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/1969 Y1 (Bennett)
Classification: Comet          SPK-ID: 1001139
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

[ show orbit diagram ]
Orbital Elements at Epoch 2440688.5 (1970-Apr-12.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9962932804452709 3.3724e-06  
a 145.0393369032937 0.13182 au
q .5376201463043839 7.4889e-07 au
i 90.03981103941801 5.7144e-05 deg
node 224.6576831659236 0.00015773 deg
peri 354.1490886138758 7.6044e-05 deg
M .01295223333442256 1.7664e-05 deg
tp 2440665.545423002465
(1970-Mar-20.04542300)
5.1492e-05 TDB
period 638009.4849859349
1746.77
869.77
2.381
d
yr
n .0005642549342474686 7.6923e-07 deg/d
Q 289.5410536602831 0.26315 au
  Orbit Determination Parameters
   # obs. used (total)      529  
   data-arc span      301 days  
   first obs. used      1969-12-30  
   last obs. used      1970-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   norm. resid. RMS      .76872  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 11:11:00  

Additional Information
 Earth MOID = .468979 au 
 Jupiter MOID = 2.66814 au 
 T_jup = 0.035 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 4.7   0.8 1 2 parameter fit from 20 observations, autocmod 2.8
comet total magnitude slope K1 11.5   n/a 1 autocmod 2.8

Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 1970.2   C/1969 Y1       
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Dec-02 10:51 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin