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 ]  
48262 (2001 XL87)
Classification: Main-belt Asteroid          SPK-ID: 2048262
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1307165125274098 4.1119e-08  
a 2.726712013010738 1.9066e-08 au
q 2.370285728003381 1.1061e-07 au
i 13.0854980974942 6.7169e-06 deg
node 321.6927545143919 1.855e-05 deg
peri 261.750167574433 3.1115e-05 deg
M 297.1921320681137 2.5053e-05 deg
tp 2459287.425326502212
(2021-Mar-13.92532650)
0.00011472 TDB
period 1644.588822101325
4.50
1.7249e-05
4.723e-08
d
yr
n .2188997001329612 2.2959e-09 deg/d
Q 3.083138298018095 2.1558e-08 au
  Orbit Determination Parameters
   # obs. used (total)      729  
   data-arc span      7980 days (21.85 yr)  
   first obs. used      1998-03-03  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51891  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 07:29:08  

Additional Information
 Earth MOID = 1.40578 au 
 Jupiter MOID = 2.08327 au 
 T_jup = 3.306 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457041.5 (2015-Jan-19.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1321539898032486 4.0896e-08  
q 2.365190355298883 1.1012e-07 au
tp 2457642.531318814570
(2016-Sep-11.03131881)
0.00011319 TDB
node 321.7383291135905 1.8538e-05 deg
peri 261.7970118629627 3.0962e-05 deg
i 13.093558657523 6.7192e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      729  
   data-arc span      7980 days (21.85 yr)  
   first obs. used      1998-03-03  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51891  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 07:29:08  

Additional Information
 Jupiter MOID = 2.08327 au 
 T_jup = 3.306 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.672514854943436E-15 -4.454351270190084E-15 -1.758768251387036E-12 1.51310461880281E-15 -3.728219569157807E-13 1.612546286962807E-15
q -4.454351270190084E-15 1.212561582953622E-14 4.708012700963494E-12 -4.458326849892679E-15 9.761341789652811E-13 -3.608947012646733E-15
tp -1.758768251387036E-12 4.708012700963494E-12 1.281157949762238E-8 2.133675649060096E-11 2.816240261431995E-9 1.038073672233747E-11
node 1.51310461880281E-15 -4.458326849892679E-15 2.133675649060096E-11 3.436617035294122E-10 -3.294071242543936E-10 2.71148847672409E-11
peri -3.728219569157807E-13 9.761341789652811E-13 2.816240261431995E-9 -3.294071242543936E-10 9.586421730965825E-10 -2.412094476518981E-11
i 1.612546286962807E-15 -3.608947012646733E-15 1.038073672233747E-11 2.71148847672409E-11 -2.412094476518981E-11 4.514818909828865E-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 14.7   n/a MPO432040  
rotation period rot_per 6.638 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.]

48262 (2001 XL87)          Discovered 2001-Dec-13 by LINEAR at Socorro
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Feb-21 14:09 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin