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 ]  
14416 (1991 RU7)
Classification: Main-belt Asteroid          SPK-ID: 2014416
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2098546424249719 4.0703e-08  
a 2.307994322255724 6.9221e-09 au
q 1.823650999039883 9.4967e-08 au
i 6.737439941185677 5.7758e-06 deg
node 178.1894797431996 2.9866e-05 deg
peri 223.5021609675601 3.2982e-05 deg
M 90.52179081583505 1.3251e-05 deg
tp 2458878.466414554585
(2020-Jan-29.96641455)
4.6912e-05 TDB
period 1280.709205104119
3.51
5.7616e-06
1.577e-08
d
yr
n .2810942550933977 1.2646e-09 deg/d
Q 2.792337645471564 8.3748e-09 au
  Orbit Determination Parameters
   # obs. used (total)      964  
   data-arc span      15809 days (43.28 yr)  
   first obs. used      1977-09-09  
   last obs. used      2020-12-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56174  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:17:58  

Additional Information
 Earth MOID = .837055 au 
 Jupiter MOID = 2.63654 au 
 T_jup = 3.548 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456952.5 (2014-Oct-22.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2103880323596079 4.0988e-08  
q 1.821853769040391 9.5679e-08 au
tp 2456315.478806224246
(2013-Jan-22.97880622)
4.6011e-05 TDB
node 178.2960573593399 2.981e-05 deg
peri 222.9809400257818 3.291e-05 deg
i 6.74347846482825 5.7825e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      964  
   data-arc span      15809 days (43.28 yr)  
   first obs. used      1977-09-09  
   last obs. used      2020-12-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56174  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:17:58  

Additional Information
 Jupiter MOID = 2.63654 au 
 T_jup = 3.548 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.679993701061335E-15 -3.915545374853504E-15 -9.288787225499278E-13 1.527173354124505E-15 -2.374309911352228E-13 -2.097924285110784E-15
q -3.915545374853504E-15 9.154450026785666E-15 2.12897778883938E-12 -4.171604777954269E-15 5.471427727560066E-13 5.117653346776124E-15
tp -9.288787225499278E-13 2.12897778883938E-12 2.117006104082961E-9 -7.667288480329465E-12 6.455827712621245E-10 1.9358435354669E-12
node 1.527173354124505E-15 -4.171604777954269E-15 -7.667288480329465E-12 8.88663991273534E-10 -8.837794918581271E-10 -2.43182583581239E-11
peri -2.374309911352228E-13 5.471427727560066E-13 6.455827712621245E-10 -8.837794918581271E-10 1.08307356259025E-9 2.468920201321255E-11
i -2.097924285110784E-15 5.117653346776124E-15 1.9358435354669E-12 -2.43182583581239E-11 2.468920201321255E-11 3.343683786187736E-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 15.7   n/a MPO502278  

14416 (1991 RU7)          Discovered 1991-Sep-08 by Oak Ridge Observatory at Harvard
Reference: 20000418/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1991 RU7 = 1977 RS18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Mar-01 17:45 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin