Class information for:
Level 1: PL ASTRON//METHODS OF ASTRONOMICAL OBSERVATIONS//90 DEGREE

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
28355 209 16.5 30%


Bar chart of Publication_year

Last years might be incomplete

Hierarchy of classes
The table includes all classes above and classes immediately below the current class.


Cluster id Level Cluster label #P
19 4 ASTRONOMY & ASTROPHYSICS//ASTROPHYSICAL JOURNAL//ASTRON 523489
8 3       ASTRONOMY & ASTROPHYSICS//ASTROPHYSICAL JOURNAL//MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 146114
3641 2             RADIO ASTRONOMY//INSTRUMENTATION INTERFEROMETERS//TECHNIQUES INTERFEROMETRIC 1198
28355 1                   PL ASTRON//METHODS OF ASTRONOMICAL OBSERVATIONS//90 DEGREE 209

Terms with highest relevance score


rank Term termType Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 PL ASTRON address 499431 10% 16% 21
2 METHODS OF ASTRONOMICAL OBSERVATIONS authKW 219151 1% 50% 3
3 90 DEGREE authKW 146102 0% 100% 1
4 ANALOG CORRELATORS authKW 146102 0% 100% 1
5 ATELIER INTER UNIV MICROELECT address 146102 0% 100% 1
6 DELAY AMBIGUITY RESOLUTION authKW 146102 0% 100% 1
7 DIGITAL BASEBAND CONVERTER authKW 146102 0% 100% 1
8 DIPARTIMENTO ELETTRON PLICAT address 146102 0% 100% 1
9 EARTHS ORIENTATION PARAMETERS authKW 146102 0% 100% 1
10 EARTHS ROTATION PARAMETERS authKW 146102 0% 100% 1

Web of Science journal categories


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 Astronomy & Astrophysics 2730 47% 0% 99
2 Telecommunications 844 17% 0% 36
3 Engineering, Electrical & Electronic 705 35% 0% 73
4 Instruments & Instrumentation 702 19% 0% 39
5 Remote Sensing 559 7% 0% 15
6 Engineering, General 214 8% 0% 17
7 Geochemistry & Geophysics 134 8% 0% 16
8 Meteorology & Atmospheric Sciences 82 6% 0% 13
9 Humanities, Multidisciplinary 11 1% 0% 2
10 Imaging Science & Photographic Technology 6 1% 0% 2

Address terms


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 PL ASTRON 499431 10% 16% 21
2 ATELIER INTER UNIV MICROELECT 146102 0% 100% 1
3 DIPARTIMENTO ELETTRON PLICAT 146102 0% 100% 1
4 GW DOWNS PHYS 146102 0% 100% 1
5 PL ASTRON IAA 146102 0% 100% 1
6 UMR INPG UJF 5130 146102 0% 100% 1
7 BURYAT BRANCH 48699 0% 33% 1
8 IMEPUMR 5130 29219 0% 20% 1
9 SPACE GEODYNAM 29219 0% 20% 1
10 KASHIMA SPACE TECHNOL 20870 0% 14% 1

Journals


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 JOURNAL OF THE RADIO RESEARCH LABORATORY 125585 3% 12% 7
2 SOVIET ASTRONOMY LETTERS 12428 5% 1% 11
3 INSTRUMENTS AND EXPERIMENTAL TECHNIQUES 10567 8% 0% 17
4 JOURNAL OF THE ROYAL ASTRONOMICAL SOCIETY OF CANADA 6703 1% 2% 3
5 IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT 5936 9% 0% 19
6 PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 5536 6% 0% 12
7 RADIO SCIENCE 5364 6% 0% 13
8 PROCEEDINGS ASTRONOMICAL SOCIETY OF AUSTRALIA 4159 2% 1% 4
9 EXPERIMENTAL ASTRONOMY 3450 2% 1% 4
10 ASTRONOMY LETTERS-A JOURNAL OF ASTRONOMY AND SPACE ASTROPHYSICS 2281 3% 0% 6

Author Key Words


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class		 LCSH search Wikipedia search
1 METHODS OF ASTRONOMICAL OBSERVATIONS 219151 1% 50% 3 Search METHODS+OF+ASTRONOMICAL+OBSERVATIONS Search METHODS+OF+ASTRONOMICAL+OBSERVATIONS
2 90 DEGREE 146102 0% 100% 1 Search 90+DEGREE Search 90+DEGREE
3 ANALOG CORRELATORS 146102 0% 100% 1 Search ANALOG+CORRELATORS Search ANALOG+CORRELATORS
4 DELAY AMBIGUITY RESOLUTION 146102 0% 100% 1 Search DELAY+AMBIGUITY+RESOLUTION Search DELAY+AMBIGUITY+RESOLUTION
5 DIGITAL BASEBAND CONVERTER 146102 0% 100% 1 Search DIGITAL+BASEBAND+CONVERTER Search DIGITAL+BASEBAND+CONVERTER
6 EARTHS ORIENTATION PARAMETERS 146102 0% 100% 1 Search EARTHS+ORIENTATION+PARAMETERS Search EARTHS+ORIENTATION+PARAMETERS
7 EARTHS ROTATION PARAMETERS 146102 0% 100% 1 Search EARTHS+ROTATION+PARAMETERS Search EARTHS+ROTATION+PARAMETERS
8 ELECTRONIC VLBI 146102 0% 100% 1 Search ELECTRONIC+VLBI Search ELECTRONIC+VLBI
9 EXTENDED CRT 146102 0% 100% 1 Search EXTENDED+CRT Search EXTENDED+CRT
10 FREQUENCY CONVERTING SYSTEM 146102 0% 100% 1 Search FREQUENCY+CONVERTING+SYSTEM Search FREQUENCY+CONVERTING+SYSTEM

Core articles
The table includes core articles in the class. The following variables is taken into account for the relevance score of an article in a cluster c:
(1) Number of references referring to publications in the class.
(2) Share of total number of active references referring to publications in the class.
(3) Age of the article. New articles get higher score than old articles.
(4) Citation rate, normalized to year.


Rank Reference # ref.
in cl.		 Shr. of ref. in
cl.		 Citations
1 KIUCHI, H , OKUMURA, S , AMAGAI, J , IGUCHI, S , KONDO, T , (2007) DIRECTLY CONTROLLED REFERENCE FREQUENCY WAVEFRONT CLOCK METHOD APPLIED TO 100-GHZ RADIO INTERFEROMETRY AND FRINGE SIMULATOR.RADIO SCIENCE. VOL. 42. ISSUE 3. P. - 8 89% 1
2 FEDOTOV, LV , KOL'TSOV, NE , MARSHALOV, DA , NOSOV, EV , (2013) A DATA ACQUISITION SYSTEM OF THE S/X-WAVE RANGE OF THE RADIO INTERFEROMETER FOR THE UNIVERSAL TIME ON-LINE MONITORING.INSTRUMENTS AND EXPERIMENTAL TECHNIQUES. VOL. 56. ISSUE 3. P. 339-346 5 100% 0
3 KIUCHI, H , IMAE, M , KONDO, T , SEKIDO, A , HAMA, S , HOSHINO, T , UOSE, H , YAMAMOTO, T , (2000) REAL-TIME VLBI SYSTEM USING ATM NETWORK.IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING. VOL. 38. ISSUE 3. P. 1290 -1297 6 100% 1
4 LANUCARA, M , BORGHI, R , (2013) DECORRELATION OF QUANTIZED SIGNALS INDUCED BY FILTERING AND REQUANTIZATION.DIGITAL SIGNAL PROCESSING. VOL. 23. ISSUE 2. P. 522-529 5 83% 0
5 KIUCHI, H , (2005) PARALLEL BIT STREAM CORRELATION SYSTEM FOR VERY LONG BASELINE INTERFEROMETRY.RADIO SCIENCE. VOL. 40. ISSUE 5. P. - 6 75% 1
6 FINKELSTEIN, AM , IPATOV, AV , SKURIKHINA, EA , SURKIS, IF , SMOLENTSEV, SG , FEDOTOV, LV , (2012) GEODYNAMIC OBSERVATIONS ON THE QUASAR VLBI NETWORK IN 2009-2011.ASTRONOMY LETTERS-A JOURNAL OF ASTRONOMY AND SPACE ASTROPHYSICS. VOL. 38. ISSUE 6. P. 394-398 3 100% 3
7 BAARS, JWM , D'ADDARIO, LR , THOMPSON, AR , (2009) RADIO ASTRONOMY IN THE EARLY TWENTY-FIRST CENTURY.PROCEEDINGS OF THE IEEE. VOL. 97. ISSUE 8. P. 1377-1381 4 80% 4
8 FINKELSTEIN, AM , KAIDANOVSKII, MN , SAL'NIKOV, AI , MIKHAILOV, AG , BEZRUKOV, IA , SKURIKHINA, EA , SURKIS, IF , (2011) PROMPT DETERMINATION OF UNIVERSAL TIME CORRECTIONS IN E-VLBI MODE.ASTRONOMY LETTERS-A JOURNAL OF ASTRONOMY AND SPACE ASTROPHYSICS. VOL. 37. ISSUE 6. P. 431-439 3 100% 0
9 IGUCHI, S , KURAYAMA, T , KAWAGUCHI, N , KAWAKAMI, K , (2005) GIGABIT DIGITAL FILTER BANK: DIGITAL BACKEND SUBSYSTEM IN THE VERA DATA-ACQUISITION SYSTEM.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN. VOL. 57. ISSUE 1. P. 259 -271 4 80% 45
10 KIUCHI, H , TAKAHASHI, Y , KANEKO, A , UOSE, H , IWAMURA, S , HOSHINO, T , KAWAGUCHI, N , KOBAYASHI, H , FUJISAWA, K , AMAGAI, J , ET AL (2000) VERY LONG BASELINE CONNECTED INTERFEROMETRY VIA THE STM-16 ATM NETWORK.IEICE TRANSACTIONS ON COMMUNICATIONS. VOL. E83B. ISSUE 2. P. 238 -245 4 100% 0

Classes with closest relation at Level 1


Rank Class id link
1 16316 RADIO ASTRONOMY//INSTRUMENTATION INTERFEROMETERS//PHASED ARRAY FEED
2 28430 FREQUENCY INDEPENDENT DESIGN//GRP RADIC//TERAHERTZ INSTRUMENTS
3 34779 ACTIVE DIPOLE//LNA AMPLIFIER//ANNALES DES MINES
4 21640 BOLTZMANN CONSTANT//PRIMARY THERMOMETRY//ACOUSTIC THERMOMETRY
5 36629 ECL EXOR//MULTI STRIP RESONATOR//RADIO COMMUN NETWORKS S RADIO COMMUN SYST
6 8987 SIS MIXER//SUPERCONDUCTOR INSULATOR SUPERCONDUCTOR SIS MIXERS//HOT ELECTRON BOLOMETER
7 7231 GNSS METEOROLOGY//ZENITH TROPOSPHERIC DELAY//GPS METEOROLOGY
8 36432 ELECTRIC STRESS CONTROL//EQUIVALENT ELECTRODES METHOD//ENDWINDINGS
9 8630 REFERENCE SYSTEMS//ASTROMETRY//HIPPARCOS
10 27274 KEPLERS EQUATION//OPTIMAL STARTER//HALF ARGUMENT TRANSFORMATION

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