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117908 (4104 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2117908
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1223841895829779 5.9676e-08  
a 2.32221778488158 7.7388e-09 au
q 2.03801504324367 1.4083e-07 au
i 6.100962145441214 5.3269e-06 deg
node 208.9980908619949 4.1271e-05 deg
peri 172.1201560580301 4.4751e-05 deg
M 301.24054305558 1.8594e-05 deg
tp 2459211.473602950863
(2020-Dec-27.97360295)
6.7196e-05 TDB
period 1292.566354623587
3.54
6.4612e-06
1.769e-08
d
yr
n .2785156821638275 1.3922e-09 deg/d
Q 2.606420526519491 8.6859e-09 au
  Orbit Determination Parameters
   # obs. used (total)      611  
   data-arc span      21863 days (59.86 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54483  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 10:01:06  

Additional Information
 Earth MOID = 1.04108 au 
 Jupiter MOID = 2.84281 au 
 T_jup = 3.559 
[ 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 15.9   n/a MPO432683  

117908 (4104 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

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1921-Jul-11 01:51 < 00:01 Iris 0.0440219857404649 0.0440154363580239 0.0440285351342045 3.45439047111911 3.45439043331562 2422881.576930352 0.815711271504301 328.396993396161 62.5318318436939 -6.43805123608348 23145.9696395653 T 18 CATAB v2.0f-lin.ifort 2020-Aug-25 10:01:22 2020-Aug-25 10:01
1946-Jan-01 15:54 < 00:01 Hebe 0.0496019395780132 0.0495970070831856 0.049606872083214 4.95767588482447 4.95767585954426 2431822.162481795 0.900468972823318 248.48280050714 30.5468804240649 8.39652004006297 46141.350615227 T 18 CATAB v2.0f-lin.ifort 2020-Aug-25 10:01:22 2020-Aug-25 10:01
2168-Nov-06 22:35 < 00:01 Hebe 0.047518337576342 0.047508139976559 0.0475285353804359 5.16703094192666 5.16703091660715 2513216.441049735 0.879342014346413 531.695833183316 40.9587685113926 -17.0981866768104 52581.0408579752 T 18 CATAB v2.0f-lin.ifort 2020-Aug-25 10:01:22 2020-Aug-25 10:01

Alternate Designations
 4104 P-L = 1999 TL32 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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