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85945 (1999 EB8)
Classification: Main-belt Asteroid          SPK-ID: 2085945
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1910012837650818 5.3465e-08  
a 2.450598731864444 1.1385e-08 au
q 1.982531228085254 1.3473e-07 au
i 9.155703096111989 5.4818e-06 deg
node 21.19041326840633 3.1599e-05 deg
peri 327.727473706392 3.4089e-05 deg
M 48.71206244558295 1.4805e-05 deg
tp 2458810.898944571699
(2019-Nov-23.39894457)
5.6993e-05 TDB
period 1401.221310028471
3.84
9.7646e-06
2.673e-08
d
yr
n .256918730412889 1.7904e-09 deg/d
Q 2.918666235643634 1.3559e-08 au
  Orbit Determination Parameters
   # obs. used (total)      542  
   data-arc span      7891 days (21.60 yr)  
   first obs. used      1999-03-12  
   last obs. used      2020-10-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57265  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:59:14  

Additional Information
 Earth MOID = .983883 au 
 Jupiter MOID = 2.52989 au 
 T_jup = 3.453 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457098.5 (2015-Mar-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1925243869698764 5.3445e-08  
q 1.978173855335934 1.3486e-07 au
tp 2457410.176477669655
(2016-Jan-22.67647767)
5.2467e-05 TDB
node 21.23565604024843 3.1555e-05 deg
peri 327.8154353129793 3.3998e-05 deg
i 9.165335193444509 5.4866e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      542  
   data-arc span      7891 days (21.60 yr)  
   first obs. used      1999-03-12  
   last obs. used      2020-10-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57265  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:59:14  

Additional Information
 Jupiter MOID = 2.52989 au 
 T_jup = 3.453 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.856383707806827E-15 -7.193289003876448E-15 -3.066244454863265E-13 6.63628852877023E-15 -1.227394270671338E-13 -5.44761699718693E-15
q -7.193289003876448E-15 1.818795819503791E-14 9.041955621458165E-13 -1.511761907842395E-14 3.306829092609625E-13 1.413614006762442E-14
tp -3.066244454863265E-13 9.041955621458165E-13 2.752771685606976E-9 1.895309890325512E-11 6.834779162076671E-10 -6.540284166801207E-13
node 6.63628852877023E-15 -1.511761907842395E-14 1.895309890325512E-11 9.957003698083067E-10 -9.777038412913338E-10 -1.628701706032386E-11
peri -1.227394270671338E-13 3.306829092609625E-13 6.834779162076671E-10 -9.777038412913338E-10 1.155850952993442E-9 1.601212272614455E-11
i -5.44761699718693E-15 1.413614006762442E-14 -6.540284166801207E-13 -1.628701706032386E-11 1.601212272614455E-11 3.01027012448424E-11

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 15.5   n/a MPO436376  

85945 (1999 EB8)          Discovered 1999-Mar-12 by Spacewatch at Kitt Peak
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ 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
2068-Jan-19 00:13 00:01 Juno 0.0233423662104854 0.0233244624996753 0.0233602728212726 7.7074583449901 7.70745827736781 2476399.508791564 1.3048020290682 982.68797028531 54.7614830471334 -24.7617750471509 26893.5717775317 T 18 CATAB v2.0f-lin.ifort 2020-Nov-12 20:59:17 2020-Nov-12 20:59
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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