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 ]  
213531 (2002 JN18)
Classification: Main-belt Asteroid          SPK-ID: 2213531
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ 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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1302813571260427 6.5296e-08  
a 2.478138902804947 1.3672e-08 au
q 2.155283603400676 1.686e-07 au
i 10.30341482458711 5.2654e-06 deg
node 79.22883046522166 3.2098e-05 deg
peri 129.4580929008807 4.2485e-05 deg
M 338.4487968272308 2.9389e-05 deg
tp 2459481.801352171141
(2021-Sep-24.30135217)
0.00011668 TDB
period 1424.908230664926
3.90
1.1792e-05
3.228e-08
d
yr
n .2526478493509774 2.0909e-09 deg/d
Q 2.800994202209218 1.5454e-08 au
  Orbit Determination Parameters
   # obs. used (total)      348  
   data-arc span      10394 days (28.46 yr)  
   first obs. used      1992-11-19  
   last obs. used      2021-05-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55858  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 03:30:10  

Additional Information
 Earth MOID = 1.16498 au 
 Jupiter MOID = 2.20371 au 
 T_jup = 3.446 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457903.5 (2017-May-30.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1310049307446499 6.5322e-08  
q 2.153156115917338 1.6865e-07 au
tp 2458058.080991065536
(2017-Oct-31.58099107)
0.00011076 TDB
node 79.24864740626518 3.2111e-05 deg
peri 129.7443004663791 4.244e-05 deg
i 10.30239370739406 5.2639e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      348  
   data-arc span      10394 days (28.46 yr)  
   first obs. used      1992-11-19  
   last obs. used      2021-05-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55858  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 03:30:10  

Additional Information
 Jupiter MOID = 2.20371 au 
 T_jup = 3.446 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.267012898510586E-15 -1.099766964577144E-14 -2.991399148040638E-12 5.563749359362304E-14 -5.335955701002643E-13 -9.728532155519946E-15
q -1.099766964577144E-14 2.844251922609603E-14 7.972416543015907E-12 -1.464100041683516E-13 1.442072232794256E-12 2.599340773945401E-14
tp -2.991399148040638E-12 7.972416543015907E-12 1.226727137710166E-8 -1.280091206159487E-10 3.087333845903411E-9 3.350971779115165E-11
node 5.563749359362304E-14 -1.464100041683516E-13 -1.280091206159487E-10 1.031129855405133E-9 -1.043584285430325E-9 5.100934629230625E-11
peri -5.335955701002643E-13 1.442072232794256E-12 3.087333845903411E-9 -1.043584285430325E-9 1.801138525661766E-9 -4.234111368723558E-11
i -9.728532155519946E-15 2.599340773945401E-14 3.350971779115165E-11 5.100934629230625E-11 -4.234111368723558E-11 2.770916128227005E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.50   n/a MPCxxxxx  
diameter diameter 2.112 km 0.506 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.131   0.078 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

213531 (2002 JN18)          Discovered 2002-May-07 by NEAT at Palomar
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jul-25 05:01 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin