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117978 (1215 T-1)
Classification: Main-belt Asteroid          SPK-ID: 2117978
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1025410109525146 5.5351e-08  
a 2.542913587658287 1.7418e-08 au
q 2.282160657614921 1.3474e-07 au
i 16.80306109472037 6.4889e-06 deg
node 3.038406433019403 1.94e-05 deg
peri 152.7908716384687 3.7404e-05 deg
M 64.73276715625082 3.293e-05 deg
tp 2458734.171586482534
(2019-Sep-07.67158648)
0.00013549 TDB
period 1481.139044077299
4.06
1.5218e-05
4.166e-08
d
yr
n .2430561812812572 2.4973e-09 deg/d
Q 2.803666517701654 1.9204e-08 au
  Orbit Determination Parameters
   # obs. used (total)      424  
   data-arc span      17983 days (49.23 yr)  
   first obs. used      1971-03-24  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56703  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 01:51:11  

Additional Information
 Earth MOID = 1.29866 au 
 Jupiter MOID = 2.18004 au 
 T_jup = 3.378 
[ 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 MPO309994  

117978 (1215 T-1)          Discovered 1971-Mar-25 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1215 T-1 = 1999 CK120 = 2001 RL130 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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