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JPL Small-Body Database Browser
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117986 (3176 T-1)
Classification: Main-belt Asteroid          SPK-ID: 2117986
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1294009767461629 6.1944e-08  
a 2.625866223349638 1.7242e-08 au
q 2.286076569243437 1.5811e-07 au
i 4.554895102551258 5.4541e-06 deg
node 189.6208008680378 5.9995e-05 deg
peri 349.5968917809068 6.3106e-05 deg
M 205.1410137571181 2.2563e-05 deg
tp 2459669.061299506578
(2022-Mar-30.56129951)
0.00010074 TDB
period 1554.201494286425
4.26
1.5308e-05
4.191e-08
d
yr
n .231630198094286 2.2814e-09 deg/d
Q 2.965655877455839 1.9473e-08 au
  Orbit Determination Parameters
   # obs. used (total)      378  
   data-arc span      17698 days (48.45 yr)  
   first obs. used      1971-03-24  
   last obs. used      2019-09-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59888  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 03:17:09  

Additional Information
 Earth MOID = 1.28957 au 
 Jupiter MOID = 1.99647 au 
 T_jup = 3.386 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456904.5 (2014-Sep-04.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1282465868863865 6.2202e-08  
q 2.290256047451038 1.5869e-07 au
tp 2456559.924320366122
(2013-Sep-24.42432037)
8.8914e-05 TDB
node 189.6696196519048 5.9961e-05 deg
peri 349.7596679892488 6.3094e-05 deg
i 4.554699506502494 5.4553e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      378  
   data-arc span      17698 days (48.45 yr)  
   first obs. used      1971-03-24  
   last obs. used      2019-09-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59888  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 03:17:09  

Additional Information
 Jupiter MOID = 1.99647 au 
 T_jup = 3.386 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.869101108635009E-15 -9.831389241753553E-15 1.963766214844398E-12 2.148694150954387E-14 2.717805236678178E-13 -3.351195037130623E-15
q -9.831389241753553E-15 2.518281261537707E-14 -4.82615980265535E-12 -5.622662978392044E-14 -6.428981661690829E-13 8.694821661400795E-15
tp 1.963766214844398E-12 -4.82615980265535E-12 7.905725831203738E-9 2.973875355664283E-11 1.750848000861671E-9 -7.069212281364397E-12
node 2.148694150954387E-14 -5.622662978392044E-14 2.973875355664283E-11 3.595360701685556E-9 -3.577633753855737E-9 4.440651603814369E-11
peri 2.717805236678178E-13 -6.428981661690829E-13 1.750848000861671E-9 -3.577633753855737E-9 3.980802000992135E-9 -4.579807554302337E-11
i -3.351195037130623E-15 8.694821661400795E-15 -7.069212281364397E-12 4.440651603814369E-11 -4.579807554302337E-11 2.976013795807765E-11

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 16.0   n/a MPO439766  

117986 (3176 T-1)          Discovered 1971-Mar-26 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
 3176 T-1 = 2001 HR51 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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