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 B2 (PANSTARRS)
Classification: Comet          SPK-ID: 1003761
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | 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.


Orbital Elements at Epoch 2459252.5 (2021-Feb-07.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9924542217998219 0.00017836  
a 333.0437361033692 7.8798 au
q 2.513074163594671 7.515e-05 au
i 38.09413949682613 0.00058272 deg
node 120.5557246304746 0.0015532 deg
peri 334.9742525080366 0.0021391 deg
M 359.986008587853 0.00049716 deg
tp 2459338.779849866492
(2021-May-04.27984987)
0.0066202 TDB
period 2219986.490677372
6077.99
78787
215.7
d
yr
n .0001621631489704044 5.7552e-06 deg/d
Q 663.5743980431438 15.7 au
  Orbit Determination Parameters
   # obs. used (total)      75  
   data-arc span      88 days  
   first obs. used      2020-12-24  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   norm. resid. RMS      .47057  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:34:17  

Additional Information
 Earth MOID = 1.56835 au 
 Jupiter MOID = 2.50148 au 
 T_jup = 1.560 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 4.3   0.3 4 2 parameter fit from 74 observations, autocmod 2.9c
comet total magnitude slope K1 31.   n/a 4 autocmod 2.9c

Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2021.3   C/2021 B2       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-23 00:42 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin