Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W797338824', 'doi': None, 'title': 'Interferometry of GPS signal occultations from low Earth orbiters', 'display_name': 'Interferometry of GPS signal occultations from low Earth orbiters', 'publication_year': 2003, 'publication_date': '2003-12-08', 'ids': {'openalex': 'https://openalex.org/W797338824', 'mag': '797338824'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'https://ntrs.nasa.gov/search.jsp?R=20060029299', 'pdf_url': None, 'source': None, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, 'type': 'article', 'type_crossref': 'journal-article', 'indexed_in': [], 'open_access': {'is_oa': False, 'oa_status': 'closed', 'oa_url': None, 'any_repository_has_fulltext': False}, 'authorships': [{'author_position': 'first', 'author': {'id': 'https://openalex.org/A5017352067', 'display_name': 'Estel Cardellach', 'orcid': 'https://orcid.org/0000-0001-8908-0972'}, 'institutions': [], 'countries': [], 'is_corresponding': False, 'raw_author_name': 'E. Cardellach', 'raw_affiliation_strings': [], 'affiliations': []}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5012194367', 'display_name': 'C. O. Ao', 'orcid': 'https://orcid.org/0000-0001-6171-0872'}, 'institutions': [], 'countries': [], 'is_corresponding': False, 'raw_author_name': 'C. O. Ao', 'raw_affiliation_strings': [], 'affiliations': []}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5031574543', 'display_name': 'Manuel de la Torre Juárez', 'orcid': 'https://orcid.org/0000-0003-1393-5297'}, 'institutions': [], 'countries': [], 'is_corresponding': False, 'raw_author_name': 'M. de la Torre Juarez', 'raw_affiliation_strings': [], 'affiliations': []}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5027253799', 'display_name': 'G. A. Hajj', 'orcid': 'https://orcid.org/0000-0002-7366-7151'}, 'institutions': [], 'countries': [], 'is_corresponding': False, 'raw_author_name': 'G. A. Hajj', 'raw_affiliation_strings': [], 'affiliations': []}], 'institution_assertions': [], 'countries_distinct_count': 0, 'institutions_distinct_count': 0, 'corresponding_author_ids': [], 'corresponding_institution_ids': [], 'apc_list': None, 'apc_paid': None, 'fwci': 0.0, 'has_fulltext': False, 'cited_by_count': 0, 'citation_normalized_percentile': {'value': 0.0, 'is_in_top_1_percent': False, 'is_in_top_10_percent': False}, 'cited_by_percentile_year': {'min': 0, 'max': 59}, 'biblio': {'volume': None, 'issue': None, 'first_page': None, 'last_page': None}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T10655', 'display_name': 'Global Navigation Satellite Systems (GNSS)', 'score': 0.9976, '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'}}, 'topics': [{'id': 'https://openalex.org/T10655', 'display_name': 'Global Navigation Satellite Systems (GNSS)', 'score': 0.9976, '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'}}, {'id': 'https://openalex.org/T11405', 'display_name': 'Global Sea Level Variability and Change', 'score': 0.9927, 'subfield': {'id': 'https://openalex.org/subfields/1910', 'display_name': 'Oceanography'}, '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/T10159', 'display_name': 'Space Weather and Magnetospheric Physics', 'score': 0.9865, 'subfield': {'id': 'https://openalex.org/subfields/3103', 'display_name': 'Astronomy and Astrophysics'}, 'field': {'id': 'https://openalex.org/fields/31', 'display_name': 'Physics and Astronomy'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}], 'keywords': [{'id': 'https://openalex.org/keywords/satellite-measurements', 'display_name': 'satellite measurements', 'score': 0.591432}, {'id': 'https://openalex.org/keywords/multi-gnss-experiment', 'display_name': 'Multi-GNSS Experiment', 'score': 0.580142}, {'id': 'https://openalex.org/keywords/orbit-determination', 'display_name': 'Orbit Determination', 'score': 0.560092}, {'id': 'https://openalex.org/keywords/global-navigation-satellite-systems', 'display_name': 'Global Navigation Satellite Systems', 'score': 0.555916}, {'id': 'https://openalex.org/keywords/space-environment-modeling', 'display_name': 'Space Environment Modeling', 'score': 0.547667}, {'id': 'https://openalex.org/keywords/signal', 'display_name': 'SIGNAL (programming language)', 'score': 0.41813576}], 'concepts': [{'id': 'https://openalex.org/C13280743', 'wikidata': 'https://www.wikidata.org/wiki/Q131089', 'display_name': 'Geodesy', 'level': 1, 'score': 0.8083809}, {'id': 'https://openalex.org/C60229501', 'wikidata': 'https://www.wikidata.org/wiki/Q18822', 'display_name': 'Global Positioning System', 'level': 2, 'score': 0.80405784}, {'id': 'https://openalex.org/C127313418', 'wikidata': 'https://www.wikidata.org/wiki/Q1069', 'display_name': 'Geology', 'level': 0, 'score': 0.5875715}, {'id': 'https://openalex.org/C62649853', 'wikidata': 'https://www.wikidata.org/wiki/Q199687', 'display_name': 'Remote sensing', 'level': 1, 'score': 0.5852551}, {'id': 'https://openalex.org/C12957241', 'wikidata': 'https://www.wikidata.org/wiki/Q15903792', 'display_name': 'GPS signals', 'level': 4, 'score': 0.58204913}, {'id': 'https://openalex.org/C2779843651', 'wikidata': 'https://www.wikidata.org/wiki/Q7390335', 'display_name': 'SIGNAL (programming language)', 'level': 2, 'score': 0.41813576}, {'id': 'https://openalex.org/C87355193', 'wikidata': 'https://www.wikidata.org/wiki/Q411', 'display_name': 'Astrobiology', 'level': 1, 'score': 0.3793034}, {'id': 'https://openalex.org/C198613851', 'wikidata': 'https://www.wikidata.org/wiki/Q432394', 'display_name': 'Assisted GPS', 'level': 3, 'score': 0.2970918}, {'id': 'https://openalex.org/C121332964', 'wikidata': 'https://www.wikidata.org/wiki/Q413', 'display_name': 'Physics', 'level': 0, 'score': 0.22133443}, {'id': 'https://openalex.org/C41008148', 'wikidata': 'https://www.wikidata.org/wiki/Q21198', 'display_name': 'Computer science', 'level': 0, 'score': 0.2174834}, {'id': 'https://openalex.org/C76155785', 'wikidata': 'https://www.wikidata.org/wiki/Q418', 'display_name': 'Telecommunications', 'level': 1, 'score': 0.08025429}, {'id': 'https://openalex.org/C199360897', 'wikidata': 'https://www.wikidata.org/wiki/Q9143', 'display_name': 'Programming language', 'level': 1, 'score': 0.0}], 'mesh': [], 'locations_count': 1, 'locations': [{'is_oa': False, 'landing_page_url': 'https://ntrs.nasa.gov/search.jsp?R=20060029299', 'pdf_url': None, 'source': None, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}], 'best_oa_location': None, 'sustainable_development_goals': [{'id': 'https://metadata.un.org/sdg/13', 'display_name': 'Climate action', 'score': 0.46}], 'grants': [], 'datasets': [], 'versions': [], 'referenced_works_count': 0, 'referenced_works': [], 'related_works': ['https://openalex.org/W970035198', 'https://openalex.org/W834356101', 'https://openalex.org/W831956626', 'https://openalex.org/W789601051', 'https://openalex.org/W71516439', 'https://openalex.org/W52422668', 'https://openalex.org/W3088601698', 'https://openalex.org/W3045000316', 'https://openalex.org/W3016779043', 'https://openalex.org/W2505787022', 'https://openalex.org/W2157660385', 'https://openalex.org/W2080119763', 'https://openalex.org/W2034195567', 'https://openalex.org/W2028597012', 'https://openalex.org/W1966257064', 'https://openalex.org/W1651653291', 'https://openalex.org/W1579630985', 'https://openalex.org/W1532363936', 'https://openalex.org/W111576167', 'https://openalex.org/W1039644724'], 'abstract_inverted_index': None, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W797338824', 'counts_by_year': [], 'updated_date': '2024-09-14T15:32:51.652890', 'created_date': '2016-06-24'}