{"id":"https://openalex.org/W1513080888","doi":null,"title":"Scientific challenges of CHANDRAYAAN-1: the Indian lunar polar orbiter mission","display_name":"Scientific challenges of CHANDRAYAAN-1: the Indian lunar polar orbiter mission","publication_year":2004,"publication_date":"2004-06-10","ids":{"openalex":"https://openalex.org/W1513080888","mag":"1513080888"},"language":"en","primary_location":{"id":"mag:1513080888","doi":null,"is_oa":false,"landing_page_url":"http://repository.ias.ac.in/18445/1/325.pdf","pdf_url":null,"source":null,"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":"Current Science","raw_type":null},"volume":null,"type":"article","is_traditional":true,"indexed_in":[],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5018120258","display_name":"N. Bhandari","orcid":"https://orcid.org/0009-0009-2004-416X","observed_orcids":["https://orcid.org/0009-0009-2004-416X"]},"institutions":[],"countries":[],"is_corresponding":true,"raw_author_name":"N. Bhandari","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":["https://openalex.org/A5018120258"],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":1.2484,"has_fulltext":false,"cited_by_count":14,"citation_normalized_percentile":{"value":0.78438049,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":93},"biblio":{"volume":"86","issue":"11","first_page":"1489","last_page":"1498"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10406","display_name":"Planetary Science and Exploration","score":0.9887999892234802,"subfield":{"id":"https://openalex.org/subfields/1912","display_name":"Space and Planetary Science"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10406","display_name":"Planetary Science and Exploration","score":0.9887999892234802,"subfield":{"id":"https://openalex.org/subfields/1912","display_name":"Space and Planetary Science"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10325","display_name":"Astro and Planetary Science","score":0.007300000172108412,"subfield":{"id":"https://openalex.org/subfields/1912","display_name":"Space and Planetary Science"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12449","display_name":"Spacecraft Design and Technology","score":0.0012000000569969416,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/chandrayaan-1","display_name":"Chandrayaan-1","score":0.9350000023841858},{"id":"https://openalex.org/keywords/lunar-geochemistry","display_name":"lunar geochemistry","score":0.8399999737739563},{"id":"https://openalex.org/keywords/hyperspectral-imager","display_name":"hyperspectral imager","score":0.8230000138282776},{"id":"https://openalex.org/keywords/x-ray-fluorescence-spectrometer","display_name":"X-ray fluorescence spectrometer","score":0.9950000047683716},{"id":"https://openalex.org/keywords/gamma-ray-spectrometer","display_name":"gamma-ray spectrometer","score":0.8999999761581421},{"id":"https://openalex.org/keywords/laser-altimeter","display_name":"laser altimeter","score":0.9869999885559082},{"id":"https://openalex.org/keywords/lunar-orbit-insertion","display_name":"lunar orbit insertion","score":0.625}],"concepts":[{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.6671582460403442},{"id":"https://openalex.org/C2776481522","wikidata":"https://www.wikidata.org/wiki/Q40218","display_name":"Orbiter","level":2,"score":0.6113165020942688},{"id":"https://openalex.org/C19269812","wikidata":"https://www.wikidata.org/wiki/Q26540","display_name":"Satellite","level":2,"score":0.5907930135726929},{"id":"https://openalex.org/C183852935","wikidata":"https://www.wikidata.org/wiki/Q6002848","display_name":"Imaging spectrometer","level":3,"score":0.523559033870697},{"id":"https://openalex.org/C159078339","wikidata":"https://www.wikidata.org/wiki/Q959005","display_name":"Hyperspectral imaging","level":2,"score":0.5105991959571838},{"id":"https://openalex.org/C87355193","wikidata":"https://www.wikidata.org/wiki/Q411","display_name":"Astrobiology","level":1,"score":0.46783342957496643},{"id":"https://openalex.org/C152067771","wikidata":"https://www.wikidata.org/wiki/Q495307","display_name":"Moon landing","level":3,"score":0.4573904275894165},{"id":"https://openalex.org/C161840515","wikidata":"https://www.wikidata.org/wiki/Q186131","display_name":"Terrain","level":2,"score":0.44745439291000366},{"id":"https://openalex.org/C107195362","wikidata":"https://www.wikidata.org/wiki/Q816838","display_name":"Far side of the Moon","level":2,"score":0.4388246536254883},{"id":"https://openalex.org/C155334826","wikidata":"https://www.wikidata.org/wiki/Q210448","display_name":"Lunar orbit","level":3,"score":0.43641233444213867},{"id":"https://openalex.org/C207520454","wikidata":"https://www.wikidata.org/wiki/Q3099911","display_name":"Scientific instrument","level":2,"score":0.43184274435043335},{"id":"https://openalex.org/C17534553","wikidata":"https://www.wikidata.org/wiki/Q216197","display_name":"Altimeter","level":2,"score":0.4293917417526245},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.4246314764022827},{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.4180782437324524},{"id":"https://openalex.org/C29829512","wikidata":"https://www.wikidata.org/wiki/Q40218","display_name":"Spacecraft","level":2,"score":0.4098374545574188},{"id":"https://openalex.org/C33390570","wikidata":"https://www.wikidata.org/wiki/Q188463","display_name":"Spectrometer","level":2,"score":0.4060834050178528},{"id":"https://openalex.org/C146978453","wikidata":"https://www.wikidata.org/wiki/Q3798668","display_name":"Aerospace engineering","level":1,"score":0.36392301321029663},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.234248548746109},{"id":"https://openalex.org/C8058405","wikidata":"https://www.wikidata.org/wiki/Q46255","display_name":"Geophysics","level":1,"score":0.1785714328289032},{"id":"https://openalex.org/C1276947","wikidata":"https://www.wikidata.org/wiki/Q333","display_name":"Astronomy","level":1,"score":0.16251534223556519},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.1542108654975891},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.10077092051506042},{"id":"https://openalex.org/C2779821442","wikidata":"https://www.wikidata.org/wiki/Q41633","display_name":"Apollo","level":2,"score":0.09105035662651062},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.08884188532829285},{"id":"https://openalex.org/C58640448","wikidata":"https://www.wikidata.org/wiki/Q42515","display_name":"Cartography","level":1,"score":0.0},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0},{"id":"https://openalex.org/C90856448","wikidata":"https://www.wikidata.org/wiki/Q431","display_name":"Zoology","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"mag:1513080888","doi":null,"is_oa":false,"landing_page_url":"http://repository.ias.ac.in/18445/1/325.pdf","pdf_url":null,"source":null,"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":"Current Science","raw_type":null}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":17,"referenced_works":["https://openalex.org/W1598138611","https://openalex.org/W1631451703","https://openalex.org/W1645993966","https://openalex.org/W1649105263","https://openalex.org/W1650944610","https://openalex.org/W1664709022","https://openalex.org/W1975640118","https://openalex.org/W1992495247","https://openalex.org/W1994917083","https://openalex.org/W2001649310","https://openalex.org/W2006594189","https://openalex.org/W2043818941","https://openalex.org/W2068583559","https://openalex.org/W2073080196","https://openalex.org/W2089070966","https://openalex.org/W2090219150","https://openalex.org/W2523197133"],"related_works":["https://openalex.org/W2083084242","https://openalex.org/W1667303682","https://openalex.org/W1616527211","https://openalex.org/W4389401653","https://openalex.org/W3183917034","https://openalex.org/W2316491192","https://openalex.org/W1599480494","https://openalex.org/W2120108614","https://openalex.org/W4386186884","https://openalex.org/W1971038692"],"abstract_inverted_index":{"The":[0,25,44,174],"Indian":[1],"Space":[2],"Research":[3],"Organisation":[4],"is":[5,179],"planning":[6],"to":[7,15,141,180],"send":[8],"a":[9,67,72,76,107,123,165],"polar":[10,127],"orbiting":[11],"satellite":[12],"called":[13],"CHANDRAYAAN-1":[14],"the":[16,22,29,40,85,99,130,153,159,170,182,186,190,197],"Moon,":[17],"for":[18,49,55,62,78,138,144,149,162],"remote":[19],"sensing":[20],"of":[21,28,39,87,117,147,152,169,176,185],"lunar":[23,42,154],"surface.":[24,43,155],"scientific":[26,160,172,183],"objectives":[27,193],"proposed":[30],"mission":[31,89,166],"are":[32],"simultaneous":[33],"geochemical,":[34],"mineralogical":[35,50],"and":[36,71,167,194],"photogeological":[37],"studies":[38],"whole":[41],"payloads":[45,118],"include":[46],"hyperspectral":[47],"imager":[48],"mapping,":[51,57],"X-ray":[52],"fluorescence":[53],"spectrometer":[54,61],"elemental":[56],"low":[58],"energy":[59],"gamma-ray":[60],"mapping":[63,69],"some":[64,79,168],"radioactive":[65],"elements,":[66],"terrain":[68],"camera":[70],"laser":[73],"altimeter,":[74],"leaving":[75],"provision":[77],"additional":[80],"instruments,":[81],"which":[82],"may":[83],"enhance":[84],"capability":[86],"this":[88,177],"in":[90,122,188,196],"achieving":[91],"its":[92],"objectives.":[93],"A":[94],"plausible":[95],"launch":[96],"scenario":[97],"using":[98],"Polar":[100],"Satellite":[101],"Launch":[102],"Vehicle":[103],"(PSLV)":[104],"suggests":[105],"that":[106],"lunarcraft":[108],"(dry":[109],"weight":[110],"440":[111],"kg),":[112],"carrying":[113],"about":[114],"60":[115],"kg":[116],"can":[119],"be":[120],"inserted":[121],"100":[124],"km":[125],"altitude":[126],"orbit":[128,139],"around":[129],"Moon":[131],"with":[132],"adequate":[133],"fuel":[134],"(about":[135],"80":[136],"kg)":[137],"maintenance":[140],"sustain":[142],"it":[143],"two":[145],"years":[146],"observations":[148],"complete":[150],"coverage":[151],"Here":[156],"we":[157],"describe":[158],"reasons":[161],"undertaking":[163],"such":[164],"major":[171],"challenges.":[173],"purpose":[175],"article":[178],"involve":[181],"community":[184],"country":[187],"formulating":[189],"best":[191],"possible":[192],"participating":[195],"mission.":[198]},"counts_by_year":[{"year":2024,"cited_by_count":1},{"year":2017,"cited_by_count":1},{"year":2016,"cited_by_count":1},{"year":2015,"cited_by_count":1},{"year":2014,"cited_by_count":1},{"year":2013,"cited_by_count":1},{"year":2012,"cited_by_count":1}],"updated_date":"2026-10-01T08:54:57.152042","created_date":"2016-06-24T00:00:00"}
