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/2021 C3 (Catalina)
Classification: Comet          SPK-ID: 1003766
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459287.5 (2021-Mar-14.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9640605211944494 7.8794e-05  
a 63.34271375185569 0.13932 au
q 2.276504118370876 1.6013e-05 au
i 122.1614741210181 0.00053421 deg
node 181.9197982232179 0.00013729 deg
peri 357.1519706006669 0.00067447 deg
M .05778329450411328 0.00019357 deg
tp 2459257.944165638468
(2021-Feb-12.44416564)
0.0017281 TDB
period 184138.0015013528
504.14
607.49
1.663
d
yr
n .001955055431604406 6.4499e-06 deg/d
Q 124.4089233853405 0.27362 au
  Orbit Determination Parameters
   # obs. used (total)      361  
   data-arc span      134 days  
   first obs. used      2021-01-16  
   last obs. used      2021-05-30  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      4  
   norm. resid. RMS      .53609  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-31 22:42:59  

Additional Information
 Earth MOID = 1.28038 au 
 Jupiter MOID = 3.17418 au 
 T_jup = -0.905 
[ hide covariance matrix ]
Orbit Covariance (6×6)
  e q tp node peri i
e 6.208556670850998E-9 1.252033252229932E-9 1.180336865592675E-7 1.068752061644547E-8 4.543069873696883E-8 4.168136619546298E-8
q 1.252033252229932E-9 2.564289730883774E-10 2.528236920030963E-8 2.179612316720712E-9 9.773976166783473E-9 8.465276329506395E-9
tp 1.180336865592675E-7 2.528236920030963E-8 2.986230809259931E-6 2.116736258749469E-7 1.164803800690189E-6 8.092612384376473E-7
node 1.068752061644547E-8 2.179612316720712E-9 2.116736258749469E-7 1.884885592626901E-8 8.189399531327001E-8 7.297000762449971E-8
peri 4.543069873696883E-8 9.773976166783473E-9 1.164803800690189E-6 8.189399531327001E-8 4.549095417139464E-7 3.125903107542992E-7
i 4.168136619546298E-8 8.465276329506395E-9 8.092612384376473E-7 7.297000762449971E-8 3.125903107542992E-7 2.853765185496443E-7

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 16.1   0.6 6 2 parameter fit from 337 observations, autocmod 2.9c
comet total magnitude slope K1 4.5   n/a 6 autocmod 2.9c

Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2021.1   C/2021 C3       
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jun-17 02:34 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin