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43542 (2001 EC27)
Classification: Main-belt Asteroid          SPK-ID: 2043542
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2147954041764235 4.4541e-08  
a 2.738418691653706 1.3402e-08 au
q 2.150218941975675 1.239e-07 au
i 6.301311718629729 4.7858e-06 deg
node 168.0224516025229 4.3027e-05 deg
peri 180.0489023246702 4.502e-05 deg
M 303.7512827439489 1.6283e-05 deg
tp 2459459.117747471538
(2021-Sep-01.61774747)
7.6095e-05 TDB
period 1655.191329358498
4.53
1.2151e-05
3.327e-08
d
yr
n .2174975144048907 1.5966e-09 deg/d
Q 3.326618441331737 1.628e-08 au
  Orbit Determination Parameters
   # obs. used (total)      819  
   data-arc span      14642 days (40.09 yr)  
   first obs. used      1980-08-04  
   last obs. used      2020-09-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54533  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:20:43  

Additional Information
 Earth MOID = 1.14192 au 
 Jupiter MOID = 2.10573 au 
 T_jup = 3.309 
[ 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 14.79   n/a E2021B10  
rotation period rot_per 3.021 h n/a LCDB (Rev. 2020-October); 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.]

43542 (2001 EC27)          Discovered 2001-Mar-02 by LONEOS at Anderson Mesa
Reference: 20020624/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2001 EC27 = 1980 PV4 = 1998 MA31 = 2000 AV105 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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