{{Short description|Main-belt asteroid}} {{Use dmy dates|date=October 2019}} {{Infobox planet | minorplanet = yes | name = 1735 ITA | background = #D6D6D6 | image = 001735-asteroid shape model (1735) ITA.png | image_scale = | caption = Shape model of ''ITA'' from its lightcurve | discovery_ref = <ref name="jpldata" /> | discovered = 10 September 1948 | discoverer = P. F. Shajn | discovery_site = Simeiz Obs. | mpc_name = (1735) ITA | alt_names = {{mp|1948 RJ|1}}{{·}}1929 DA<br />{{mp|1931 RF|1}}{{·}}1934 BC<br />1935 GC{{·}}1937 TN<br />{{mp|1948 TB|1}}{{·}}1948 TK<br />1951 DL{{·}}1951 EY<br />{{mp|1952 HN|2}}{{·}}1952 JB<br />A907 GC | named_after = Institute for Theoretical Astronomy {{small|(USSR)}}<ref name="springer" /> | mp_category = main-belt{{·}}{{small|(outer)}}<ref name="lcdb" /> | orbit_ref = <ref name="jpldata" /> | epoch = 4 September 2017 (JD 2458000.5) | uncertainty = 0 | observation_arc = 109.99 yr (40,173 days) | aphelion = 3.5471 AU | perihelion = 2.7277 AU | semimajor = 3.1374 AU | eccentricity = 0.1306 | period = 5.56 yr (2,030 days) | mean_anomaly = 198.34° | mean_motion = {{Deg2DMS|0.1774|sup=ms}} / day | inclination = 15.608° | asc_node = 9.3378° | arg_peri = 276.02° | dimensions = {{val|61.87|0.65}} km<ref name="Masiero-2012" /><br />61.93 km {{small|(derived)}}<ref name="lcdb" /><br />{{val|62.34|2.4}} km<ref name="SIMPS" /><br />{{val|66.09|1.13}} km<ref name="AKARI" /> | rotation = {{val|12.599|0.003}} h<ref name="geneva-obs" /><br />{{val|12.6|0.1}} h<ref name="geneva-obs" /><br />{{val|12.6103|0.0005}} h<ref name="Hanus-2016a" /> | albedo = 0.0461 {{small|(derived)}}<ref name="lcdb" /><br />{{val|0.051|0.011}}<ref name="Masiero-2012" /><br />{{val|0.070|0.003}}<ref name="AKARI" /><br />{{val|0.0790|0.007}}<ref name="SIMPS" /> | spectral_type = C<ref name="lcdb" /> | abs_magnitude = 9.4<ref name="SIMPS" /><ref name="AKARI" />{{·}}9.90<ref name="Masiero-2012" />{{·}}10.0<ref name="jpldata" /><ref name="lcdb" />{{·}}{{val|10.37|0.78}}<ref name="Veres-2015" /> }}
'''1735 ITA''' (''prov. designation'': {{mp|1948 RJ|1}}) is a carbonaceous asteroid from the outer region of the asteroid belt, approximately 62 kilometers in diameter. It was discovered on 10 September 1948, by Soviet–Russian astronomer Pelageya Shajn at the Simeiz Observatory located on the Crimean peninsula.<ref name="MPC-ITA" /> It was named for the Institute for Theoretical Astronomy (ITA) in what is now Saint Petersburg, Russia.<ref name="springer" />
== Classification and orbit ==
''ITA'' orbits the Sun in the outer main-belt at a distance of 2.7–3.5 AU once every 5 years and 7 months (2,030 days). Its orbit has an eccentricity of 0.13 and an inclination of 16° with respect to the ecliptic.<ref name="jpldata" />
It was first identified as {{mp|A907 GC}} at Heidelberg Observatory in 1907, extending the body's observation arc by 41 years prior to its official discovery observation.<ref name="MPC-ITA" />
== Physical characteristics ==
ITA has been characterized as a carbonaceous C-type asteroid.<ref name="lcdb" />
=== Lightcurves ===
In November 2004, a rotational lightcurve was obtained by French amateur astronomer René Roy, gave a rotation period of 12.599 hours with a brightness variation of 0.27 magnitude ({{small|U=3-}}).<ref name="geneva-obs" /> In March 2007, astronomers Laurent Brunetto and Jean-Gabriel Bosch derived a concurring period of 12.6 hours with and amplitude of 0.40 magnitude ({{small|U=2-}})<ref name="geneva-obs" /> A 2016-published light-curve from the Lowell Photometric Database gave a period of 12.6103 hours ({{small|U=n.a.}}).<ref name="Hanus-2016a" />
=== Diameter and albedo ===
According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite, and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, ''ITA'' measures between 61.87 and 66.09 kilometers in diameter, and its surface has an albedo between 0.051 and 0.079.<ref name="Masiero-2012" /><ref name="SIMPS" /><ref name="AKARI" /> The ''Collaborative Asteroid Lightcurve Link'' derives an albedo of 0.0461 and a diameter of 61.93 kilometers with an absolute magnitude of 10.0.<ref name="lcdb" />
Between 2009 and 2023, 1735 ITA has been observed to occult four stars.
== Naming ==
This minor planet was named in 1979, on the occasion of the 60th anniversary of the founding of the USSR Academy of Sciences{{'}} Institute for Theoretical Astronomy (ITA), in what was then Leningrad.<ref name="springer" /> The official naming citation was published by the Minor Planet Center on 1 June 1980 ({{small|M.P.C. 5357}}).<ref name="MPC-Circulars-Archive" />
== References == {{reflist|30em|refs=
<ref name="jpldata">{{cite web |type = 2017-03-30 last obs. |title = JPL Small-Body Database Browser: 1735 ITA (1948 RJ1) |url = https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001735 |publisher = Jet Propulsion Laboratory |accessdate = 7 June 2017}}</ref>
<ref name="springer">{{cite book |title = Dictionary of Minor Planet Names – (1735) ITA |last = Schmadel | first = Lutz D. |publisher = Springer Berlin Heidelberg |page = 138 |date = 2007 |isbn = 978-3-540-00238-3 |doi = 10.1007/978-3-540-29925-7_1736 |chapter = (1735) Ita }}</ref>
<ref name="MPC-ITA">{{cite web |title = 1735 ITA (1948 RJ1) |work = Minor Planet Center |url = https://www.minorplanetcenter.net/db_search/show_object?object_id=1735 |accessdate = 21 December 2016}}</ref>
<ref name="MPC-Circulars-Archive">{{cite web |title = MPC/MPO/MPS Archive |work = Minor Planet Center |url = https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html |accessdate = 21 December 2016}}</ref>
<ref name="geneva-obs">{{cite web |title = Asteroids and comets rotation curves – (1735) ITA |last = Behrend |first = Raoul |publisher = Geneva Observatory |url = http://obswww.unige.ch/~behrend/page4cou.html#001735 |accessdate = 21 December 2016}}</ref>
<ref name="lcdb">{{cite LCDB|number = 1735 |accessdate = 21 December 2016}}</ref>
<ref name="SIMPS">{{cite journal |first1 = E. F. |last1 = Tedesco |first2 = P. V. |last2 = Noah |first3 = M. |last3 = Noah |first4 = S. D. |last4 = Price |date = October 2004 |title = IRAS Minor Planet Survey V6.0 |url = https://sbnarchive.psi.edu/pds3/iras/IRAS_A_FPA_3_RDR_IMPS_V6_0/data/diamalb.tab |journal = NASA Planetary Data System |volume = 12 |pages = IRAS-A-FPA-3-RDR-IMPS-V6.0 |bibcode = 2004PDSS...12.....T |accessdate = 22 October 2019}}</ref>
<ref name="AKARI">{{cite journal |display-authors = 6 |first1 = Fumihiko |last1 = Usui |first2 = Daisuke |last2 = Kuroda |first3 = Thomas G. |last3 = Müller |first4 = Sunao |last4 = Hasegawa |first5 = Masateru |last5 = Ishiguro |first6 = Takafumi |last6 = Ootsubo |first7 = Daisuke |last7 = Ishihara |first8 = Hirokazu |last8 = Kataza |first9 = Satoshi |last9 = Takita |first10 = Shinki |last10 = Oyabu |first11 = Munetaka |last11 = Ueno |first12 = Hideo |last12 = Matsuhara |first13 = Takashi |last13 = Onaka |date = October 2011 |title = Asteroid Catalog Using Akari: AKARI/IRC Mid-Infrared Asteroid Survey |journal = Publications of the Astronomical Society of Japan |volume = 63 |issue = 5 |pages = 1117–1138 |bibcode = 2011PASJ...63.1117U |doi = 10.1093/pasj/63.5.1117 |doi-access= free }} ([http://vizier.cfa.harvard.edu/viz-bin/VizieR-5?-source=J/PASJ/63/1117/acua_v1&Num=1735 online], [https://core.ac.uk/download/pdf/43545172.pdf AcuA catalog p. 153])</ref>
<ref name="Masiero-2012">{{cite journal |display-authors = 6 |first1 = Joseph R. |last1 = Masiero |first2 = A. K. |last2 = Mainzer |first3 = T. |last3 = Grav |first4 = J. M. |last4 = Bauer |first5 = R. M. |last5 = Cutri |first6 = C. |last6 = Nugent |first7 = M. S. |last7 = Cabrera |date = November 2012 |title = Preliminary Analysis of WISE/NEOWISE 3-Band Cryogenic and Post-cryogenic Observations of Main Belt Asteroids |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2012ApJ...759L...8M |journal = The Astrophysical Journal Letters |volume = 759 |issue = 1 |page = 5 |bibcode = 2012ApJ...759L...8M |doi = 10.1088/2041-8205/759/1/L8 |arxiv = 1209.5794 |access-date= 21 December 2016}}</ref>
<ref name="Hanus-2016a">{{Cite journal |display-authors = 6 |first1 = J. |last1 = Hanus |first2 = J. |last2 = Durech |first3 = D. A. |last3 = Oszkiewicz |first4 = R. |last4 = Behrend |first5 = B. |last5 = Carry |first6 = M. |last6 = Delbo |first7 = O. |last7 = Adam |first8 = V. |last8 = Afonina |first9 = R. |last9 = Anquetin |first10 = P. |last10 = Antonini |first11 = L. |last11 = Arnold |first12 = M. |last12 = Audejean |first13 = P. |last13 = Aurard |first14 = M. |last14 = Bachschmidt |first15 = B. |last15 = Baduel |first16 = E. |last16 = Barbotin |first17 = P. |last17 = Barroy |first18 = P. |last18 = Baudouin |first19 = L. |last19 = Berard |first20 = N. |last20 = Berger |first21 = L. |last21 = Bernasconi |first22 = J.-G. |last22 = Bosch |first23 = S. |last23 = Bouley |first24 = I. |last24 = Bozhinova |first25 = J. |last25 = Brinsfield |first26 = L. |last26 = Brunetto |first27 = G. |last27 = Canaud |first28 = J. |last28 = Caron |first29 = F. |last29 = Carrier |first30 = G. |last30 = Casalnuovo |first31 = S. |last31 = Casulli |first32 = M. |last32 = Cerda |first33 = L. |last33 = Chalamet |first34 = S. |last34 = Charbonnel |first35 = B. |last35 = Chinaglia |first36 = A. |last36 = Cikota |first37 = F. |last37 = Colas |first38 = J.-F. |last38 = Coliac |first39 = A. |last39 = Collet |first40 = J. |last40 = Coloma |first41 = M. |last41 = Conjat |first42 = E. |last42 = Conseil |first43 = R. |last43 = Costa |first44 = R. |last44 = Crippa |first45 = M. |last45 = Cristofanelli |first46 = Y. |last46 = Damerdji |last47 = Debackè |first48 = A. |last48 = re |first49 = A. |last49 = Decock |first50 = Q. |last50 = Déhais |first51 = T. |last51 = Déléage |first52 = S. |last52 = Delmelle |first53 = C. |last53 = Demeautis |first54 = M. |last54 = Drózdz |first55 = G. |last55 = Dubos |first56 = T. |last56 = Dulcamara |first57 = M. |last57 = Dumont |first58 = R. |last58 = Durkee |first59 = R. |last59 = Dymock |first60 = A. |last60 = Escalante del Valle |first61 = N. |last61 = Esseiva |first62 = R. |last62 = Esseiva |first63 = M. |last63 = Esteban |first64 = T. |last64 = Fauchez |first65 = M. |last65 = Fauerbach |first66 = M. |last66 = Fauvaud |first67 = S. |last67 = Fauvaud |first68 = E. |last68 = Forné |first69 = C. |last69 = Fournel |first70 = D. |last70 = Fradet |first71 = J. |last71 = Garlitz |first72 = O. |last72 = Gerteis |first73 = C. |last73 = Gillier |first74 = M. |last74 = Gillon |first75 = R. |last75 = Giraud |first76 = J.-P. |last76 = Godard |first77 = R. |last77 = Goncalves |first78 = Hiroko |last78 = Hamanowa |first79 = Hiromi |last79 = Hamanowa |first80 = K. |last80 = Hay |first81 = S. |last81 = Hellmich |first82 = S. |last82 = Heterier |first83 = D. |last83 = Higgins |first84 = R. |last84 = Hirsch |first85 = G. |last85 = Hodosan |first86 = M. |last86 = Hren |first87 = A. |last87 = Hygate |first88 = N. |last88 = Innocent |first89 = H. |last89 = Jacquinot |first90 = S. |last90 = Jawahar |first91 = E. |last91 = Jehin |first92 = L. |last92 = Jerosimic |first93 = A. |last93 = Klotz |first94 = W. |last94 = Koff |first95 = P. |last95 = Korlevic |first96 = E. |last96 = Kosturkiewicz |first97 = P. |last97 = Krafft |first98 = Y. |last98 = Krugly |first99 = F. |last99 = Kugel |first100 = O. |last100 = Labrevoir |first101 = J. |last101 = Lecacheux |first102 = M. |last102 = Lehký |first103 = A. |last103 = Leroy |first104 = B. |last104 = Lesquerbault |first105 = M. J. |last105 = Lopez-Gonzales |first106 = M. |last106 = Lutz |first107 = B. |last107 = Mallecot |first108 = J. |last108 = Manfroid |first109 = F. |last109 = Manzini |first110 = A. |last110 = Marciniak |first111 = A. |last111 = Martin |first112 = B. |last112 = Modave |first113 = R. |last113 = Montaigut |first114 = J. |last114 = Montier |first115 = E. |last115 = Morelle |first116 = B. |last116 = Morton |first117 = S. |last117 = Mottola |first118 = R. |last118 = Naves |first119 = J. |last119 = Nomen |first120 = J. |last120 = Oey |first121 = W. |last121 = Ogloza |first122 = M. |last122 = Paiella |first123 = H. |last123 = Pallares |first124 = A. |last124 = Peyrot |first125 = F. |last125 = Pilcher |first126 = J.-F. |last126 = Pirenne |first127 = P. |last127 = Piron |first128 = M. |last128 = Polinska |first129 = M. |last129 = Polotto |first130 = R. |last130 = Poncy |first131 = J. P. |last131 = Previt |first132 = F. |last132 = Reignier |first133 = D. |last133 = Renauld |first134 = D. |last134 = Ricci |first135 = F. |last135 = Richard |first136 = C. |last136 = Rinner |first137 = V. |last137 = Risoldi |first138 = D. |last138 = Robilliard |first139 = D. |last139 = Romeuf |first140 = G. |last140 = Rousseau |first141 = R. |last141 = Roy |first142 = J. |last142 = Ruthroff |first143 = P. A. |last143 = Salom |first144 = L. |last144 = Salvador |first145 = S. |last145 = Sanchez |first146 = T. |last146 = Santana-Ros |first147 = A. |last147 = Scholz |first148 = G. |last148 = Séné |first149 = B. |last149 = Skiff |first150 = K. |last150 = Sobkowiak |first151 = P. |last151 = Sogorb |first152 = F. |last152 = Soldán |first153 = A. |last153 = Spiridakis |first154 = E. |last154 = Splanska |first155 = S. |last155 = Sposetti |first156 = D. |last156 = Starkey |first157 = R. |last157 = Stephens |first158 = A. |last158 = Stiepen |first159 = R. |last159 = Stoss |first160 = J. |last160 = Strajnic |first161 = J.-P. |last161 = Teng |first162 = G. |last162 = Tumolo |first163 = A. |last163 = Vagnozzi |first164 = B. |last164 = Vanoutryve |first165 = J. M. |last165 = Vugnon |first166 = B. D. |last166 = Warner |first167 = M. |last167 = Waucomont |first168 = O. |last168 = Wertz |first169 = M. |last169 = Winiarski |first170 = M. |last170 = Wolf |date = February 2016 |title = New and updated convex shape models of asteroids based on optical data from a large collaboration network |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2016A&A...586A.108H |journal = Astronomy and Astrophysics |volume = 586 |page = 24 |bibcode = 2016A&A...586A.108H |doi = 10.1051/0004-6361/201527441 |access-date= 21 December 2016|arxiv = 1510.07422 }}</ref>
<ref name="Veres-2015">{{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= 21 December 2016}}</ref>
}} <!-- end of reflist -->
== External links == * [http://www.minorplanet.info/PHP/lcdbsummaryquery.php Asteroid Lightcurve Database (LCDB)], query form ([http://www.minorplanet.info/lightcurvedatabase.html info] {{Webarchive|url=https://web.archive.org/web/20171216050541/http://www.minorplanet.info/lightcurvedatabase.html |date=16 December 2017 }}) * [https://books.google.com/books?id=aeAg1X7afOoC&pg Dictionary of Minor Planet Names], Google books * [http://obswww.unige.ch/~behrend/page_cou.html Asteroids and comets rotation curves, CdR] – Observatoire de Genève, Raoul Behrend * [https://www.minorplanetcenter.net/iau/lists/NumberedMPs000001.html Discovery Circumstances: Numbered Minor Planets (1)-(5000)] – Minor Planet Center * {{AstDys|1735}} * {{JPL small body}}
{{Minor planets navigator |1734 Zhongolovich |number=1735 |1736 Floirac}} {{Small Solar System bodies}} {{Authority control}}
{{DEFAULTSORT:ITA}} 001735 Category:Discoveries by Pelageya Shajn Category:Named minor planets 19480910