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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1196131359600759 3.769e-08  
a 2.553268183277335 1.2707e-08 au
q 2.247863768928447 9.8209e-08 au
i .9816024817555536 4.1555e-06 deg
node 173.8205602360705 0.00023422 deg
peri 148.8448012593121 0.00023533 deg
M 99.80395844457331 2.403e-05 deg
tp 2458187.368468485361
(2018-Mar-09.86846849)
0.00010004 TDB
period 1490.194914742451
4.08
1.1125e-05
3.046e-08
d
yr
n .241579136016726 1.8035e-09 deg/d
Q 2.858672597626223 1.4227e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1182  
   data-arc span      16558 days (45.33 yr)  
   first obs. used      1973-09-19  
   last obs. used      2019-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52182  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 03:04:54  

Additional Information
 Earth MOID = 1.23457 au 
 Jupiter MOID = 2.41812 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 15.3   n/a MPO319703  

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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