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 GW2)
Classification: Apollo [NEO]          SPK-ID: 54135139
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 2459311.5 (2021-Apr-07.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5962206029544483 0.0019106  
a 2.137743824319322 0.009775 au
q .8631769124215075 0.0001375 au
i 23.4639980964572 0.049541 deg
node 20.12597244815667 0.0034725 deg
peri 240.738807439907 0.024202 deg
M 344.2169294294904 0.12292 deg
tp 2459361.551939990878
(2021-May-27.05193999)
0.046505 TDB
period 1141.647204592986
3.13
7.8304
0.02144
d
yr
n .3153338426719532 0.0021628 deg/d
Q 3.412310736217137 0.015603 au
  Orbit Determination Parameters
   # obs. used (total)      47  
   data-arc span      11 days  
   first obs. used      2021-04-05  
   last obs. used      2021-04-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      8  
   norm. resid. RMS      .30941  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-17 06:23:31  

Additional Information
 Earth MOID = .0450477 au 
 Jupiter MOID = 2.16478 au 
 T_jup = 3.378 
[ 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 24.713   .37136 5 autocmod 2.9c

[ 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-19 04:10 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin