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52178 (2244 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2052178
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1200484209034248 3.5435e-08  
a 2.552361055512165 1.1239e-08 au
q 2.245954141222531 9.2347e-08 au
i .9818782830401299 3.7263e-06 deg
node 173.8096688294563 0.00020602 deg
peri 148.9651975845083 0.00020689 deg
M 244.6437331259301 2.0956e-05 deg
tp 2459677.754776197711
(2022-Apr-08.25477620)
8.6917e-05 TDB
period 1489.40082829428
4.08
9.8372e-06
2.693e-08
d
yr
n .2417079359438023 1.5964e-09 deg/d
Q 2.858767969801799 1.2588e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1297  
   data-arc span      17353 days (47.51 yr)  
   first obs. used      1973-09-19  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51459  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 06:17:15  

Additional Information
 Earth MOID = 1.23159 au 
 Jupiter MOID = 2.42016 au 
 T_jup = 3.429 
[ 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 15.32   n/a E2021B10  

52178 (2244 T-2)          Discovered 1973-Sep-29 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2244 T-2 = 1977 RQ9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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