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 CE9)
Classification: Amor [NEO]          SPK-ID: 54121909
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 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4560886400549147 0.00053758  
a 1.927815321414531 0.0020135 au
q 1.048560653193549 5.8802e-05 au
i 8.6486293516163 0.0078015 deg
node 143.422827482155 0.0027311 deg
peri 24.3838761030087 0.0035474 deg
M 329.608990515518 0.047073 deg
tp 2459283.035197238232
(2021-Mar-09.53519724)
0.0014895 TDB
period 977.6796332130734
2.68
1.5317
0.004194
d
yr
n .3682187781869671 0.00057687 deg/d
Q 2.807069989635512 0.0029318 au
  Orbit Determination Parameters
   # obs. used (total)      21  
   data-arc span      22 days  
   first obs. used      2021-02-13  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .56054  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:25:33  

Additional Information
 Earth MOID = .0735012 au 
 Jupiter MOID = 2.17283 au 
 T_jup = 3.770 
[ 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 25.14   .27849 E2021D54 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-18 06:47 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin