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190278 (2217 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2190278
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1769223905925924 5.4662e-08  
a 2.686987819949954 1.9382e-08 au
q 2.21159951135123 1.4851e-07 au
i 1.726336208899494 6.8558e-06 deg
node 180.5284401244525 0.00014887 deg
peri 150.1369624321401 0.00014964 deg
M 281.3795561139759 1.5965e-05 deg
tp 2459551.841915143189
(2021-Dec-03.34191514)
7.2649e-05 TDB
period 1608.7811668287
4.40
1.7407e-05
4.766e-08
d
yr
n .2237718885717986 2.4212e-09 deg/d
Q 3.162376128548679 2.2811e-08 au
  Orbit Determination Parameters
   # obs. used (total)      288  
   data-arc span      17022 days (46.60 yr)  
   first obs. used      1973-09-20  
   last obs. used      2020-04-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .63473  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:06:59  

Additional Information
 Earth MOID = 1.19911 au 
 Jupiter MOID = 2.19644 au 
 T_jup = 3.350 
[ 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 16.68   n/a E2021B55  

190278 (2217 T-2)          Discovered 1973-Sep-29 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20080819/Numbers.arcLast Updated: 2008-08-25

[ show close-approach data ]
Alternate Designations
 2217 T-2 = 2004 TC238 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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