275282356E-15 -7.634552979446858E-12 4.762530625966015E-10 -4.699265993172279E-10 -4.25023829831402E-11
peri -5.519043424430122E-13 1.777396528313059E-12 6.068078433883914E-9 -4.699265993172279E-10 1.63682916107088E-9 4.275616394938128E-11
i -1.111130778909163E-15 5.31454472390311E-15 5.064621072996019E-12 -4.25023829831402E-11 4.275616394938128E-11 6.207201633134946E-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 14.6   n/a MPO502692  

91768 (1999 TQ196)          Discovered 1999-Oct-12 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

Alternate Designations
 1999 TQ196 = 1978 UC5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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