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(2018 XB5)
Classification: Apollo [NEO]          SPK-ID: 3836914
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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3104401332397138 0.00036053  
a 1.41240135169078 0.00074759 au
q .9739352878839423 6.3263e-06 au
i 25.88129735937038 0.015297 deg
node 263.0853700056894 7.73e-06 deg
peri 151.3799159187717 0.0097277 deg
M 199.8147096734106 0.45173 deg
tp 2459669.307148132813
(2022-Mar-30.80714813)
0.98592 TDB
period 613.1060669027652
1.68
0.48678
0.001333
d
yr
n .5871740950446243 0.00046619 deg/d
Q 1.850867415497617 0.00097968 au
  Orbit Determination Parameters
   # obs. used (total)      83  
   data-arc span      14 days  
   first obs. used      2018-12-14  
   last obs. used      2018-12-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .44849  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 20:56:08  

Additional Information
 Earth MOID = .0183103 au 
 Jupiter MOID = 3.51168 au 
 T_jup = 4.575 
[ 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 24.2   .51604 E2018Y90 autocmod 2.6q

[ 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
2013-Dec-01 20:06 4_17:23 Earth 0.227590856312129 0.174287141114895 0.316251716771204 14.8927859588546 14.891999831223 2456628.337595543 6802.49844809151 5772054.83689023 127.466404812674 -48.6348126795309 185270.026297941 T 7 CATAB v2.0g-lin.ifort 2021-Apr-15 20:56:08 2021-Apr-15 20:56
2018-Dec-14 20:09 < 00:01 Earth 0.0178003099003252 0.0177641788316553 0.0178364407790696 15.2199000055937 15.2100618569258 2458467.339487929 0.0192553048745056 1799.3696015306 4.13226663185046 -0.0729347430561655 1092.90851338945 T 7 CATAB v2.0g-lin.ifort 2021-Apr-15 20:56:08 2021-Apr-15 20:56
2023-Dec-26 18:57 3_18:39 Earth 0.23153399910817 0.155188886526396 0.307889023380796 18.3028386991248 18.3022099366839 2460305.289548037 5438.96907761595 3808018.60010053 21.3560123617763 -1.12059180080739 29367.0218419107 T 7 CATAB v2.0g-lin.ifort 2021-Apr-15 20:56:08 2021-Apr-15 20:56
2029-Jan-06 10:20 7_03:08 Earth 0.465056824919349 0.317785597381833 0.612438668766972 23.1492058008872 23.1489583023934 2462142.930614409 10267.6460613179 7355280.11105308 25.1327009890609 2.65594615503335 118207.037305139 T 7 CATAB v2.0g-lin.ifort 2021-Apr-15 20:56:08 2021-Apr-15 20:56
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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