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117976 (1158 T-1)
Classification: Main-belt Asteroid          SPK-ID: 2117976
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09579447886425481 4.3046e-08  
a 2.423641572715105 1.2132e-08 au
q 2.191470091303118 1.0986e-07 au
i 6.675966740686011 5.6023e-06 deg
node 359.0338542267145 3.1425e-05 deg
peri 252.0250380425554 4.6872e-05 deg
M 311.7043690753355 3.8277e-05 deg
tp 2459185.386993401921
(2020-Dec-01.88699340)
0.00014699 TDB
period 1378.164367052506
3.77
1.0348e-05
2.833e-08
d
yr
n .2612170279586721 1.9614e-09 deg/d
Q 2.655813054127091 1.3294e-08 au
  Orbit Determination Parameters
   # obs. used (total)      698  
   data-arc span      17926 days (49.08 yr)  
   first obs. used      1971-03-24  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57402  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 20:16:09  

Additional Information
 Earth MOID = 1.18889 au 
 Jupiter MOID = 2.38831 au 
 T_jup = 3.496 
[ 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 15.8   n/a MPO469220  

117976 (1158 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

[ show close-approach data ]
Alternate Designations
 1158 T-1 = 2001 DM97 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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