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120943 (1998 TN22)
Classification: Outer Main-belt Asteroid          SPK-ID: 2120943
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09128176457235754 4.0021e-08  
a 3.211695973627813 2.9655e-08 au
q 2.91852669788513 1.4067e-07 au
i 3.617000595149824 4.3589e-06 deg
node 209.3512742274935 7.2708e-05 deg
peri 247.2631756494644 7.9259e-05 deg
M 249.8387560069405 3.5557e-05 deg
tp 2459843.819030126088
(2022-Sep-21.31903013)
0.00021179 TDB
period 2102.326030922301
5.76
2.9118e-05
7.972e-08
d
yr
n .1712389014381686 2.3717e-09 deg/d
Q 3.504865249370495 3.2362e-08 au
  Orbit Determination Parameters
   # obs. used (total)      543  
   data-arc span      8087 days (22.14 yr)  
   first obs. used      1998-10-13  
   last obs. used      2020-12-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52375  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 17:08:52  

Additional Information
 Earth MOID = 1.93761 au 
 Jupiter MOID = 1.6608 au 
 T_jup = 3.182 
[ show covariance matrix ]

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 15.12   n/a E2021B55  

120943 (1998 TN22)          Discovered 1998-Oct-13 by Spacewatch at Kitt Peak
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 1998 TN22 = 2000 CD35 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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