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117870 (2174 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2117870
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .338846210708909 4.0205e-08  
a 2.602239734601906 1.6513e-08 au
q 1.720480661175893 1.0887e-07 au
i 5.252999983756915 5.2765e-06 deg
node 325.0985816990276 6.9782e-05 deg
peri 311.3900293356769 7.0716e-05 deg
M 220.7922362812317 1.5723e-05 deg
tp 2459989.398482740012
(2023-Feb-13.89848274)
7.1366e-05 TDB
period 1533.272628512367
4.20
1.4594e-05
3.996e-08
d
yr
n .2347919041307639 2.2348e-09 deg/d
Q 3.483998808027919 2.2108e-08 au
  Orbit Determination Parameters
   # obs. used (total)      496  
   data-arc span      22017 days (60.28 yr)  
   first obs. used      1960-09-24  
   last obs. used      2021-01-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53042  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 16:54:38  

Additional Information
 Earth MOID = .709576 au 
 Jupiter MOID = 1.69794 au 
 T_jup = 3.325 
[ 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 15.83   n/a MPCxxxxx  

117870 (2174 P-L)          Discovered 1960-Sep-24 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
 2174 P-L = 2001 DR86 = 2002 TM185 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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