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46456 (4140 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2046456
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1718211237490641 3.7803e-08  
a 2.553540809525507 8.1689e-09 au
q 2.11478855809374 9.9013e-08 au
i 13.64225038879233 4.2217e-06 deg
node 186.2526973169997 1.1975e-05 deg
peri 200.3365513839731 1.5811e-05 deg
M 207.2915093563717 1.1593e-05 deg
tp 2459632.727402091023
(2022-Feb-22.22740209)
5.0035e-05 TDB
period 1490.433595365151
4.08
7.152e-06
1.958e-08
d
yr
n .241540449114609 1.1591e-09 deg/d
Q 2.992293060957274 9.5725e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1749  
   data-arc span      21816 days (59.73 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46812  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 21:40:46  

Additional Information
 Earth MOID = 1.12255 au 
 Jupiter MOID = 2.47446 au 
 T_jup = 3.379 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.2   n/a MPO267860  
rotation period rot_per 5.197 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

46456 (4140 P-L)          Discovered 1960-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 4140 P-L = 2001 QR29 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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