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 ]  
243380 (2008 XN55)
Classification: Outer Main-belt Asteroid          SPK-ID: 2243380
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08480309921210252 8.5086e-08  
a 3.246473176784778 5.7958e-08 au
q 2.971162189884469 2.8311e-07 au
i 9.527910546329624 6.3818e-06 deg
node 121.6940125554252 5.8657e-05 deg
peri 227.9142789193553 7.066e-05 deg
M 54.77369123194058 4.1446e-05 deg
tp 2458275.423433646294
(2018-Jun-05.92343365)
0.00024607 TDB
period 2136.56522420185
5.85
5.7215e-05
1.566e-07
d
yr
n .168494739089692 4.5121e-09 deg/d
Q 3.521784163685087 6.2873e-08 au
  Orbit Determination Parameters
   # obs. used (total)      225  
   data-arc span      6615 days (18.11 yr)  
   first obs. used      2000-09-04  
   last obs. used      2018-10-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62124  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-31 04:10:33  

Additional Information
 Earth MOID = 1.97307 au 
 Jupiter MOID = 1.85687 au 
 T_jup = 3.155 
[ show covariance matrix ]

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 15.2   n/a MPO454785  
diameter diameter 4.599 km 1.333 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.056   0.044 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243380 (2008 XN55)          Discovered 2008-Dec-03 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20100626/Numbers.arcLast Updated: 2010-06-28

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1968-Jun-29 10:23 00:04 Jupiter 1.97626500978211 1.97626338223854 1.97626663733603 3.32020725909376 3.18850763944165 2440036.932448939 4.29403527615031 269.237109694659 28.3437890681865 -73.9451525267907 1842355.9845752 T 17 CATAB v2.0e-lin.ifort 2018-Oct-31 04:10:35 2018-Dec-17 23:05
1980-Jan-13 04:45 00:03 Jupiter 1.9222800996885 1.9222788304146 1.92228136896864 3.32010671787299 3.1846255744769 2444251.697723518 3.17737301728784 217.997408914412 25.9442377512138 -75.0984048389654 1914431.4323578 T 17 CATAB v2.0e-lin.ifort 2018-Oct-31 04:10:35 2018-Dec-17 23:05
1991-Aug-02 18:09 00:02 Jupiter 1.87962753374603 1.87962657461538 1.87962849287957 3.33885771665856 3.20104740828898 2448471.256467224 2.12368758133944 167.265147490972 24.0078010288205 -76.6441860674031 2020839.4166715 T 17 CATAB v2.0e-lin.ifort 2018-Oct-31 04:10:35 2018-Dec-17 23:05
2003-Feb-21 15:48 00:01 Jupiter 1.85570818063342 1.85570745383658 1.85570890743122 3.37897079337844 3.24107394387342 2452692.158664831 1.14107001154817 126.411564152529 23.5215259712067 -79.5343205793407 2176041.96518836 T 17 CATAB v2.0e-lin.ifort 2018-Oct-31 04:10:35 2018-Dec-17 23:05
2014-Sep-09 21:14 < 00:01 Jupiter 1.84488463255135 1.84488403639433 1.84488522870837 3.42451719223937 3.2877163797543 2456910.384975133 0.436577367422548 110.400746859335 23.9639849600227 -85.5528031295378 2374558.20894811 T 17 CATAB v2.0e-lin.ifort 2018-Oct-31 04:10:35 2018-Dec-17 23:05
2026-Mar-19 14:20 00:01 Jupiter 1.84887906287747 1.84887847707965 1.84887964867539 3.47781786059089 3.34349545900387 2461119.097108561 1.02762694002322 118.607239976933 24.3382340827908 87.6590761986001 2563134.90126619 T 17 CATAB v2.0e-lin.ifort 2018-Oct-31 04:10:35 2018-Dec-17 23:05
2037-Sep-12 11:38 00:02 Jupiter 1.87026204564383 1.8702613036276 1.87026278766091 3.54294324990608 3.41272140177732 2465313.984935336 2.00025310380768 124.723072774253 27.9437186926798 81.6943637190895 2579470.47669622 T 17 CATAB v2.0e-lin.ifort 2018-Oct-31 04:10:35 2018-Dec-17 23:05
2049-Feb-16 20:55 00:03 Jupiter 1.91151496224483 1.91151391506446 1.91151600942543 3.63525260396408 3.51124334943436 2469489.371266163 3.03985662094632 104.294867922751 41.7257425899604 75.6739271661549 2168542.11500231 T 17 CATAB v2.0e-lin.ifort 2018-Oct-31 04:10:35 2018-Dec-17 23:05
2060-Jul-03 19:03 00:04 Jupiter 1.9760081168923 1.97600676878463 1.97600946500009 3.79934579968407 3.68479603078598 2473644.293958369 4.08241529503431 104.995067259185 54.6701721931941 -71.8684273714644 1923534.10572162 T 17 CATAB v2.0e-lin.ifort 2018-Oct-31 04:10:35 2018-Dec-17 23:05

Alternate Designations
 2008 XN55 = 2006 SV135 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jan-19 13:58 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin