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 ]

[ 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.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2454334.5 (2007-Aug-22.0) TDB
Reference: JPL 121 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5961126557627628 3.0467e-08  
a 3.050056293722636 1.5976e-08 au
q 1.231879136245706 9.2732e-08 au
i 27.82779877967971 6.9105e-06 deg
node 31.26137433860853 7.8568e-06 deg
peri 356.3771974573759 1.2704e-05 deg
M 187.9606067176029 3.0384e-06 deg
tp 2455264.291584182464
(2010-Mar-08.79158418)
2.2092e-05 TDB
period 1945.62979977642
5.33
1.5287e-05
4.185e-08
d
yr
n .1850300607244857 1.4538e-09 deg/d
Q 4.868233451199567 2.55e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2138  
   data-arc span      11135 days (30.49 yr)  
   first obs. used      1990-03-23  
   last obs. used      2020-09-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48479  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Sep-24 20:19:22  

Additional Information
 Earth MOID = .238093 au 
 Jupiter MOID = .582918 au 
 T_jup = 2.793 
[ hide covariance matrix ]
Orbit Covariance (6×6)
  e q tp node peri i
e 9.282539814400117E-16 -2.818461853458812E-15 -1.342501241519784E-13 1.068477296125627E-13 -1.945621997586328E-13 -6.271849807522386E-14
q -2.818461853458812E-15 8.599170280036458E-15 5.294949562165495E-13 -3.221922579162578E-13 6.126581896876842E-13 1.919662573501026E-13
tp -1.342501241519784E-13 5.294949562165495E-13 4.880491961117133E-10 -1.183387573914948E-11 1.830246459925739E-10 1.036321956910505E-11
node 1.068477296125627E-13 -3.221922579162578E-13 -1.183387573914948E-11 6.173004258720034E-11 -5.834517976805935E-11 -6.208025031715055E-12
peri -1.945621997586328E-13 6.126581896876842E-13 1.830246459925739E-10 -5.834517976805935E-11 1.613941568551868E-10 7.12061742405596E-12
i -6.271849807522386E-14 1.919662573501026E-13 1.036321956910505E-11 -6.208025031715055E-12 7.12061742405596E-12 4.775501182733734E-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   0.6 121 2 parameter fit from 665 observations, autocmod 2.8
comet total magnitude slope K1 4.5   n/a 121 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-Sep-27 04:34 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin