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173783 (2001 SL77)
Classification: Main-belt Asteroid          SPK-ID: 2173783
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1537780521421816 5.6518e-08  
a 3.090959688963591 3.2361e-08 au
q 2.615637928744766 1.805e-07 au
i 4.024880611625729 5.2268e-06 deg
node 251.7919078807086 0.00011779 deg
peri 157.845443818572 0.00012111 deg
M 166.6500867489262 3.0051e-05 deg
tp 2458281.656638472305
(2018-Jun-12.15663847)
0.0001579 TDB
period 1984.899117684388
5.43
3.1171e-05
8.534e-08
d
yr
n .1813694191269435 2.8483e-09 deg/d
Q 3.566281449182416 3.7337e-08 au
  Orbit Determination Parameters
   # obs. used (total)      265  
   data-arc span      6817 days (18.66 yr)  
   first obs. used      2001-09-17  
   last obs. used      2020-05-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5748  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 10:17:33  

Additional Information
 Earth MOID = 1.62585 au 
 Jupiter MOID = 1.81023 au 
 T_jup = 3.203 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457041.5 (2015-Jan-19.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1536917067396818 5.5987e-08  
q 2.616303745389949 1.7849e-07 au
tp 2456298.877029748185
(2013-Jan-06.37702975)
0.00014568 TDB
node 251.8201618467213 0.00011778 deg
peri 158.4584989804461 0.00012113 deg
i 4.024829102915866 5.2266e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      265  
   data-arc span      6817 days (18.66 yr)  
   first obs. used      2001-09-17  
   last obs. used      2020-05-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5748  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 10:17:33  

Additional Information
 Jupiter MOID = 1.81023 au 
 T_jup = 3.203 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.134562241660954E-15 -9.878810336783709E-15 -4.1940243628731E-12 -7.404113604078726E-15 -8.610195723251422E-13 -1.381135359074711E-15
q -9.878810336783709E-15 3.18581023805987E-14 1.423344771137803E-11 1.973206660630609E-14 2.963016304253475E-12 5.209988284492722E-15
tp -4.1940243628731E-12 1.423344771137803E-11 2.122392858248127E-8 6.371650486529578E-11 4.23477766870241E-9 2.9880893824414E-12
node -7.404113604078726E-15 1.973206660630609E-14 6.371650486529578E-11 1.387198897497702E-8 -1.382536681744827E-8 -1.376369016672649E-10
peri -8.610195723251422E-13 2.963016304253475E-12 4.23477766870241E-9 -1.382536681744827E-8 1.46716004290977E-8 1.379857399569812E-10
i -1.381135359074711E-15 5.209988284492722E-15 2.9880893824414E-12 -1.376369016672649E-10 1.379857399569812E-10 2.731766695104061E-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 15.65   n/a E2021B55  

173783 (2001 SL77)          Discovered 2001-Sep-17 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

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