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187212 (2005 SY105)
Classification: Main-belt Asteroid          SPK-ID: 2187212
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1713007537848167 3.8481e-08  
a 2.650336678390145 1.4751e-08 au
q 2.196332007598366 1.0374e-07 au
i 8.792779926032084 5.0122e-06 deg
node 192.1224853303589 2.4377e-05 deg
peri 147.8551406099087 2.8683e-05 deg
M 220.2851076994029 1.7458e-05 deg
tp 2459812.131996502176
(2022-Aug-20.63199650)
7.8767e-05 TDB
period 1575.977443170833
4.31
1.3157e-05
3.602e-08
d
yr
n .2284296653863825 1.907e-09 deg/d
Q 3.104341349181925 1.7277e-08 au
  Orbit Determination Parameters
   # obs. used (total)      442  
   data-arc span      7081 days (19.39 yr)  
   first obs. used      2001-12-11  
   last obs. used      2021-05-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53509  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:14:48  

Additional Information
 Earth MOID = 1.19238 au 
 Jupiter MOID = 2.34534 au 
 T_jup = 3.353 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457875.5 (2017-May-02.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1704766258689757 3.8469e-08  
q 2.199248070174801 1.0354e-07 au
tp 2458235.178845203196
(2018-Apr-26.67884520)
7.367e-05 TDB
node 192.1464089899266 2.4376e-05 deg
peri 147.698685498237 2.8717e-05 deg
i 8.791497770709622 5.0118e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      442  
   data-arc span      7081 days (19.39 yr)  
   first obs. used      2001-12-11  
   last obs. used      2021-05-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53509  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:14:48  

Additional Information
 Jupiter MOID = 2.34534 au 
 T_jup = 3.353 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.479891247865254E-15 -3.955245273693095E-15 1.083221958500517E-12 1.109132237997439E-14 2.156736385687329E-13 1.195231016086428E-15
q -3.955245273693095E-15 1.072005715114381E-14 -2.55309934076268E-12 -3.012140795746052E-14 -5.138298512209127E-13 -3.257984697221707E-15
tp 1.083221958500517E-12 -2.55309934076268E-12 5.4272453770247E-9 1.17991684326668E-11 1.12997430937331E-9 -9.439194760177821E-13
node 1.109132237997439E-14 -3.012140795746052E-14 1.17991684326668E-11 5.941921929169317E-10 -5.845491193689424E-10 2.374122976461557E-11
peri 2.156736385687329E-13 -5.138298512209127E-13 1.12997430937331E-9 -5.845491193689424E-10 8.246701339808699E-10 -2.364312585168542E-11
i 1.195231016086428E-15 -3.257984697221707E-15 -9.439194760177821E-13 2.374122976461557E-11 -2.364312585168542E-11 2.51180862340383E-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 16.22   n/a E2021B55  

187212 (2005 SY105)          Discovered 2005-Sep-25 by Spacewatch at Kitt Peak
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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