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 ]  
C/2017 O1 (ASASSN)
Classification: Comet          SPK-ID: 1003526
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

[ 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 2458039.5 (2017-Oct-13.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .996424164854152 2.3344e-06  
a 419.1151688181802 0.27375 au
q 1.498686750818078 5.2576e-07 au
i 39.84840211510686 2.1235e-05 deg
node 25.80948106671725 1.511e-05 deg
peri 20.90786141618871 2.4423e-05 deg
M 359.9997949365329 2.0292e-07 deg
tp 2458041.285189365776
(2017-Oct-14.78518937)
3.8353e-05 TDB
period 3133996.418606073
8580.41
3070.5
8.407
d
yr
n .000114869308038367 1.1254e-07 deg/d
Q 836.7316508855422 0.54652 au
  Orbit Determination Parameters
   # obs. used (total)      2871  
   data-arc span      508 days (1.39 yr)  
   first obs. used      2017-07-19  
   last obs. used      2018-12-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   norm. resid. RMS      .45028  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-06 07:15:10  

Additional Information
 Earth MOID = .534776 au 
 Jupiter MOID = 2.2744 au 
 T_jup = 1.177 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 12.5   1. 18 2 parameter fit from 353 observations, autocmod 2.8
comet total magnitude slope K1 8.   n/a 18 autocmod 2.8

Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2017.8   C/2017 O1       
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Sep-26 19:24 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin