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(2009 SK104)
Classification: Amor [NEO]          SPK-ID: 3468525
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | 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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 46 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6172065957481195 1.3674e-08  
a 2.756658798497409 3.9257e-08 au
q 1.055230805837722 3.4577e-08 au
i 4.154033265012047 3.7538e-06 deg
node 328.0465054133634 4.8305e-05 deg
peri 286.1749364917962 5.7383e-05 deg
M 156.1967013299424 3.8113e-06 deg
tp 2458275.158866089331
(2018-Jun-05.65886609)
1.8305e-05 TDB
period 1671.756227785232
4.58
3.5711e-05
9.777e-08
d
yr
n .2153424010131749 4.6e-09 deg/d
Q 4.458086791157097 6.3487e-08 au
  Orbit Determination Parameters
   # obs. used (total)      240  
   data-arc span      3245 days (8.88 yr)  
   first obs. used      2009-09-25  
   last obs. used      2018-08-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44023  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Aug-15 06:55:30  

Additional Information
 Earth MOID = .0813047 au 
 Jupiter MOID = .725809 au 
 T_jup = 3.030 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457894.5 (2017-May-21.0) TDB
Reference: JPL 46 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6173715025141914 1.3678e-08  
q 1.054205302237474 3.4572e-08 au
tp 2458275.184407687461
(2018-Jun-05.68440769)
1.8233e-05 TDB
node 328.2235618732961 4.8424e-05 deg
peri 285.9455310997751 5.7504e-05 deg
i 4.15167219715296 3.7502e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      240  
   data-arc span      3245 days (8.88 yr)  
   first obs. used      2009-09-25  
   last obs. used      2018-08-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44023  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Aug-15 06:55:30  

Additional Information
 Jupiter MOID = .725809 au 
 T_jup = 3.030 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.870801426340938E-16 -4.328398106635542E-16 -7.024158295298121E-14 6.385724354103264E-14 -1.37718306070338E-13 -4.761766686884678E-15
q -4.328398106635542E-16 1.195218224787619E-15 5.886096701550413E-14 3.540159745911869E-16 8.817607483691889E-14 8.571985539069211E-15
tp -7.024158295298121E-14 5.886096701550413E-14 3.324363724576055E-10 -4.5591840901928E-10 7.3290034169343E-10 1.359635886153007E-11
node 6.385724354103264E-14 3.540159745911869E-16 -4.5591840901928E-10 2.344835505701057E-9 -2.707347589276783E-9 -8.489178920778601E-11
peri -1.37718306070338E-13 8.817607483691889E-14 7.3290034169343E-10 -2.707347589276783E-9 3.306669430716551E-9 9.589027102889391E-11
i -4.761766686884678E-15 8.571985539069211E-15 1.359635886153007E-11 -8.489178920778601E-11 9.589027102889391E-11 1.406418646378472E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 19.4   n/a E2018P03  
rotation period rot_per 34.66 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2019) http://www.asu.cas.cz/~ppravec/neo.htm]

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