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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
117119 (2004 PE21)
Classification: Main-belt Asteroid          SPK-ID: 2117119
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1109494424462393 4.5993e-08  
a 2.769570083113014 1.838e-08 au
q 2.462287826575841 1.2664e-07 au
i .7763793244421739 5.0597e-06 deg
node 331.7717903168555 0.00031218 deg
peri 358.7291964580575 0.00031277 deg
M 74.20017103966964 2.0502e-05 deg
tp 2458253.508072450511
(2018-May-15.00807245)
9.5283e-05 TDB
period 1683.514905255831
4.61
1.6758e-05
4.588e-08
d
yr
n .213838320573285 2.1286e-09 deg/d
Q 3.076852339650188 2.0419e-08 au
  Orbit Determination Parameters
   # obs. used (total)      485  
   data-arc span      8809 days (24.12 yr)  
   first obs. used      1995-10-25  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59316  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 09:47:41  

Additional Information
 Earth MOID = 1.45046 au 
 Jupiter MOID = 2.23358 au 
 T_jup = 3.329 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456827.5 (2014-Jun-19.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1122920747651044 4.6223e-08  
q 2.457023536703476 1.2743e-07 au
tp 2456562.654552211328
(2013-Sep-27.15455221)
9.2288e-05 TDB
node 331.9890437092885 0.00030935 deg
peri 357.0133648374207 0.00030995 deg
i .7824876396499851 5.0664e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      485  
   data-arc span      8809 days (24.12 yr)  
   first obs. used      1995-10-25  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59316  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 09:47:41  

Additional Information
 Jupiter MOID = 2.23358 au 
 T_jup = 3.329 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.136559281274568E-15 -5.842507966585256E-15 8.750912288307081E-13 2.285152088253169E-15 1.546122068818139E-13 -3.722491519961259E-17
q -5.842507966585256E-15 1.623809473483662E-14 -2.42609843464105E-12 -9.898636128823711E-15 -4.173435071725206E-13 1.376532026508917E-16
tp 8.750912288307081E-13 -2.42609843464105E-12 8.516994153876812E-9 -2.31977587103528E-11 1.793290187104065E-9 -3.24996345428349E-13
node 2.285152088253169E-15 -9.898636128823711E-15 -2.31977587103528E-11 9.569858285640557E-8 -9.569375317282617E-8 2.006082790597691E-10
peri 1.546122068818139E-13 -4.173435071725206E-13 1.793290187104065E-9 -9.569375317282617E-8 9.606806351950499E-8 -2.006568752659971E-10
i -3.722491519961259E-17 1.376532026508917E-16 -3.24996345428349E-13 2.006082790597691E-10 -2.006568752659971E-10 2.566888144129701E-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 15.8   n/a MPO453641  

117119 (2004 PE21)          Discovered 2004-Aug-07 by NEAT at Palomar
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2004 PE21 = 1995 UG81 = 2002 CW266 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jan-17 14:29 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin