Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3391559111927259 4.024e-08  
a 2.601563122561258 1.6455e-08 au
q 1.719227611203601 1.0891e-07 au
i 5.252776551963475 5.3334e-06 deg
node 325.1033440121392 7.0571e-05 deg
peri 311.3480574003434 7.1511e-05 deg
M 127.8645947624859 1.5109e-05 deg
tp 2458456.125486339596
(2018-Dec-03.62548634)
6.062e-05 TDB
period 1532.674664802851
4.20
1.4542e-05
3.981e-08
d
yr
n .234883506765806 2.2285e-09 deg/d
Q 3.483898633918915 2.2036e-08 au
  Orbit Determination Parameters
   # obs. used (total)      486  
   data-arc span      21672 days (59.33 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53418  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 05:51:21  

Additional Information
 Earth MOID = .708527 au 
 Jupiter MOID = 1.69962 au 
 T_jup = 3.325 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456834.5 (2014-Jun-26.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3388729018834991 4.0111e-08  
q 1.719792503367618 1.0852e-07 au
tp 2456924.710985196623
(2014-Sep-24.21098520)
5.1863e-05 TDB
node 325.1558924551709 7.0553e-05 deg
peri 311.4150708884069 7.15e-05 deg
i 5.253234004712367 5.3358e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      486  
   data-arc span      21672 days (59.33 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53418  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 05:51:21  

Additional Information
 Jupiter MOID = 1.69962 au 
 T_jup = 3.325 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.608916015032454E-15 -4.333558977672678E-15 -8.110139924777654E-13 2.024032006631626E-14 -2.031126500203904E-13 7.723679615436022E-16
q -4.333558977672678E-15 1.177617665215567E-14 2.403966465548E-12 -4.734896920862983E-14 5.884927221719394E-13 -9.77615160339644E-16
tp -8.110139924777654E-13 2.403966465548E-12 2.689804316281272E-9 -2.521941081171956E-11 6.636539207727678E-10 1.762672219416645E-12
node 2.024032006631626E-14 -4.734896920862983E-14 -2.521941081171956E-11 4.977694422458558E-9 -4.961300606525172E-9 1.424777801948912E-10
peri -2.031126500203904E-13 5.884927221719394E-13 6.636539207727678E-10 -4.961300606525172E-9 5.112293722099233E-9 -1.414326197888909E-10
i 7.723679615436022E-16 -9.77615160339644E-16 1.762672219416645E-12 1.424777801948912E-10 -1.414326197888909E-10 2.847024372468024E-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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Nov-26 22:16 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin