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 ]  
52054 (2002 PB121)
Classification: Main-belt Asteroid          SPK-ID: 2052054
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0827894264600135 4.5633e-08  
a 2.675954743436975 2.0608e-08 au
q 2.454413984994876 1.2257e-07 au
i 10.94077276120359 5.0732e-06 deg
node 185.418649718383 2.3919e-05 deg
peri 173.3469918807358 3.6316e-05 deg
M 359.4843612308596 2.9171e-05 deg
tp 2459002.790127361246
(2020-Jun-02.29012736)
0.00012957 TDB
period 1598.88258872153
4.38
1.847e-05
5.057e-08
d
yr
n .2251572457786639 2.601e-09 deg/d
Q 2.897495501879075 2.2314e-08 au
  Orbit Determination Parameters
   # obs. used (total)      569  
   data-arc span      8037 days (22.00 yr)  
   first obs. used      1996-04-19  
   last obs. used      2018-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52396  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-07 04:22:03  

Additional Information
 Earth MOID = 1.45143 au 
 Jupiter MOID = 2.48978 au 
 T_jup = 3.348 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456596.5 (2013-Oct-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08524879314564864 4.5748e-08  
q 2.44715000005136 1.2316e-07 au
tp 2455806.227076981115
(2011-Sep-01.72707698)
0.00011828 TDB
node 185.5371602473887 2.3885e-05 deg
peri 173.6156337357002 3.5642e-05 deg
i 10.95027287592093 5.0775e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      569  
   data-arc span      8037 days (22.00 yr)  
   first obs. used      1996-04-19  
   last obs. used      2018-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52396  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-07 04:22:03  

Additional Information
 Jupiter MOID = 2.48978 au 
 T_jup = 3.348 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.092922057162521E-15 -5.56877498892905E-15 -3.209644335326884E-13 -1.718993886206768E-14 -2.907856271029783E-14 -1.121337656054974E-15
q -5.56877498892905E-15 1.516834965180455E-14 9.70249504325393E-13 4.514502884595475E-14 1.39787147864781E-13 4.347932297239342E-15
tp -3.209644335326884E-13 9.70249504325393E-13 1.398943121478434E-8 6.681446632324303E-12 3.140550890580981E-9 -5.731659022007828E-14
node -1.718993886206768E-14 4.514502884595475E-14 6.681446632324303E-12 5.704909050598508E-10 -5.584385973685978E-10 -6.758770666023694E-12
peri -2.907856271029783E-14 1.39787147864781E-13 3.140550890580981E-9 -5.584385973685978E-10 1.27037164932411E-9 6.707911777270942E-12
i -1.121337656054974E-15 4.347932297239342E-15 -5.731659022007828E-14 -6.758770666023694E-12 6.707911777270942E-12 2.578117908174032E-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 15.1   n/a MPO439445  
rotation period rot_per 6.284 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

52054 (2002 PB121)          Discovered 2002-Aug-13 by LONEOS at Anderson Mesa
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2002 PB121 = 1998 SO141 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Feb-22 05:35 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin