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 ]  
392498 (2011 OR20)
Classification: Main-belt Asteroid          SPK-ID: 2392498
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2276824072176671 4.9997e-08  
a 2.246425036983107 1.9996e-08 au
q 1.734953576928756 1.0982e-07 au
i 5.546554767805408 5.8115e-06 deg
node 116.9116496581373 6.0339e-05 deg
peri 155.1652394963423 6.2749e-05 deg
M 245.7065036370312 2.3257e-05 deg
tp 2459390.940931983702
(2021-Jun-25.44093198)
8.3819e-05 TDB
period 1229.805194407141
3.37
1.642e-05
4.496e-08
d
yr
n .2927292888639547 3.9085e-09 deg/d
Q 2.757896497037457 2.4549e-08 au
  Orbit Determination Parameters
   # obs. used (total)      141  
   data-arc span      5761 days (15.77 yr)  
   first obs. used      2004-04-16  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58155  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 04:44:19  

Additional Information
 Earth MOID = .720535 au 
 Jupiter MOID = 2.3627 au 
 T_jup = 3.590 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457294.5 (2015-Sep-29.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2278880191838881 4.993e-08  
q 1.734246782607957 1.0968e-07 au
tp 2456931.676260389035
(2014-Oct-01.17626039)
5.8743e-05 TDB
node 116.9438315319438 6.0351e-05 deg
peri 155.1699948074262 6.2764e-05 deg
i 5.546429818525245 5.8118e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      141  
   data-arc span      5761 days (15.77 yr)  
   first obs. used      2004-04-16  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58155  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 04:44:19  

Additional Information
 Jupiter MOID = 2.3627 au 
 T_jup = 3.590 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.492955941412509E-15 -5.425288760329222E-15 8.832713095959638E-13 1.790343309118817E-14 1.684313386454649E-13 1.586435738920226E-15
q -5.425288760329222E-15 1.203036589226334E-14 -1.397808968676378E-12 -3.585122434365479E-14 -2.055251394127574E-13 -4.194316190375984E-15
tp 8.832713095959638E-13 -1.397808968676378E-12 3.450737999349137E-9 1.581557405338959E-11 1.036556644107918E-9 -4.058359418971152E-12
node 1.790343309118817E-14 -3.585122434365479E-14 1.581557405338959E-11 3.642231619607139E-9 -3.620231304776303E-9 7.761702544971255E-11
peri 1.684313386454649E-13 -2.055251394127574E-13 1.036556644107918E-9 -3.620231304776303E-9 3.939328558507066E-9 -7.853852105207203E-11
i 1.586435738920226E-15 -4.194316190375984E-15 -4.058359418971152E-12 7.761702544971255E-11 -7.853852105207203E-11 3.377709085900801E-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 17.7   n/a MPO455786  

392498 (2011 OR20)          Discovered 2004-Apr-16 by LINEAR at Socorro
Reference: Last Updated: 2014-04-17

Alternate Designations
 2011 OR20 = 2004 HX33 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Oct-27 17:15 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin