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 ]  
(2015 AR251)
Classification: Mars-crossing Asteroid          SPK-ID: 3709667
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 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5019845662389627 1.8978e-05  
a 3.080155875499264 8.2841e-05 au
q 1.533965164388373 1.8572e-05 au
i 12.78136300546202 0.0001461 deg
node 205.3902485654929 0.00078254 deg
peri 300.1276649613915 0.0016699 deg
M 19.61424494628234 0.015143 deg
tp 2459092.921232760072
(2020-Aug-31.42123276)
0.078713 TDB
period 1974.501507064875
5.41
0.079656
0.0002181
d
yr
n .1823244999874146 7.3554e-06 deg/d
Q 4.626346586610154 0.00012443 au
  Orbit Determination Parameters
   # obs. used (total)      35  
   data-arc span      85 days  
   first obs. used      2014-11-20  
   last obs. used      2015-02-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      4  
   norm. resid. RMS      .38472  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 12:24:06  

Additional Information
 Earth MOID = .590013 au 
 Jupiter MOID = .975461 au 
 T_jup = 2.987 
[ 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 17.9   n/a MPO382727  

[ 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-May-10 08:16 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin