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 ]  
66966 (1999 XJ52)
Classification: Main-belt Asteroid          SPK-ID: 2066966
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09553003620229307 6.1031e-08  
a 3.126857312764207 2.9055e-08 au
q 2.828148520476437 1.9136e-07 au
i 12.4152229976028 5.5125e-06 deg
node 254.0648613251299 3.2697e-05 deg
peri 290.2829203359124 4.405e-05 deg
M 141.9815104526669 3.0106e-05 deg
tp 2458203.992602576877
(2018-Mar-26.49260258)
0.00016657 TDB
period 2019.57749398586
5.53
2.8149e-05
7.707e-08
d
yr
n .1782551058684558 2.4846e-09 deg/d
Q 3.425566105051976 3.1831e-08 au
  Orbit Determination Parameters
   # obs. used (total)      724  
   data-arc span      6767 days (18.53 yr)  
   first obs. used      1999-12-07  
   last obs. used      2018-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58115  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 08:44:27  

Additional Information
 Earth MOID = 1.85794 au 
 Jupiter MOID = 1.71994 au 
 T_jup = 3.171 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456321.5 (2013-Jan-29.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09170660669609434 6.1556e-08  
q 2.842927170468451 1.9217e-07 au
tp 2456183.162364985234
(2012-Sep-12.66236499)
0.00017058 TDB
node 254.1388473662255 3.2687e-05 deg
peri 290.8862430286388 4.4717e-05 deg
i 12.4102041239327 5.5125e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      724  
   data-arc span      6767 days (18.53 yr)  
   first obs. used      1999-12-07  
   last obs. used      2018-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58115  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 08:44:27  

Additional Information
 Jupiter MOID = 1.71994 au 
 T_jup = 3.171 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.78912240553057E-15 -1.17196420373332E-14 -1.163092811711571E-12 2.052314583435884E-15 -2.092963171385433E-13 -2.906496565411728E-15
q -1.17196420373332E-14 3.692805578879673E-14 3.591476120869786E-12 -8.927015002600474E-15 6.496449989589498E-13 1.291791805590604E-14
tp -1.163092811711571E-12 3.591476120869786E-12 2.909878675012755E-8 -6.9022149375484E-12 5.288881545428144E-9 -1.960663901420747E-12
node 2.052314583435884E-15 -8.927015002600474E-15 -6.9022149375484E-12 1.06846985871457E-9 -1.044507319902878E-9 -6.876070148409129E-12
peri -2.092963171385433E-13 6.496449989589498E-13 5.288881545428144E-9 -1.044507319902878E-9 1.999638038062835E-9 6.628668943224726E-12
i -2.906496565411728E-15 1.291791805590604E-14 -1.960663901420747E-12 -6.876070148409129E-12 6.628668943224726E-12 3.038792903661851E-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 13.9   n/a MPO436250  

66966 (1999 XJ52)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 XJ52 = 2000 YM21 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Aug-03 09:58 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin