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

Significant website upgrade scheduled for September 27. More details available here.

JPL Small-Body Database Browser
Search: [ help ]  
(2018 JJ)
Classification: Apollo [NEO]          SPK-ID: 3819743
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 2458244.5 (2018-May-06.0) TDB
Reference: JPL 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5572275290269111 0.0017942  
a 1.949020258306741 0.0071271 au
q .8629725157470837 0.00034147 au
i 5.372542015867325 0.011652 deg
node 66.49595018706496 0.010342 deg
peri 213.7353700538047 0.0053608 deg
M 344.9280747856903 0.093114 deg
tp 2458286.109182809980
(2018-Jun-16.60918281)
0.028841 TDB
period 993.8548392856272
2.72
5.4514
0.01493
d
yr
n .3622259365952923 0.0019869 deg/d
Q 3.035068000866398 0.011099 au
  Orbit Determination Parameters
   # obs. used (total)      60  
   data-arc span      2 days  
   first obs. used      2018-05-05  
   last obs. used      2018-05-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      8  
   norm. resid. RMS      .4021  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 20:28:32  

Additional Information
 Earth MOID = .0307618 au 
 Jupiter MOID = 2.14172 au 
 T_jup = 3.682 
[ 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 24.2   n/a MPO448883  

[ 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-Sep-22 09:56 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin