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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08508368768284108 8.16e-08  
a 3.246810268003688 5.6382e-08 au
q 2.97055967719542 2.6917e-07 au
i 9.529048349436307 6.2313e-06 deg
node 121.6889451826611 5.6383e-05 deg
peri 227.9846924178692 6.82e-05 deg
M 122.0676083109313 4.0299e-05 deg
tp 2458275.927699152225
(2018-Jun-06.42769915)
0.00023907 TDB
period 2136.898001972567
5.85
5.5662e-05
1.524e-07
d
yr
n .1684684995108258 4.3883e-09 deg/d
Q 3.523060858811955 6.118e-08 au
  Orbit Determination Parameters
   # obs. used (total)      250  
   data-arc span      7082 days (19.39 yr)  
   first obs. used      2000-09-04  
   last obs. used      2020-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60642  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 09:20:01  

Additional Information
 Earth MOID = 1.97342 au 
 Jupiter MOID = 1.85899 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 10:24 00:04 Jupiter 1.97626549554832 1.97626388846182 1.97626710264482 3.3202077959191 3.18850823148059 2440036.933024340 4.20154977746495 263.314955451293 27.0120557756447 -73.7466758760487 1917030.80099085 T 19 CATAB v2.0f-lin.ifort 2020-Feb-25 09:20:03 2020-Feb-25 09:20
1980-Jan-13 04:45 00:03 Jupiter 1.9222805329929 1.92227927778807 1.92228178820384 3.32010747975003 3.18462639995452 2444251.698117505 3.11282410319371 213.329257820599 24.8838125426315 -74.8854183695296 1982635.00035179 T 19 CATAB v2.0f-lin.ifort 2020-Feb-25 09:20:03 2020-Feb-25 09:20
1991-Aug-02 18:10 00:02 Jupiter 1.87962790658733 1.87962695736492 1.87962885581262 3.33885871827857 3.2010484809547 2448471.256733042 2.08523487658505 163.540227046529 23.2880084861432 -76.4165696150897 2079584.02744597 T 19 CATAB v2.0f-lin.ifort 2020-Feb-25 09:20:03 2020-Feb-25 09:20
2003-Feb-21 15:49 00:01 Jupiter 1.85570849549946 1.85570777607735 1.85570921492251 3.3789720426419 3.24107527018412 2452692.158771300 1.12625196022122 122.827859998542 23.1420759247376 -79.3002730227281 2221608.3911833 T 19 CATAB v2.0f-lin.ifort 2020-Feb-25 09:20:03 2020-Feb-25 09:20
2014-Sep-09 21:14 < 00:01 Jupiter 1.84488490357117 1.84488431214452 1.84488549499792 3.42451865467198 3.28771792355283 2456910.384930656 0.419017443492606 105.839241235433 23.8048830577847 -85.4632551979209 2408837.74025011 T 19 CATAB v2.0f-lin.ifort 2020-Feb-25 09:20:03 2020-Feb-25 09:20
2026-Mar-19 14:20 < 00:01 Jupiter 1.84887930956939 1.84887872804462 1.84887989109427 3.47781949235267 3.34349717460276 2461119.096921643 0.968400615322111 112.981757721871 24.1641727702154 87.5659409778246 2592827.19642495 T 19 CATAB v2.0f-lin.ifort 2020-Feb-25 09:20:03 2020-Feb-25 09:20
2037-Sep-12 11:38 00:02 Jupiter 1.87026228729411 1.87026156100092 1.87026301358794 3.54294499045179 3.41272322588487 2465313.984610039 1.90377567250783 119.059693933362 27.5500425656732 81.6949509308484 2611658.2252214 T 19 CATAB v2.0f-lin.ifort 2020-Feb-25 09:20:03 2020-Feb-25 09:20
2049-Feb-16 20:54 00:03 Jupiter 1.91151520938568 1.91151420179361 1.91151621697797 3.63525436472989 3.51124518870278 2469489.370812605 2.89934829847271 100.29478197325 40.450779828465 76.0992798423547 2223511.09631849 T 19 CATAB v2.0f-lin.ifort 2020-Feb-25 09:20:03 2020-Feb-25 09:20
2060-Jul-03 19:02 00:04 Jupiter 1.97600835957052 1.97600707604631 1.97600964309485 3.7993474710338 3.68479776837994 2473644.293390484 3.89392969374886 100.930180668466 52.3791893714752 -72.5763604560308 1985772.72421472 T 19 CATAB v2.0f-lin.ifort 2020-Feb-25 09:20:03 2020-Feb-25 09:20

Alternate Designations
 2008 XN55 = 2006 SV135 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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