“(16960) 1998 QS52”的意思、由来-开放百科全书

The body's observation arc begins with a precovery taken at the Siding Spring Observatory in June 1983, more than 15 years prior to its official discovery observation at Socorro.^[2]

Close approaches

With an absolute magnitude of 14.3, {{mp|1998 QS|52}} is one of the brightest and largest known potentially hazardous asteroid (see PHA-list).^[17] It has an Earth minimum orbital intersection distance of {{convert |0.0144 |AU |km |abbr=on |lk=off |sigfig=3}}, which corresponds to 5.6 lunar distances. Its eccentric orbit leads to close approaches with Mercury and Venus and carries it beyond the asteroid belt but not as far as to the orbit of Jupiter (>4.9 AU). It is therefore also a Venus- and Mars-crossing asteroid.

Physical characteristics

In the SMASS classification, {{mp|1998 QS|52}} is a Sq-subtype, that transitions between the stony S- and Q-type asteroids. Observers at the NASA Infrared Telescope Facility have also characterized this body as an Sr-type, which transitions to the rare R-type asteroids.^[12]

Rotation period

In 2008, two rotational lightcurves of {{mp|1998 QS|52}} were obtained independently from photometric observations by Brian Warner at the Palmer Divide Observatory and by Brian Skiff during the Lowell Observatory Near-Earth Asteroid Photometric Survey (NEAPS) . Lightcurve analysis gave a rotation period of 5.789 and 5.8 hours with a brightness amplitude of 0.24 and 1.4 magnitude, respectively ({{small|U=2/2}}).^[6]^[9] An alternative period solution of 2.9 hours – or half of the above period – is also possible, though considered less likely by Warner.^[7]{{efn|name=lightcurve-plot-Warner}}

Diameter and albedo

Numbering and naming

This minor planet was numbered by the Minor Planet Center on 13 September 2000.^[31] As of 2018, it has not been named.^[2]

Notes

References

1. ^¹²³⁴⁵⁶{{cite web |title = 16960 (1998 QS52) |work = Minor Planet Center |url = https://www.minorplanetcenter.net/db_search/show_object?object_id=16960 |accessdate = 17 January 2018}}
2. ^¹²{{cite web |title = List of the Potentially Hazardous Asteroids (PHAs) |work = Minor Planet Center |url = https://www.minorplanetcenter.net/iau/lists/t_phas.html |accessdate = 18 January 2018}}
3. ^¹{{cite web |title = MPC/MPO/MPS Archive |work = Minor Planet Center |url = http://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html |accessdate = 24 February 2018}}
4. ^¹²³⁴⁵⁶{{cite web |title = LCDB Data for (16960) |publisher = Asteroid Lightcurve Database (LCDB) |url = http://www.minorplanet.info/PHP/GenerateALCDEFPage_Local.php?AstInfo=16960%7C |accessdate = 17 January 2018}}
5. ^¹²{{Cite journal |author = Warner, Brian D. |date = January 2009 |title = Asteroid Lightcurve Analysis at the Palmer Divide Observatory: 2008 May - September |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2009MPBu...36....7W |journal = The Minor Planet Bulletin |volume = 36 |issue = 1 |pages = 7–13 |issn = 1052-8091 |bibcode = 2009MPBu...36....7W |access-date= 17 January 2018}}
6. ^¹²{{Cite journal |first1 = Brian A. |last1 = Skiff |first2 = Edward |last2 = Bowell |first3 = Bruce W. |last3 = Koehn |first4 = Jason J. |last4 = Sanborn |first5 = Kyle P. |last5 = McLelland |first6 = Brian D. |last6 = Warner |date = July 2012 |title = Lowell Observatory Near-Earth Asteroid Photometric Survey (NEAPS) - 2008 May through 2008 December |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2012MPBu...39..111S |journal = The Minor Planet Bulletin |volume = 39 |issue = 3 |pages = 111–130 |issn = 1052-8091 |bibcode = 2012MPBu...39..111S |access-date= 17 January 2018}}
7. ^¹²{{Cite journal |display-authors = 6 |first1 = M. |last1 = Popescu |first2 = M. |last2 = Birlan |first3 = R. |last3 = Binzel |first4 = P. |last4 = Vernazza |first5 = A. |last5 = Barucci |first6 = D. A. |last6 = Nedelcu |first7 = F. |last7 = DeMeo |first8 = M. |last8 = Fulchignoni |date = November 2011 |title = Spectral properties of eight near-Earth asteroids |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2011A&A...535A..15P |journal = Astronomy and Astrophysics |volume = 535 |page = 15 |bibcode = 2011A&A...535A..15P |doi = 10.1051/0004-6361/201117118 |access-date= 17 January 2018}}
8. ^¹{{cite journal |display-authors = 6 |first1 = Peter |last1 = Veres |first2 = Robert |last2 = Jedicke |first3 = Alan |last3 = Fitzsimmons |first4 = Larry |last4 = Denneau |first5 = Mikael |last5 = Granvik |first6 = Bryce |last6 = Bolin |first7 = Serge |last7 = Chastel |first8 = Richard J. |last8 = Wainscoat |first9 = William S. |last9 = Burgett |first10 = Kenneth C. |last10 = Chambers |first11 = Heather |last11 = Flewelling |first12 = Nick |last12 = Kaiser |first13 = Eugen A. |last13 = Magnier |first14 = Jeff S. |last14 = Morgan |first15 = Paul A. |last15 = Price |first16 = John L. |last16 = Tonry |first17 = Christopher |last17 = Waters |date = November 2015 |title = Absolute magnitudes and slope parameters for 250,000 asteroids observed by Pan-STARRS PS1 - Preliminary results |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015Icar..261...34V |journal = Icarus |volume = 261 |pages = 34–47 |bibcode = 2015Icar..261...34V |doi = 10.1016/j.icarus.2015.08.007 |arxiv = 1506.00762 |access-date= 17 January 2018}}

词条	(16960) 1998 QS52
释义	Orbit and classification Close approaches Physical characteristics Rotation period Diameter and albedo Numbering and naming Notes References External links {{DISPLAYTITLE:{{mp\|(16960) 1998 QS\|52}}}}{{Infobox planet \| minorplanet = yes \| name = (16960) {{mp\|1998 QS\|52}} \| background = #FFC2E0 \| image = \| image_size = \| caption = \| discovery_ref = \| discoverer = LINEAR \| discovery_site = Lincoln Lab's ETS \| discovered = 25 August 1998 \| mpc_name = (16960) {{mp\|1998 QS\|52}} \| alt_names = {{mp\|1998 QS\|52}} \| pronounced = \| named_after = \| mp_category = {{nowrap\|Apollo{{·}}NEO{{·}}PHA ^[2]}} \| orbit_ref = \| epoch = 4 September 2017 (JD 2458000.5) \| uncertainty = 0 \| observation_arc = 34.36 yr (12,551 days) \| aphelion = 4.0928 AU \| perihelion = 0.3133 AU \| semimajor = 2.2030 AU \| eccentricity = 0.8578 \| period = 3.27 yr (1,194 days) \| mean_anomaly = 244.09° \| mean_motion = {{Deg2DMS\|0.3014\|sup=ms}} / day \| inclination = 17.546° \| asc_node = 260.48° \| arg_peri = 242.95° \| moid = 0.0144 AU (5.6 LD) \| mean_diameter = 4.10 km {{small\|(calculated)}}^[6] \| rotation = {{nowrap\|{{val\|2.900\|0.001}} h {{small\|(alternative)}}^[7]{{efn\|name=lightcurve-plot-Warner}}}} {{val\|5.789\|0.001}} h^[6] {{val\|5.8\|0.1}} h^[9] \| albedo = 0.20 {{small\|(assumed)}}^[6] \| spectral_type = SMASS {{=}} Sq {{·}}Sr ^[12] \| abs_magnitude = 14.3^[6]{{·}}{{val\|14.79\|0.23}}^[15] }}{{mp\|(16960) 1998 QS\|52}}, provisional designation {{mp\|1998 QS\|52}}, is a stony asteroid on a highly eccentric orbit, classified as near-Earth object and potentially hazardous asteroid of the Apollo group, approximately {{convert\|4.1\|km\|mi\|sigfig=2\|sp=us}} in diameter. It was discovered on 25 August 1998, by astronomers of the LINEAR program at Lincoln Laboratory's Experimental Test Site near Socorro, New Mexico, in the United States.^[2] This asteroid is one of the largest potentially hazardous asteroid known to exist.^[17] Orbit and classification {{mp\|1998 QS\|52}} is a member of the dynamical Apollo group,^[2] which are Earth-crossing asteroids. Apollo asteroids are the largest subgroup of near-Earth objects. It orbits the Sun at a distance of 0.31–4.1 AU once every 3 years and 3 months (1,194 days; semi-major axis of 2.20 AU). Its orbit has an exceptionally high eccentricity of 0.86 and an inclination of 18° with respect to the ecliptic. The body's observation arc begins with a precovery taken at the Siding Spring Observatory in June 1983, more than 15 years prior to its official discovery observation at Socorro.^[2] Close approaches With an absolute magnitude of 14.3, {{mp\|1998 QS\|52}} is one of the brightest and largest known potentially hazardous asteroid (see PHA-list).^[17] It has an Earth minimum orbital intersection distance of {{convert \|0.0144 \|AU \|km \|abbr=on \|lk=off \|sigfig=3}}, which corresponds to 5.6 lunar distances. Its eccentric orbit leads to close approaches with Mercury and Venus and carries it beyond the asteroid belt but not as far as to the orbit of Jupiter (>4.9 AU). It is therefore also a Venus- and Mars-crossing asteroid. Physical characteristics In the SMASS classification, {{mp\|1998 QS\|52}} is a Sq-subtype, that transitions between the stony S- and Q-type asteroids. Observers at the NASA Infrared Telescope Facility have also characterized this body as an Sr-type, which transitions to the rare R-type asteroids.^[12] Rotation period In 2008, two rotational lightcurves of {{mp\|1998 QS\|52}} were obtained independently from photometric observations by Brian Warner at the Palmer Divide Observatory and by Brian Skiff during the Lowell Observatory Near-Earth Asteroid Photometric Survey (NEAPS) . Lightcurve analysis gave a rotation period of 5.789 and 5.8 hours with a brightness amplitude of 0.24 and 1.4 magnitude, respectively ({{small\|U=2/2}}).^[6]^[9] An alternative period solution of 2.9 hours – or half of the above period – is also possible, though considered less likely by Warner.^[7]{{efn\|name=lightcurve-plot-Warner}} Diameter and albedo {{mp\|1998 QS\|52}} has not been observed by any of the space-based surveys such as IRAS, Akari or the Wide-field Infrared Survey Explorer. The Collaborative Asteroid Lightcurve Link assumes a stony standard albedo of 0.20 for its surface, and calculates a diameter of 4.10 kilometers based on an absolute magnitude of 14.3.^[6] Numbering and naming This minor planet was numbered by the Minor Planet Center on 13 September 2000.^[31] As of 2018, it has not been named.^[2] Notes {{notelist\|refs={{efn\|name=lightcurve-plot-Warner\|1=Lightcurve plot of {{mp\|(16960) 1998 QS\|52}}: alternative period solution of {{val\|2.900\|0.001}} hours with a brightness amplitude of {{val\|0.24\|0.02}} mag. Quality Code of 2. Summary figures at the LCDB}} }} References 1. ^¹²³⁴⁵⁶{{cite web \|title = 16960 (1998 QS52) \|work = Minor Planet Center \|url = https://www.minorplanetcenter.net/db_search/show_object?object_id=16960 \|accessdate = 17 January 2018}} 2. ^¹²{{cite web \|title = List of the Potentially Hazardous Asteroids (PHAs) \|work = Minor Planet Center \|url = https://www.minorplanetcenter.net/iau/lists/t_phas.html \|accessdate = 18 January 2018}} 3. ^¹{{cite web \|title = MPC/MPO/MPS Archive \|work = Minor Planet Center \|url = http://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html \|accessdate = 24 February 2018}} 4. ^¹²³⁴⁵⁶{{cite web \|title = LCDB Data for (16960) \|publisher = Asteroid Lightcurve Database (LCDB) \|url = http://www.minorplanet.info/PHP/GenerateALCDEFPage_Local.php?AstInfo=16960%7C \|accessdate = 17 January 2018}} 5. ^¹²{{Cite journal \|author = Warner, Brian D. \|date = January 2009 \|title = Asteroid Lightcurve Analysis at the Palmer Divide Observatory: 2008 May - September \|url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2009MPBu...36....7W \|journal = The Minor Planet Bulletin \|volume = 36 \|issue = 1 \|pages = 7–13 \|issn = 1052-8091 \|bibcode = 2009MPBu...36....7W \|access-date= 17 January 2018}} 6. ^¹²{{Cite journal \|first1 = Brian A. \|last1 = Skiff \|first2 = Edward \|last2 = Bowell \|first3 = Bruce W. \|last3 = Koehn \|first4 = Jason J. \|last4 = Sanborn \|first5 = Kyle P. \|last5 = McLelland \|first6 = Brian D. \|last6 = Warner \|date = July 2012 \|title = Lowell Observatory Near-Earth Asteroid Photometric Survey (NEAPS) - 2008 May through 2008 December \|url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2012MPBu...39..111S \|journal = The Minor Planet Bulletin \|volume = 39 \|issue = 3 \|pages = 111–130 \|issn = 1052-8091 \|bibcode = 2012MPBu...39..111S \|access-date= 17 January 2018}} 7. ^¹²{{Cite journal \|display-authors = 6 \|first1 = M. \|last1 = Popescu \|first2 = M. \|last2 = Birlan \|first3 = R. \|last3 = Binzel \|first4 = P. \|last4 = Vernazza \|first5 = A. \|last5 = Barucci \|first6 = D. A. \|last6 = Nedelcu \|first7 = F. \|last7 = DeMeo \|first8 = M. \|last8 = Fulchignoni \|date = November 2011 \|title = Spectral properties of eight near-Earth asteroids \|url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2011A&A...535A..15P \|journal = Astronomy and Astrophysics \|volume = 535 \|page = 15 \|bibcode = 2011A&A...535A..15P \|doi = 10.1051/0004-6361/201117118 \|access-date= 17 January 2018}} 8. ^¹{{cite journal \|display-authors = 6 \|first1 = Peter \|last1 = Veres \|first2 = Robert \|last2 = Jedicke \|first3 = Alan \|last3 = Fitzsimmons \|first4 = Larry \|last4 = Denneau \|first5 = Mikael \|last5 = Granvik \|first6 = Bryce \|last6 = Bolin \|first7 = Serge \|last7 = Chastel \|first8 = Richard J. \|last8 = Wainscoat \|first9 = William S. \|last9 = Burgett \|first10 = Kenneth C. \|last10 = Chambers \|first11 = Heather \|last11 = Flewelling \|first12 = Nick \|last12 = Kaiser \|first13 = Eugen A. \|last13 = Magnier \|first14 = Jeff S. \|last14 = Morgan \|first15 = Paul A. \|last15 = Price \|first16 = John L. \|last16 = Tonry \|first17 = Christopher \|last17 = Waters \|date = November 2015 \|title = Absolute magnitudes and slope parameters for 250,000 asteroids observed by Pan-STARRS PS1 - Preliminary results \|url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015Icar..261...34V \|journal = Icarus \|volume = 261 \|pages = 34–47 \|bibcode = 2015Icar..261...34V \|doi = 10.1016/j.icarus.2015.08.007 \|arxiv = 1506.00762 \|access-date= 17 January 2018}} ^[1]^[2]^[3]^[4]^[5]^[6]^[7]^[8] }} External links Asteroid Lightcurve Database (LCDB), query form (info) [https://books.google.com/books?id=aeAg1X7afOoC&pg Dictionary of Minor Planet Names], Google books Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend Discovery Circumstances: Numbered Minor Planets (15001)-(20000) – Minor Planet Center {{JPL small body\|id=2016960}} {{Minor planets navigator \| \|number=16960 \|PageName={{mp\|(16960) 1998 QS\|52}} \| }}{{Small Solar System bodies}}{{DEFAULTSORT:1998 QS52}} 6 : Apollo asteroids\|Discoveries by LINEAR\|Potentially hazardous asteroids\|Venus-crosser asteroids\|Sq-type asteroids (SMASS)\|Astronomical objects discovered in 1998
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Orbit and classification