2074 Shoemaker

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2074 Shoemaker
Discovery 
SMASS = Sa [1] · S[3]
13.80[6] · 13.9[1][3] · 14.24[5] · 14.28±0.36[13]

2074 Shoemaker, provisional designation 1974 UA, is a stony Hungaria

Eugene Shoemaker.[2]

Orbit and classification

Shoemaker is a bright member of the dynamical

Mars-crossing asteroid as it crosses the orbit of Mars at 1.666 AU.[1]

The body's observation arc begins with a precovery taken at Palomar in April 1954, more than 20 years prior to its official discovery observation.[4]

Physical characteristics

In the

SMASS classification, Shoemaker is a Sa-subtype, that transitions form the common stony S-type asteroids to the A-type asteroids.[1]

Rotation period

Several rotational

Suspected binary

In October 2003, photometric observations of Shoemaker by

719) in 2015, did not mention any mutual events.[9]

In June 2017, Warner measured a rotation period of 2.5331±0.0002 hours and an orbital period for the secondary of 44.28 hours at his CS3-Palmer Divide Station in California.[a][b] The binary nature of Shoemaker remains unconfirmed.

Diameter and albedo

According to the survey carried out by the

albedo between 0.41 and 0.52, respectively.[5][6] The Collaborative Asteroid Lightcurve Link assumes a standard albedo for stony asteroids of 0.20 and calculates a diameter of 4.93 kilometers based on an absolute magnitude of 13.9.[3]

Naming

This

impact craters and his role in the lunar Ranger, Surveyor and Apollo programs.[2]

The naming was also proposed by

M.P.C. 4548).[14]

Notes

  1. ^ a b c Warner (2018b) web. Not yet in ADS. Observation 30 June 2017. Rotation period of 2.5331±0.0002 hours with a brightness amplitude of 0.09±0.01 mag. Quality code of 3. Summary figures for (2074) Shoemaker at Collaborative Asteroid Lightcurve Link (CALL)
  2. ^ a b Lightcurve plot of (2074) Shoemaker, Warner (2017), rotation period: 2.5331 hours; and second period (P2) of 44.28 hours. Quality code of 3.
  3. ^ Lightcurve plot of (2074) Shoemaker, Warner (2015), period: of 2.809 and 2.515 hours. Quality code of 2.

References

  1. ^ a b c d e f g h "JPL Small-Body Database Browser: 2074 Shoemaker (1974 UA)" (2017-07-02 last obs.). Jet Propulsion Laboratory. Retrieved 6 September 2017.
  2. ^ .
  3. ^ a b c d e f g h "LCDB Data for (2074) Shoemaker". Asteroid Lightcurve Database (LCDB). Retrieved 6 September 2017.
  4. ^ a b c "2074 Shoemaker (1974 UA)". Minor Planet Center. Retrieved 6 September 2017.
  5. ^ .
  6. ^ . Retrieved 6 September 2017.
  7. ^
    ISSN 1052-8091. Retrieved 6 September 2017.{{cite journal}}: CS1 maint: multiple names: authors list (link
    )
  8. ^ . Retrieved 6 September 2017.
  9. ^ . Retrieved 6 September 2017.
  10. . Retrieved 6 September 2017.
  11. . Retrieved 6 September 2017.
  12. ^ . Retrieved 6 September 2017.
  13. . Retrieved 6 September 2017.
  14. .

External links