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52457 Enquist (1995 AE4)
Classification: Main-belt Asteroid          SPK-ID: 2052457
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2288854887389789 3.054e-08  
a 2.570070831215347 9.4892e-09 au
q 1.981818912918828 8.0486e-08 au
i 5.720945746556391 3.353e-06 deg
node 92.38210982365081 4.2083e-05 deg
peri 298.2360650935387 4.3285e-05 deg
M 153.9905899386469 1.1853e-05 deg
tp 2458556.764072973081
(2019-Mar-14.26407297)
4.7228e-05 TDB
period 1504.929189647386
4.12
8.3347e-06
2.282e-08
d
yr
n .2392139128382182 1.3248e-09 deg/d
Q 3.158322749511865 1.1661e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2302  
   data-arc span      18756 days (51.35 yr)  
   first obs. used      1969-11-15  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46193  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 06:18:31  

Additional Information
 Earth MOID = .994188 au 
 Jupiter MOID = 2.29928 au 
 T_jup = 3.386 
[ 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 14.56   n/a E2021B10  
diameter diameter 7.983 km 0.050 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.045   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

52457 Enquist           Discovered 1995 Jan. 2 by E. W. Elst at Caussols.
Anna Enquist (b. 1945) is a Dutch author and poet, who studied psycho-analysis at Leiden and piano at the conservatory of Den Haag. Her first novel The Masterpiece (1994), based on Mozart's Don Giovanni, established her fame as a novelist. Music and psycho-analysis, as well as family tragedy, are the major themes of her work.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2014-09-09Last Updated: 2014-11-10

Alternate Designations
 1995 AE4 = 1969 VJ2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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