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(2009 XH8)
Classification: Amor [NEO]          SPK-ID: 3483649
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer 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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .47892247843968 0.00010301  
a 2.06719272097019 0.00039985 au
q 1.077167659630681 4.5971e-06 au
i 4.923951707565012 0.00083345 deg
node 79.32315975486003 0.0018093 deg
peri 1.52048013926091 0.0033958 deg
M 186.272515774775 0.40838 deg
tp 2459524.384931871572
(2021-Nov-05.88493187)
1.3835 TDB
period 1085.600107057682
2.97
0.31497
0.0008623
d
yr
n .3316138213874291 9.6213e-05 deg/d
Q 3.057217782309699 0.00059134 au
  Orbit Determination Parameters
   # obs. used (total)      31  
   data-arc span      55 days  
   first obs. used      2009-12-15  
   last obs. used      2010-02-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .40658  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:58:45  

Additional Information
 Earth MOID = .0929753 au 
 Jupiter MOID = 2.22149 au 
 T_jup = 3.620 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 23.2   n/a MPO172390  

[ 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
2003-Oct-17 19:57 2_03:10 Mars 0.0866067908768005 0.0841721607244836 0.0996161938669055 12.4258711114788 12.4256050806027 2452930.331576445 3069.74861318318 1640240.36400196 161.677287786642 76.3899910682242 78120.2336166569 T 9 CATAB v2.0e-lin.ifort 2017-Nov-28 15:42:03 2018-Dec-11 15:26
2004-Jan-19 22:37 1_01:51 Earth 0.468309271807246 0.430481287637205 0.506293522288853 17.2797044319689 17.2793751655588 2453024.442351876 1550.50076900434 1937767.06948329 86.2042021493776 -12.6814568609664 179718.868709067 T 9 CATAB v2.0e-lin.ifort 2017-Nov-28 15:42:03 2018-Dec-11 15:26
2007-Jan-06 14:52 1_01:13 Earth 0.263461375467648 0.244733041142138 0.282264052566719 11.0966193309288 11.0957079025436 2454107.119474385 1513.35289302364 961435.338446283 104.217714423417 -13.2575930053281 84857.361670658 T 9 CATAB v2.0e-lin.ifort 2017-Nov-28 15:42:03 2018-Dec-11 15:26
2009-Dec-20 12:45 00:02 Earth 0.11801139329417 0.117941548597586 0.118081237938176 6.2143963321048 6.21076206803401 2455186.031284171 2.39653370495328 3480.65799542127 148.969298020146 1.83260840167436 3519.737305347 T 9 CATAB v2.0e-lin.ifort 2017-Nov-28 15:42:03 2018-Dec-11 15:26
2012-Nov-30 02:35 2_12:35 Earth 0.129246623276725 0.115276732778899 0.143305778893762 6.71664874706398 6.71357873714924 2456261.607768955 3634.51707069336 719092.695815157 102.808213273359 -13.6295984732435 32522.6062022183 T 9 CATAB v2.0e-lin.ifort 2017-Nov-28 15:42:03 2018-Dec-11 15:26
2015-Nov-15 06:14 1_21:51 Earth 0.288818045180565 0.251667095418737 0.325968401033798 11.7291476828571 11.7283611150992 2457341.759910163 2751.33635893457 1852437.71614741 57.6827851839527 0.274959379601414 2718.46690248516 T 9 CATAB v2.0e-lin.ifort 2017-Nov-28 15:42:03 2018-Dec-11 15:26
2018-Nov-01 20:01 1_15:10 Earth 0.478903759617907 0.423546676834203 0.534264674041786 17.6371190768368 17.6368036197073 2458424.333760436 2349.66915036434 2761355.78463694 41.8151055089719 1.44279647654757 37311.9986515294 T 9 CATAB v2.0e-lin.ifort 2017-Nov-28 15:42:03 2018-Dec-11 15:26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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