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 ]  
175111 (2004 NR18)
Classification: Main-belt Asteroid          SPK-ID: 2175111
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .270169280279099 4.4156e-08  
a 3.078069044921559 1.9625e-08 au
q 2.246469346405728 1.4097e-07 au
i 4.278199065365113 3.7101e-06 deg
node 179.6675348906007 7.12e-05 deg
peri 69.8236413860225 7.3115e-05 deg
M 34.89131896161934 1.0214e-05 deg
tp 2459009.325109936482
(2020-Jun-08.82510994)
5.6541e-05 TDB
period 1972.495235808433
5.40
1.8865e-05
5.165e-08
d
yr
n .1825099465208355 1.7455e-09 deg/d
Q 3.90966874343739 2.4928e-08 au
  Orbit Determination Parameters
   # obs. used (total)      424  
   data-arc span      8177 days (22.39 yr)  
   first obs. used      1998-04-21  
   last obs. used      2020-09-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51635  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:04:04  

Additional Information
 Earth MOID = 1.23555 au 
 Jupiter MOID = 1.15874 au 
 T_jup = 3.167 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457988.5 (2017-Aug-23.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2690256398920882 4.4276e-08  
q 2.249780799388462 1.4092e-07 au
tp 2457036.945638414093
(2015-Jan-14.44563841)
6.532e-05 TDB
node 179.7235156033425 7.1222e-05 deg
peri 69.64018521748672 7.3154e-05 deg
i 4.276898604174138 3.7095e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      424  
   data-arc span      8177 days (22.39 yr)  
   first obs. used      1998-04-21  
   last obs. used      2020-09-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51635  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:04:04  

Additional Information
 Jupiter MOID = 1.15874 au 
 T_jup = 3.167 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.960405501143117E-15 -6.210663450434822E-15 6.435207904231243E-13 2.919985383862537E-14 1.069644054894601E-13 -7.332127481652947E-15
q -6.210663450434822E-15 1.985973815941442E-14 -2.500265605374077E-12 -9.835703195592432E-14 -4.231943241097228E-13 2.499061905076386E-14
tp 6.435207904231243E-13 -2.500265605374077E-12 4.266726671395682E-9 1.054115369474374E-11 1.103959075432032E-9 -7.780016009513738E-12
node 2.919985383862537E-14 -9.835703195592432E-14 1.054115369474374E-11 5.072592658354669E-9 -5.057489940341032E-9 2.611693999140831E-11
peri 1.069644054894601E-13 -4.231943241097228E-13 1.103959075432032E-9 -5.057489940341032E-9 5.351546679962519E-9 -2.768166677620174E-11
i -7.332127481652947E-15 2.499061905076386E-14 -7.780016009513738E-12 2.611693999140831E-11 -2.768166677620174E-11 1.37605317351356E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.10   n/a MPCxxxxx  

175111 (2004 NR18)          Discovered 2004-Jul-14 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

[ show close-approach data ]
Alternate Designations
 2004 NR18 = 1998 HW56 = 1999 RB244 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-May-07 23:36 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin