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187196 (2005 SG78)
Classification: Main-belt Asteroid          SPK-ID: 2187196
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ hide orbit diagram ]

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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04918942003646846 4.9413e-08  
a 2.683277424396835 1.773e-08 au
q 2.551288564093806 1.3887e-07 au
i 2.458472855849079 6.633e-06 deg
node 39.27809058562228 0.0001327 deg
peri 257.8315618944015 0.0001527 deg
M 231.7459400086526 7.6344e-05 deg
tp 2459772.459678274553
(2022-Jul-11.95967827)
0.00034058 TDB
period 1605.450027802085
4.40
1.5912e-05
4.356e-08
d
yr
n .2242361915760481 2.2224e-09 deg/d
Q 2.815266284699864 1.8602e-08 au
  Orbit Determination Parameters
   # obs. used (total)      215  
   data-arc span      9949 days (27.24 yr)  
   first obs. used      1994-01-17  
   last obs. used      2021-04-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55132  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:14:47  

Additional Information
 Earth MOID = 1.53486 au 
 Jupiter MOID = 2.27175 au 
 T_jup = 3.372 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456999.5 (2014-Dec-08.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05085970438562981 4.9268e-08  
q 2.545854581403441 1.3867e-07 au
tp 2456555.614368454893
(2013-Sep-20.11436846)
0.00033037 TDB
node 39.31216965226103 0.00013273 deg
peri 256.4897665988278 0.00015161 deg
i 2.459364038022043 6.6311e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      215  
   data-arc span      9949 days (27.24 yr)  
   first obs. used      1994-01-17  
   last obs. used      2021-04-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55132  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:14:47  

Additional Information
 Jupiter MOID = 2.27175 au 
 T_jup = 3.372 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.427301068187961E-15 -6.787292663985336E-15 4.57381763221511E-12 -1.667580177589424E-14 1.011309481861055E-12 1.50361958629467E-15
q -6.787292663985336E-15 1.923017731810472E-14 -1.263369013848352E-11 4.661331465536579E-14 -2.778819480422571E-12 -4.065323080964942E-15
tp 4.57381763221511E-12 -1.263369013848352E-11 1.091421554695595E-7 -1.487973886493639E-10 2.423557695900591E-8 4.812827635051823E-12
node -1.667580177589424E-14 4.661331465536579E-14 -1.487973886493639E-10 1.761799414289555E-8 -1.763425981066141E-8 -2.926596355859637E-10
peri 1.011309481861055E-12 -2.778819480422571E-12 2.423557695900591E-8 -1.763425981066141E-8 2.298427200611295E-8 2.934488465520145E-10
i 1.50361958629467E-15 -4.065323080964942E-15 4.812827635051823E-12 -2.926596355859637E-10 2.934488465520145E-10 4.397107765025679E-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 17.07   n/a MPCxxxxx  

187196 (2005 SG78)          Discovered 2005-Sep-24 by Spacewatch at Kitt Peak
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

Alternate Designations
 2005 SG78 = 1999 FM73 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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