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Minor Planet Center

January 23, 2023

The Minor Planet Center (MPC) is the official body for observing and reporting on minor planets under the auspices of the International Astronomical Union (IAU). Founded in 1947, it operates at the Smithsonian Astrophysical Observatory.

Function

The Minor Planet Center is the official worldwide organization in charge of collecting observational data for minor planets (such as asteroids), calculating their orbits and publishing this information via the Minor Planet Circulars. Under the auspices of the International Astronomical Union (IAU), it operates at the Smithsonian Astrophysical Observatory, which is part of the Center for Astrophysics along with the Harvard College Observatory.[1]

The MPC runs a number of free online services for observers to assist them in observing minor planets and comets. The complete catalogue of minor planet orbits (sometimes referred to as the "Minor Planet Catalogue") may also be freely downloaded. In addition to astrometric data, the MPC collects light curve photometry of minor planets. A key function of the MPC is helping observers coordinate follow up observations of possible near-Earth objects (NEOs) via its NEO web form and blog, the Near-Earth Object Confirmation Page.[2][3] The MPC is also responsible for identifying, and alerting to, new NEOs with a risk of impacting Earth in the few weeks following their discovery (see Potentially hazardous objects and § Videos).[1]

History

The Minor Planet Center was set up at the University of Cincinnati in 1947, under the direction of Paul Herget.[4][5]: 63  Upon Herget's retirement on June 30, 1978,[5]: 67  the MPC was moved to the SAO, under the direction of Brian G. Marsden.[5]: 67  From 2006 to 2015,[6] the director of the MPC was Timothy Spahr,[7] who oversaw a staff of five. From 2015 to 2021, the Minor Planet Center was headed by interim director Matthew Holman.[8] Under his leadership, the MPC experienced a significant period of reorganization and growth, doubling both its staff size and the volume of observations processed per year. Upon Holman's resignation on February 9, 2021 (announced on February 19, 2021) Matthew Payne became acting director of the MPC.[9][10]

Directors

Periodical publications

"Minor Planet Circulars" and "Minor Planet Electronic Circulars" redirect here. For the publication by ALPO, see The Minor Planet Bulletin.

The MPC periodically releases astrometric observations of minor planets, as well as of comets and natural satellites. These publications are the Minor Planet Circulars (MPCs), the Minor Planet Electronic Circulars (MPECs), and the Minor Planet Supplements (MPSs and MPOs).[11] An extensive archive of publications in a PDF format is available at the Minor Planet Center's website. The archive's oldest publication dates back to 1 November 1977 (MPC 4937–5016).[12]

  • Minor Planet Circulars (M.P.C. or MPCs), established 1947, is a scientific journal that is generally published by the Minor Planet Center on the date of each full moon, when the number of reported observations are minimal due to the brighter night sky. The Circulars contain astrometric observations, orbits and ephemerides of minor planets, comets and certain natural satellites. The astrometric observations of comets are published in full, while the minor planet observations are summarised by observatory code (the full observations now being given in the Minor Planet Circulars Supplement). New numberings and namings of minor planets (also see Naming of Minor Planets), as well as numberings of periodic comets and natural satellites, are announced in the Circulars. New orbits for comets and natural satellites appear in the Circulars; new orbits for minor planets appear in the Minor Planets and Comets Orbit Supplement (see below).
  • The Minor Planet Electronic Circulars (MPECs) are published by the Minor Planet Center. They generally contain positional observations and orbits of unusual minor planets and all comets. Monthly lists of observable unusual objects, observable distant objects, observable comets and the critical list of numbered minor planets also appear on these circulars. Daily Orbit Update MPECs, issued every day, contain new identifications and orbits of minor planets, obtained over the previous 24 hours.
  • The Minor Planets and Comets Supplement (MPS) is published on behalf of IAU's Division F (Planetary Systems and Bioastronomy)[13] by the Minor Planet Center.
  • The Minor Planets and Comets Orbit Supplement (MPO) is published on behalf of IAU's Division F by the Minor Planet Center.

Natural Satellites Ephemeris Service

The Natural Satellites Ephemeris Service is an online service of the Minor Planet Center. The service provides "ephemerides, orbital elements and residual blocks for the outer irregular satellites of the giant planets".[1]

See also

References

  1. ^ a b Centres: Minor Planet Center. International Astronomical Union. Retrieved 20 April 2016.
  2. ^ Marsden, B. G.; Williams, G. V. (February–March 1998). "The NEO Confirmation Page". Planetary and Space Science. 46 (2–3): 299. Bibcode:1998P&SS...46..299M. doi:10.1016/S0032-0633(96)00153-5.
  3. ^ . NEOCP Blog. Minor Planet Center. Archived from the original on 2016-04-13. Retrieved 20 April 2016.
  4. ^ Donald E. Osterbrock & P. Kenneth Seidelmann (1987). "Paul Herget: 1908–1981" (PDF). Biographical Memoirs of the National Academy of Sciences. Vol. 57. National Academies Press. pp. 64–65. ISBN 9780585272801. OCLC 45729798.
  5. ^ a b c Brian G. Marsden (July 1980). "The Minor Planet Center". Celestial Mechanics. 22 (1): 63–71. Bibcode:1980CeMec..22...63M. doi:10.1007/BF01228757. S2CID 119526916.
  6. ^ Galoche, J.L. (6 January 2015). . The Daily Minor Planet Blog. Minor Planet Center. Archived from the original on 2015-08-14. Retrieved 20 April 2016.
  7. ^ Gareth V. Williams (18 November 2010). "MPEC 2010-W10: Brian Marsden (1937 Aug. 5 – 2010 Nov. 18)". Minor Planet Electronic Circular.
  8. ^ Galoche, J.L. (4 February 2015). . The Daily Minor Planet Blog. Minor Planet Center. Archived from the original on 2015-05-26. Retrieved 1 December 2015.
  9. ^ "New acting MPC Director – MPEC 2021-D60". Minor Planet Electronic Circular. Minor Planet Center. 19 February 2021. Retrieved 22 February 2021.
  10. ^ "Staff – Matthew Payne, MPC Acting Director". Minor Planet Center. Retrieved 22 February 2021.
  11. ^ "MPC: Publications". Minor Planet Center. Retrieved 6 May 2016.
  12. ^ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 6 May 2016.
  13. ^ "Division F Planetary Systems and Astrobiology". International Astronomical Union. Retrieved 2017-11-07.

External links

  • Official website
  • MPC/MPO/MPS Archive, all published circulars since 1977 (downloadable as PDF)
  • The MPC Orbit (MPCORB) Database
  • , Matthew J. Holman, 8 November 2015
  • Recent MPECs, list of most-recently published Minor Planet Electronic Circulars

Videos

  • Asteroid Hazards, Part 1: What Makes an Asteroid a Hazard? on YouTube (min. 6:04)
  • Asteroid Hazards, Part 2: The Challenge of Detection on YouTube (min. 7:14)
  • Asteroid Hazards, Part 3: Finding the Path on YouTube (min. 5:38)

January 23, 2023
minor, planet, center, official, body, observing, reporting, minor, planets, under, auspices, international, astronomical, union, founded, 1947, operates, smithsonian, astrophysical, observatory, contents, function, history, directors, periodical, publications. The Minor Planet Center MPC is the official body for observing and reporting on minor planets under the auspices of the International Astronomical Union IAU Founded in 1947 it operates at the Smithsonian Astrophysical Observatory Contents 1 Function 2 History 2 1 Directors 3 Periodical publications 4 Natural Satellites Ephemeris Service 5 See also 6 References 7 External links 7 1 VideosFunction EditThe Minor Planet Center is the official worldwide organization in charge of collecting observational data for minor planets such as asteroids calculating their orbits and publishing this information via the Minor Planet Circulars Under the auspices of the International Astronomical Union IAU it operates at the Smithsonian Astrophysical Observatory which is part of the Center for Astrophysics along with the Harvard College Observatory 1 The MPC runs a number of free online services for observers to assist them in observing minor planets and comets The complete catalogue of minor planet orbits sometimes referred to as the Minor Planet Catalogue may also be freely downloaded In addition to astrometric data the MPC collects light curve photometry of minor planets A key function of the MPC is helping observers coordinate follow up observations of possible near Earth objects NEOs via its NEO web form and blog the Near Earth Object Confirmation Page 2 3 The MPC is also responsible for identifying and alerting to new NEOs with a risk of impacting Earth in the few weeks following their discovery see Potentially hazardous objects and Videos 1 History EditThe Minor Planet Center was set up at the University of Cincinnati in 1947 under the direction of Paul Herget 4 5 63 Upon Herget s retirement on June 30 1978 5 67 the MPC was moved to the SAO under the direction of Brian G Marsden 5 67 From 2006 to 2015 6 the director of the MPC was Timothy Spahr 7 who oversaw a staff of five From 2015 to 2021 the Minor Planet Center was headed by interim director Matthew Holman 8 Under his leadership the MPC experienced a significant period of reorganization and growth doubling both its staff size and the volume of observations processed per year Upon Holman s resignation on February 9 2021 announced on February 19 2021 Matthew Payne became acting director of the MPC 9 10 Directors Edit 1947 1978 Paul Herget 1978 2006 Brian Marsden 2006 2015 Timothy Spahr 2015 2021 Matthew Holman 2021 pres Matthew PaynePeriodical publications Edit Minor Planet Circulars and Minor Planet Electronic Circulars redirect here For the publication by ALPO see The Minor Planet Bulletin The MPC periodically releases astrometric observations of minor planets as well as of comets and natural satellites These publications are the Minor Planet Circulars MPCs the Minor Planet Electronic Circulars MPECs and the Minor Planet Supplements MPSs and MPOs 11 An extensive archive of publications in a PDF format is available at the Minor Planet Center s website The archive s oldest publication dates back to 1 November 1977 MPC 4937 5016 12 Minor Planet Circulars M P C or MPCs established 1947 is a scientific journal that is generally published by the Minor Planet Center on the date of each full moon when the number of reported observations are minimal due to the brighter night sky The Circulars contain astrometric observations orbits and ephemerides of minor planets comets and certain natural satellites The astrometric observations of comets are published in full while the minor planet observations are summarised by observatory code the full observations now being given in the Minor Planet Circulars Supplement New numberings and namings of minor planets also see Naming of Minor Planets as well as numberings of periodic comets and natural satellites are announced in the Circulars New orbits for comets and natural satellites appear in the Circulars new orbits for minor planets appear in the Minor Planets and Comets Orbit Supplement see below The Minor Planet Electronic Circulars MPECs are published by the Minor Planet Center They generally contain positional observations and orbits of unusual minor planets and all comets Monthly lists of observable unusual objects observable distant objects observable comets and the critical list of numbered minor planets also appear on these circulars Daily Orbit Update MPECs issued every day contain new identifications and orbits of minor planets obtained over the previous 24 hours The Minor Planets and Comets Supplement MPS is published on behalf of IAU s Division F Planetary Systems and Bioastronomy 13 by the Minor Planet Center The Minor Planets and Comets Orbit Supplement MPO is published on behalf of IAU s Division F by the Minor Planet Center Natural Satellites Ephemeris Service EditThe Natural Satellites Ephemeris Service is an online service of the Minor Planet Center The service provides ephemerides orbital elements and residual blocks for the outer irregular satellites of the giant planets 1 See also EditCentral Bureau for Astronomical Telegrams IAU Circular List of astronomical societies List of minor planet groups List of minor planets List of minor planets Main index Meanings of minor planet namesReferences Edit a b Centres Minor Planet Center International Astronomical Union Retrieved 20 April 2016 Marsden B G Williams G V February March 1998 The NEO Confirmation Page Planetary and Space Science 46 2 3 299 Bibcode 1998P amp SS 46 299M doi 10 1016 S0032 0633 96 00153 5 Real time reporting of NEOCP follow up NEOCP Blog Minor Planet Center Archived from the original on 2016 04 13 Retrieved 20 April 2016 Donald E Osterbrock amp P Kenneth Seidelmann 1987 Paul Herget 1908 1981 PDF Biographical Memoirs of the National Academy of Sciences Vol 57 National Academies Press pp 64 65 ISBN 9780585272801 OCLC 45729798 a b c Brian G Marsden July 1980 The Minor Planet Center Celestial Mechanics 22 1 63 71 Bibcode 1980CeMec 22 63M doi 10 1007 BF01228757 S2CID 119526916 Galoche J L 6 January 2015 Minor Planet Center Director Steps Down The Daily Minor Planet Blog Minor Planet Center Archived from the original on 2015 08 14 Retrieved 20 April 2016 Gareth V Williams 18 November 2010 MPEC 2010 W10 Brian Marsden 1937 Aug 5 2010 Nov 18 Minor Planet Electronic Circular Galoche J L 4 February 2015 Interim Director Appointed to the Minor Planet Center The Daily Minor Planet Blog Minor Planet Center Archived from the original on 2015 05 26 Retrieved 1 December 2015 New acting MPC Director MPEC 2021 D60 Minor Planet Electronic Circular Minor Planet Center 19 February 2021 Retrieved 22 February 2021 Staff Matthew Payne MPC Acting Director Minor Planet Center Retrieved 22 February 2021 MPC Publications Minor Planet Center Retrieved 6 May 2016 MPC MPO MPS Archive Minor Planet Center Retrieved 6 May 2016 Division F Planetary Systems and Astrobiology International Astronomical Union Retrieved 2017 11 07 External links EditOfficial website MPC MPO MPS Archive all published circulars since 1977 downloadable as PDF The MPC Orbit MPCORB Database The Minor Planet Center Status Report Matthew J Holman 8 November 2015 Recent MPECs list of most recently published Minor Planet Electronic CircularsVideos Edit Asteroid Hazards Part 1 What Makes an Asteroid a Hazard on YouTube min 6 04 Asteroid Hazards Part 2 The Challenge of Detection on YouTube min 7 14 Asteroid Hazards Part 3 Finding the Path on YouTube min 5 38 Portals Astronomy Stars Spaceflight Outer space Solar System Education Science Retrieved from https en wikipedia org w index php title Minor Planet Center amp oldid 1125724043, wikipedia, wiki, book, books, library,

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