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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3392570847749058 4.1368e-08  
a 2.600805885337763 1.6895e-08 au
q 1.718464062612656 1.1229e-07 au
i 5.253011220828331 5.4529e-06 deg
node 325.1137867218175 7.0592e-05 deg
peri 311.2844523837791 7.153e-05 deg
M 33.9419663369827 1.4584e-05 deg
tp 2458456.057554272184
(2018-Dec-03.55755427)
6.1066e-05 TDB
period 1532.005539860426
4.19
1.4928e-05
4.087e-08
d
yr
n .2349860954372254 2.2897e-09 deg/d
Q 3.483147708062871 2.2626e-08 au
  Orbit Determination Parameters
   # obs. used (total)      479  
   data-arc span      21600 days (59.14 yr)  
   first obs. used      1960-09-24  
   last obs. used      2019-11-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53779  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 11:03:14  

Additional Information
 Earth MOID = .707252 au 
 Jupiter MOID = 1.6987 au 
 T_jup = 3.325 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456754.5 (2014-Apr-07.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3388316145127045 4.1227e-08  
q 1.719803842430565 1.1184e-07 au
tp 2456924.717512958373
(2014-Sep-24.21751296)
5.2066e-05 TDB
node 325.1573088104138 7.0567e-05 deg
peri 311.4153694373388 7.1514e-05 deg
i 5.253269468501307 5.4546e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      479  
   data-arc span      21600 days (59.14 yr)  
   first obs. used      1960-09-24  
   last obs. used      2019-11-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53779  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 11:03:14  

Additional Information
 Jupiter MOID = 1.6987 au 
 T_jup = 3.325 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.699636702271196E-15 -4.591400443547079E-15 -8.534436363978192E-13 2.067793860620646E-14 -2.05494955478441E-13 5.772167900236884E-16
q -4.591400443547079E-15 1.250910237188996E-14 2.524884841345322E-12 -4.841928430742601E-14 5.951371830888406E-13 -3.387942038863547E-16
tp -8.534436363978192E-13 2.524884841345322E-12 2.710900453361553E-9 -2.521065065018116E-11 6.649215304505555E-10 2.360854698915627E-12
node 2.067793860620646E-14 -4.841928430742601E-14 -2.521065065018116E-11 4.97963675001822E-9 -4.963192547250219E-9 1.434372785552412E-10
peri -2.05494955478441E-13 5.951371830888406E-13 6.649215304505555E-10 -4.963192547250219E-9 5.114288915461269E-9 -1.422456305370504E-10
i 5.772167900236884E-16 -3.387942038863547E-16 2.360854698915627E-12 1.434372785552412E-10 -1.422456305370504E-10 2.975224640849693E-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 15.8   n/a MPO502792  

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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