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(2019 UN8)
Classification: Apollo [NEO]          SPK-ID: 3883110
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458785.5 (2019-Oct-29.0) TDB
Reference: JPL 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .7240124895933935 0.0011104  
a 2.580206533958239 0.009411 au
q .7121047776419938 0.00026772 au
i .3544408485968138 0.00042799 deg
node 18.41507197609198 0.0034908 deg
peri 299.9815328553404 0.0033678 deg
M 11.26501792526585 0.067398 deg
tp 2458738.129330882178
(2019-Sep-11.62933088)
0.024247 TDB
period 1513.8405456211
4.14
8.2824
0.02268
d
yr
n .2378057590288011 0.0013011 deg/d
Q 4.448308290274485 0.016225 au
  Orbit Determination Parameters
   # obs. used (total)      17  
   data-arc span      4 days  
   first obs. used      2019-10-25  
   last obs. used      2019-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      8  
   norm. resid. RMS      .44234  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-17 05:08:42  

Additional Information
 Earth MOID = .00121796 au 
 Jupiter MOID = .89631 au 
 T_jup = 2.988 
[ 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 29.7   .48863 MPO502128 autocmod 2.8

[ 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
2019-Oct-23 15:09 < 00:01 Moon 0.00453302867984821 0.00452376709555638 0.0045422919383753 20.2803727124402 20.2800162135441 2458780.131371798 0.746394619733677 481.878469608792 4.81010704958976 16.5784846981393 39338.461690846 T 2 CATAB v2.0f-lin.ifort 2020-Jan-17 05:08:43 2020-Jan-17 05:08
2019-Oct-23 16:36 < 00:01 Earth 0.00241112172803758 0.00240139843194555 0.00242084454891421 19.2803817948932 19.2229801200644 2458780.191864808 0.584115772613927 481.893871953372 4.66245036392927 0.000829724210566284 583.697416279004 T 2 CATAB v2.0f-lin.ifort 2020-Jan-17 05:08:43 2020-Jan-17 05:08
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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