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 CH1)
Classification: Aten [NEO]          SPK-ID: 54110070
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5333120535661602 0.0017416  
a .7506066326269042 0.00012812 au
q .3502990679602696 0.0012476 au
i 30.22256226393318 0.26663 deg
node 134.8091145698083 0.0056057 deg
peri 202.6417574238816 0.04383 deg
M 45.27622877996011 0.27343 deg
tp 2459170.626592137535
(2020-Nov-17.12659214)
0.17276 TDB
period 237.5292094832633
0.65
0.060816
0.0001665
d
yr
n 1.515603073757404 0.00038805 deg/d
Q 1.150914197293539 0.00019645 au
  Orbit Determination Parameters
   # obs. used (total)      19  
   data-arc span      3 days  
   first obs. used      2021-02-05  
   last obs. used      2021-02-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .25362  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-08 05:24:23  

Additional Information
 Earth MOID = .0540907 au 
 Jupiter MOID = 4.23461 au 
 T_jup = 7.487 
[ 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 24.58   .26811 E2021C87 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-Apr-15 12:21 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin