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162P/Siding Spring
Classification: Jupiter-family Comet [NEO]          SPK-ID: 1000525
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2454968.5 (2009-May-17.0) TDB
Reference: JPL 126 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5960656231487337 2.9329e-08  
a 3.051941801871136 6.757e-09 au
q 1.232784209925148 8.9546e-08 au
i 27.81695758145402 6.6643e-06 deg
node 31.25347630874813 7.567e-06 deg
peri 356.3200314869923 1.1044e-05 deg
M 305.3833183616944 1.6775e-06 deg
tp 2455263.951097594027
(2010-Mar-08.45109759)
9.296e-06 TDB
period 1947.434226015885
5.33
6.4674e-06
1.771e-08
d
yr
n .1848586181708935 6.1392e-10 deg/d
Q 4.871099393817123 1.0785e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2643  
   data-arc span      11270 days (30.86 yr)  
   first obs. used      1990-03-23  
   last obs. used      2021-01-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46663  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jan-30 21:13:01  

Additional Information
 Earth MOID = .238488 au 
 Jupiter MOID = .585222 au 
 T_jup = 2.793 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 15.3   0.7 126 2 parameter fit from 1071 observations, autocmod 2.8
comet total magnitude slope K1 4.5   n/a 126 autocmod 2.8
rotation period rot_per 32.853 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Kokotankekova, R.; Snodgrass, C.; Lacerda, P.; Green S.F.; et al. (2017) Mon. Not. Royal Ast. Soc. 471, 2974-3007.]

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2004.9   162P/2004 TU12       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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