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13870 (2158 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2013870
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09928663259085531 3.5552e-08  
a 2.444782633809127 9.1098e-09 au
q 2.202048398681617 8.5498e-08 au
i 6.025415699661925 3.6971e-06 deg
node 205.8301389174056 3.5396e-05 deg
peri 234.6400880112123 3.9956e-05 deg
M 219.8006462766266 2.0598e-05 deg
tp 2459744.253813371232
(2022-Jun-13.75381337)
8.1498e-05 TDB
period 1396.23591418174
3.82
7.8041e-06
2.137e-08
d
yr
n .2578360836757138 1.4411e-09 deg/d
Q 2.687516868936637 1.0014e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1427  
   data-arc span      21879 days (59.90 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-08-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49808  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 00:11:23  

Additional Information
 Earth MOID = 1.22327 au 
 Jupiter MOID = 2.52435 au 
 T_jup = 3.485 
[ 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 14.94   n/a MPCxxxxx  

13870 (2158 P-L)          Discovered 1960-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20000222/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2158 P-L = 1997 ML6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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