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 ]  
213109 (1999 XX178)
Classification: Main-belt Asteroid          SPK-ID: 2213109
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1846196727231798 4.5627e-08  
a 2.583169920843218 1.3047e-08 au
q 2.106265935468781 1.218e-07 au
i 12.99635939271229 3.9185e-06 deg
node 77.99437767742924 2.0474e-05 deg
peri 92.75577240443258 2.3829e-05 deg
M 338.5067038093234 1.0329e-05 deg
tp 2459291.037482061752
(2021-Mar-17.53748206)
4.3395e-05 TDB
period 1516.449280421186
4.15
1.1489e-05
3.146e-08
d
yr
n .2373966638040224 1.7985e-09 deg/d
Q 3.060073906217655 1.5456e-08 au
  Orbit Determination Parameters
   # obs. used (total)      898  
   data-arc span      7813 days (21.39 yr)  
   first obs. used      1999-12-10  
   last obs. used      2021-05-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55858  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:39:17  

Additional Information
 Earth MOID = 1.15844 au 
 Jupiter MOID = 2.05841 au 
 T_jup = 3.364 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457656.5 (2016-Sep-25.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1849811161753385 4.5869e-08  
q 2.104672179537764 1.2257e-07 au
tp 2457776.379743048408
(2017-Jan-22.87974305)
4.6165e-05 TDB
node 78.01766511656908 2.0486e-05 deg
peri 93.06994537479331 2.3775e-05 deg
i 12.99434773937328 3.9181e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      898  
   data-arc span      7813 days (21.39 yr)  
   first obs. used      1999-12-10  
   last obs. used      2021-05-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55858  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:39:17  

Additional Information
 Jupiter MOID = 2.05841 au 
 T_jup = 3.364 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.103996511155926E-15 -5.603335365248229E-15 1.303246337124074E-12 -2.032113169459707E-15 3.706140598201796E-13 -1.168512291947176E-14
q -5.603335365248229E-15 1.502337918853435E-14 -3.566518542349153E-12 7.125908393227591E-15 -1.015714189934243E-12 3.165143672639273E-14
tp 1.303246337124074E-12 -3.566518542349153E-12 2.131195084219679E-9 -2.988481763358616E-12 5.845733853534663E-10 -8.961159506259857E-12
node -2.032113169459707E-15 7.125908393227591E-15 -2.988481763358616E-12 4.196675732847185E-10 -4.095233627651306E-10 -4.119985596653054E-11
peri 3.706140598201796E-13 -1.015714189934243E-12 5.845733853534663E-10 -4.095233627651306E-10 5.652717045264318E-10 3.762856484599634E-11
i -1.168512291947176E-14 3.165143672639273E-14 -8.961159506259857E-12 -4.119985596653054E-11 3.762856484599634E-11 1.535155516595571E-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 15.43   n/a MPCxxxxx  

213109 (1999 XX178)          Discovered 1999-Dec-10 by LINEAR at Socorro
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jun-12 12:55 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin