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216402 (2008 ET96)
Classification: Main-belt Asteroid          SPK-ID: 2216402
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07620663590239685 7.8437e-08  
a 2.8570562844957 2.8405e-08 au
q 2.639329636470482 2.2688e-07 au
i 2.166017264858298 8.3456e-06 deg
node 169.0836237899652 0.0001295 deg
peri 206.7160612423896 0.00013581 deg
M 45.5976275348178 3.6815e-05 deg
tp 2459173.082922249908
(2020-Nov-19.58292225)
0.00018171 TDB
period 1763.910807171217
4.83
2.6305e-05
7.202e-08
d
yr
n .2040919521193545 3.0437e-09 deg/d
Q 3.074782932520919 3.057e-08 au
  Orbit Determination Parameters
   # obs. used (total)      179  
   data-arc span      6987 days (19.13 yr)  
   first obs. used      2001-11-20  
   last obs. used      2021-01-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .66225  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:54:40  

Additional Information
 Earth MOID = 1.6396 au 
 Jupiter MOID = 2.31264 au 
 T_jup = 3.298 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457807.5 (2017-Feb-23.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0792912810906892 7.9071e-08  
q 2.629942159326354 2.2971e-07 au
tp 2457403.277460529437
(2016-Jan-15.77746053)
0.00018261 TDB
node 169.2592728942449 0.00012954 deg
peri 205.5556472319765 0.0001352 deg
i 2.165884881263855 8.3521e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      179  
   data-arc span      6987 days (19.13 yr)  
   first obs. used      2001-11-20  
   last obs. used      2021-01-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .66225  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:54:40  

Additional Information
 Jupiter MOID = 2.31264 au 
 T_jup = 3.298 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.252173548789899E-15 -1.804616215033442E-14 -1.537373523618025E-12 4.327055189128785E-15 -2.059304695340149E-13 3.625049191700391E-16
q -1.804616215033442E-14 5.276645019067327E-14 1.968482542440513E-12 -1.438527473352867E-14 9.553672751484511E-14 -6.675349703805879E-16
tp -1.537373523618025E-12 1.968482542440513E-12 3.334515209307472E-8 9.461923907784558E-12 7.073415184860508E-9 1.587177064440034E-12
node 4.327055189128785E-15 -1.438527473352867E-14 9.461923907784558E-12 1.678187847319709E-8 -1.676735573857841E-8 2.494803665276945E-10
peri -2.059304695340149E-13 9.553672751484511E-14 7.073415184860508E-9 -1.676735573857841E-8 1.827893179832223E-8 -2.489882865639116E-10
i 3.625049191700391E-16 -6.675349703805879E-16 1.587177064440034E-12 2.494803665276945E-10 -2.489882865639116E-10 6.975759886658234E-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 16.85   n/a MPCxxxxx  

216402 (2008 ET96)          Discovered 2008-Mar-07 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

[ 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
2179-Apr-26 17:04 00:06 Hygie 0.0463205148112031 0.0463102504267619 0.0463310916421693 3.27489593741959 3.27489568271805 2517039.211112731 5.59497056162701 6118.70894557939 99.8532750492517 85.2547133204219 68974.1116761589 T 14 CATAB v2.0f-lin.ifort 2021-Apr-13 23:54:40 2021-Apr-13 23:54

Alternate Designations
 2008 ET96 = 2006 UP324 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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