Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 2454382.5 (2007-Oct-09.0) TDB
Reference: JPL 122 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5960872429177333 3.0086e-08  
a 3.050125964918546 1.4089e-08 au
q 1.231984787938459 9.2009e-08 au
i 27.82664613395114 6.8028e-06 deg
node 31.26135952828848 7.8218e-06 deg
peri 356.3730265286378 1.2576e-05 deg
M 196.8543965676426 2.8984e-06 deg
tp 2455264.255066330837
(2010-Mar-08.75506633)
2.02e-05 TDB
period 1945.696465002892
5.33
1.3481e-05
3.691e-08
d
yr
n .1850237210558251 1.2819e-09 deg/d
Q 4.868267141898633 2.2487e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2194  
   data-arc span      11165 days (30.57 yr)  
   first obs. used      1990-03-23  
   last obs. used      2020-10-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47987  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-18 17:46:45  

Additional Information
 Earth MOID = .237703 au 
 Jupiter MOID = .58314 au 
 T_jup = 2.793 
[ hide covariance matrix ]
Orbit Covariance (6×6)
  e q tp node peri i
e 9.051690970645871E-16 -2.762890678507311E-15 -1.763372993666369E-13 1.037913684865528E-13 -2.001729567016979E-13 -6.07380968871204E-14
q -2.762890678507311E-15 8.465680792730352E-15 6.30986898997199E-13 -3.144240038786559E-13 6.257798201494977E-13 1.878891660065945E-13
tp -1.763372993666369E-13 6.30986898997199E-13 4.080424490947273E-10 -1.605725551020963E-11 1.698503765458294E-10 1.685337770655081E-11
node 1.037913684865528E-13 -3.144240038786559E-13 -1.605725551020963E-11 6.118093112472257E-11 -5.848902684294814E-11 -6.41772476826296E-12
peri -2.001729567016979E-13 6.257798201494977E-13 1.698503765458294E-10 -5.848902684294814E-11 1.581670003236443E-10 9.135038239931786E-12
i -6.07380968871204E-14 1.878891660065945E-13 1.685337770655081E-11 -6.41772476826296E-12 9.135038239931786E-12 4.62785840086214E-11

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 15.1   0.6 122 2 parameter fit from 690 observations, autocmod 2.8
comet total magnitude slope K1 4.5   n/a 122 autocmod 2.8
rotation period rot_per 32.853 h n/a LCDB (Rev. 2019-August); 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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Oct-24 10:08 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin