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 ]  
(2021 CO4)
Classification: Apollo [NEO]          SPK-ID: 54111271
[ 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.


Orbital Elements at Epoch 2459255.5 (2021-Feb-10.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .7048384827003108 0.0019618  
a 2.342434193325059 0.013811 au
q .6913964306764979 0.00051889 au
i 2.658470529974434 0.0049742 deg
node 212.2681308650095 0.074153 deg
peri 12.16769767855498 0.069279 deg
M 345.6953391014319 0.13914 deg
tp 2459307.532487861899
(2021-Apr-03.03248786)		 0.045958 TDB
period 1309.481976756169
3.59		 11.581
0.03171		 d
yr
n .2749178731667519 0.0024313 deg/d
Q 3.99347195597362 0.023545 au
   Orbit Determination Parameters
   # obs. used (total)      40  
   data-arc span      11 days  
   first obs. used      2021-02-07  
   last obs. used      2021-02-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      8  
   norm. resid. RMS      .38087  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:25:10  

Additional Information
 Earth MOID = .0404119 au 
 Jupiter MOID = .994154 au 
 T_jup = 3.172 
[ show covariance matrix ]

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 23.9   .33347 MPO606160 autocmod 2.8

[ show close-approach data ]
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jun-15 17:54 UT
(server date/time)   		NASA Home Page
Site Manager:   Ryan S. Park
Webmaster:   Alan B. Chamberlin