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295719 (2008 UD40)
Classification: Outer Main-belt Asteroid          SPK-ID: 2295719
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbit Diagram
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Note: This Java-based orbit viewer will eventually be retired.

Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet 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. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet is not working, here are some notes that might help.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .202240240957815 7.8939e-08  
a 3.923737106110141 8.4299e-08 au
q 3.130199568315306 2.9369e-07 au
i 1.762882704288348 8.2911e-06 deg
node 280.3658061107022 0.00029461 deg
peri 161.5840898487569 0.00029581 deg
M 154.4448960745773 2.4232e-05 deg
tp 2457782.578381976633
(2017-Jan-29.07838198)
0.00018022 TDB
period 2838.888131833736
7.77
9.1488e-05
2.505e-07
d
yr
n .1268102099421098 4.0867e-09 deg/d
Q 4.717274643904975 1.0135e-07 au
  Orbit Determination Parameters
   # obs. used (total)      117  
   data-arc span      6295 days (17.23 yr)  
   first obs. used      2002-01-13  
   last obs. used      2019-04-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55573  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 16:41:58  

Additional Information
 Earth MOID = 2.1462 au 
 Jupiter MOID = .544354 au 
 T_jup = 3.026 
[ 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 15.8   n/a MPO437321  
diameter diameter 4.390 km 0.437 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  
geometric albedo albedo 0.033   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  

295719 (2008 UD40)          Discovered 2008-Oct-20 by Spacewatch at Kitt Peak
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14

[ 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
1909-Feb-20 04:31 00:04 Jupiter 1.73246994027754 1.73246782105663 1.73247205949863 3.45980335310738 3.31548164019214 2418357.687944307 3.82185126066788 138.890742610938 65.5848571851086 63.8396223554631 954100.098411146 T 10 CATAB v2.0f-lin.ifort 2020-Feb-25 16:42:04 2020-Feb-25 16:42
1932-Nov-28 11:43 00:05 Jupiter 1.76537220607408 1.76536936247443 1.76537504967424 3.49569169408834 3.35563166879592 2427039.988465085 5.326801702412 172.009481584965 67.0821023222254 55.9257122619832 774423.577940434 T 10 CATAB v2.0f-lin.ifort 2020-Feb-25 16:42:04 2020-Feb-25 16:42
1956-Jan-23 04:04 00:05 Jupiter 1.91349944086494 1.91349733520632 1.91350154652378 4.23454820835372 4.12869059129221 2435495.669184504 5.0414563465778 127.918899924119 66.564570536505 55.9808872873378 903815.546813264 T 10 CATAB v2.0f-lin.ifort 2020-Feb-25 16:42:04 2020-Feb-25 16:42
2001-Aug-29 01:55 00:01 Jupiter 1.9933047078209 1.99330384647293 1.99330556916876 5.27036115420473 5.18910773872428 2452150.579905259 1.48316982111827 78.926530643845 40.5231925617009 89.6037837247407 2447945.86312341 T 10 CATAB v2.0f-lin.ifort 2020-Feb-25 16:42:04 2020-Feb-25 16:42
2024-Jul-17 08:06 00:01 Jupiter 1.86166744816783 1.86166628913215 1.86166860720341 4.80379693268122 4.70813167099368 2460508.837581976 1.0490202304148 78.9113486575739 52.9354483365399 84.1521077234043 1689322.89200487 T 10 CATAB v2.0f-lin.ifort 2020-Feb-25 16:42:04 2020-Feb-25 16:42
2047-Oct-11 04:21 00:03 Jupiter 1.71987675151681 1.71987471433178 1.71987878870243 4.20215974130914 4.08327883073405 2468994.681142083 3.47826039838478 133.613077081907 64.362221223632 57.9733717871545 1093394.57908955 T 10 CATAB v2.0f-lin.ifort 2020-Feb-25 16:42:04 2020-Feb-25 16:42
2071-Aug-18 18:50 00:05 Jupiter 1.70678873307385 1.70678635683212 1.70679110931704 4.21814455082846 4.09880591516949 2477707.284842932 4.55823705092467 162.533064629934 65.9811968355778 56.455181241268 1087000.79695425 T 10 CATAB v2.0f-lin.ifort 2020-Feb-25 16:42:04 2020-Feb-25 16:42
2096-Jan-02 23:59 00:04 Jupiter 1.7791635415679 1.77916166703955 1.77916541609666 4.53055130540423 4.42422162649949 2486610.499290835 4.1139086751428 127.620617108663 68.373547040068 60.8564913802991 1256473.53195853 T 10 CATAB v2.0f-lin.ifort 2020-Feb-25 16:42:04 2020-Feb-25 16:42
2120-Jul-27 18:14 00:04 Jupiter 1.80149281179704 1.80149118061227 1.80149444298161 4.42489450517743 4.31732962932204 2495582.260027536 3.71523482375851 91.6767647525045 74.0246796477685 81.9781827503595 1221595.40695968 T 10 CATAB v2.0f-lin.ifort 2020-Feb-25 16:42:04 2020-Feb-25 16:42
2145-Jan-16 12:44 00:04 Jupiter 1.76192858024265 1.76192656614357 1.76193059434113 3.93098072645119 3.80672266542498 2504521.030886618 4.06738520721892 91.5238855624409 83.6191648261084 -58.2004218594796 828532.95816014 T 10 CATAB v2.0f-lin.ifort 2020-Feb-25 16:42:04 2020-Feb-25 16:42
2169-Jan-29 06:22 00:04 Jupiter 1.7450207011323 1.74501833729608 1.74502306496732 3.66658029721858 3.53171674224661 2513299.765009190 4.16081465964514 96.5764965387229 91.8588684410501 -30.8326294478581 650658.378278258 T 10 CATAB v2.0f-lin.ifort 2020-Feb-25 16:42:04 2020-Feb-25 16:42
2192-Jun-18 14:22 00:03 Jupiter 1.85973691742435 1.85973514803812 1.85973868681027 4.20715735206598 4.09747083525565 2521841.098625909 2.68633842468317 91.666753924797 73.7367052158738 -64.9725158314191 974224.42923499 T 10 CATAB v2.0f-lin.ifort 2020-Feb-25 16:42:04 2020-Feb-25 16:42

Alternate Designations
 2008 UD40 = 2007 RT78 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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