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332617 (2008 TZ91)
Classification: Main-belt Asteroid          SPK-ID: 2332617
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2876848435913992 5.8798e-08  
a 2.653298647317032 3.4775e-08 au
q 1.889984840962361 1.6283e-07 au
i 12.99498724879883 6.7936e-06 deg
node 98.51069136519055 2.829e-05 deg
peri 236.3418285837157 3.151e-05 deg
M 274.9223294816593 2.2397e-05 deg
tp 2459373.570337172951
(2021-Jun-08.07033717)
0.00010414 TDB
period 1578.62010753232
4.32
3.1035e-05
8.497e-08
d
yr
n .2280472662689871 4.4833e-09 deg/d
Q 3.416612453671704 4.478e-08 au
  Orbit Determination Parameters
   # obs. used (total)      210  
   data-arc span      6202 days (16.98 yr)  
   first obs. used      2003-05-30  
   last obs. used      2020-05-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58286  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 17:37:16  

Additional Information
 Earth MOID = .912844 au 
 Jupiter MOID = 2.05775 au 
 T_jup = 3.294 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457522.5 (2016-May-14.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .286800531469754 5.8789e-08  
q 1.892962753681524 1.6274e-07 au
tp 2457794.911611374576
(2017-Feb-10.41161137)
8.0915e-05 TDB
node 98.51258614622884 2.8289e-05 deg
peri 236.4275859150093 3.1531e-05 deg
i 12.99238465467604 6.7923e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      210  
   data-arc span      6202 days (16.98 yr)  
   first obs. used      2003-05-30  
   last obs. used      2020-05-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58286  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 17:37:16  

Additional Information
 Jupiter MOID = 2.05775 au 
 T_jup = 3.294 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.456119630986254E-15 -9.459232796622409E-15 -1.485101324406467E-12 -2.016666087665102E-14 -1.520114001706361E-13 9.685594566577166E-16
q -9.459232796622409E-15 2.648382888906546E-14 5.289327585389901E-12 6.182068347305617E-14 6.1910405100223E-13 5.656432429922237E-15
tp -1.485101324406467E-12 5.289327585389901E-12 6.547305120364815E-9 6.302652094380687E-11 1.164544139936863E-9 2.262053024070533E-11
node -2.016666087665102E-14 6.182068347305617E-14 6.302652094380687E-11 8.002611635854836E-10 -7.67859271106463E-10 -2.903343799886781E-11
peri -1.520114001706361E-13 6.1910405100223E-13 1.164544139936863E-9 -7.67859271106463E-10 9.942073790596707E-10 3.267017178994009E-11
i 9.685594566577166E-16 5.656432429922237E-15 2.262053024070533E-11 -2.903343799886781E-11 3.267017178994009E-11 4.613590508240249E-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 16.1   n/a MPO434082  

332617 (2008 TZ91)          Discovered 2008-Oct-04 by CSS at Catalina
Reference: 20120703/Numbers.arcLast Updated: 2012-07-09

[ show close-approach data ]
Alternate Designations
 2008 TZ91 = 2003 KA20 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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