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344047 (4331 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2344047
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2022115466422983 5.2805e-08  
a 2.192469704294233 1.0096e-08 au
q 1.749127014422514 1.1837e-07 au
i 1.81876199954035 6.8939e-06 deg
node 334.1733203810483 0.00015316 deg
peri 27.76841928115487 0.00015458 deg
M 139.0464730837417 1.9683e-05 deg
tp 2458542.509673594922
(2019-Feb-28.00967359)
6.334e-05 TDB
period 1185.765549094726
3.25
8.1906e-06
2.242e-08
d
yr
n .3036013318778256 2.0971e-09 deg/d
Q 2.635812394165952 1.2138e-08 au
  Orbit Determination Parameters
   # obs. used (total)      192  
   data-arc span      21680 days (59.36 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57971  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 22:59:54  

Additional Information
 Earth MOID = .746536 au 
 Jupiter MOID = 2.82043 au 
 T_jup = 3.644 
[ 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 18.2   n/a MPO245808  

344047 (4331 P-L)          Discovered 1960-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20121029/Numbers.arcLast Updated: 2012-11-08

[ show close-approach data ]
Alternate Designations
 4331 P-L = 1999 TB135 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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