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22918 (1999 TZ80)
Classification: Main-belt Asteroid          SPK-ID: 2022918
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1107206146543066 3.6056e-08  
a 2.56701064542222 9.387e-09 au
q 2.282789648936923 9.149e-08 au
i 4.852215323542933 3.9808e-06 deg
node 171.6581690157863 4.3986e-05 deg
peri 188.760343180713 4.7668e-05 deg
M 66.90325456953393 1.8746e-05 deg
tp 2458921.319760437160
(2020-Mar-12.81976044)		 7.7818e-05 TDB
period 1502.242108986875
4.11		 8.24e-06
2.256e-08		 d
yr
n .2396417979807444 1.3145e-09 deg/d
Q 2.851231641907516 1.0426e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1176  
   data-arc span      9221 days (25.25 yr)  
   first obs. used      1995-11-14  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50215  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:14:46  

Additional Information
 Earth MOID = 1.2778 au 
 Jupiter MOID = 2.59065 au 
 T_jup = 3.418 
[ show covariance matrix ]

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.0   n/a MPO435914  

22918 (1999 TZ80)          Discovered 1999-Oct-11 by Spacewatch at Kitt Peak
Reference: 20010309/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 TZ80 = 1997 EA26 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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