I. I. Shapiro

13.7k citations

309 papers · 8.6k indexed · 2 hit papers · h-index 46

Co-authors: T. A. Herring J. L. Davis A. E. E. Rogers Gunnar Elgered D. B. Campbell G. H. Pettengill C. C. Counselman P. M. Mathews
Topics: Planetary Science and Exploration (93 papers)Geophysics and Gravity Measurements (86 papers)Astro and Planetary Science (84 papers)
Cited by: Astronomy and Astrophysics Oceanography Aerospace Engineering
Journals: Nature Science Physical Review Letters
Partner nations: United States Puerto Rico Canada

In The Last Decade

I. I. Shapiro

289 papers receiving 7.5k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Geodesy by radio interferometry: Effects of atmospheric modeling errors on estimates of baseline length

1985 968 citations I. I. Shapiro, A. E. E. Rogers et al. profile →
Fourth Test of General Relativity

1964 620 citations I. I. Shapiro profile →

Peers

Countries citing papers authored by I. I. Shapiro

Since Specialization

Citations

This map shows the geographic impact of I. I. Shapiro's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by I. I. Shapiro with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites I. I. Shapiro more than expected).

Fields of papers citing papers by I. I. Shapiro

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by I. I. Shapiro. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by I. I. Shapiro. The network helps show where I. I. Shapiro may publish in the future.

Co-authorship network of co-authors of I. I. Shapiro

This figure shows the co-authorship network connecting the top 25 collaborators of I. I. Shapiro. A scholar is included among the top collaborators of I. I. Shapiro based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with I. I. Shapiro. I. I. Shapiro is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

#	Work	Indexed citations
1	The Central Component of Gravitational Lens Q0957+561 2009 ·Digital Access to Scholarship at Harvard (DASH) (Harvard University) ·I. I. Shapiro,D. B. Haarsma,Joshua N. Winn,Joseph Lehár	1
2	VLBI differential astrometry of the radio sources 1928+738 and 2007+777 at 5 GHz. 1995 ·A&A ·J. C. Guirado,J. M. Marcaide,P. Elósegui,M. I. Ratner,I. I. Shapiro,A. Eckart,A. Quirrenbach,C. J. Schalinski,A. Witzel	0
3	High-Resolution Radar Ranging to Near-Earth Asteroids 1991 ·Bulletin of the American Astronomical Society ·S. J. Ostro,J. K. Harmon,A. A. Hine,Phil Perillat,D. B. Campbell,J. F. Chandler,I. I. Shapiro,R. F. Jurgens,D. K. Yeomans	0
4	The Icy Galilean Satellites: New Radar Results 1988 ·Bulletin of the American Astronomical Society ·S. J. Ostro,D. B. Campbell,I. I. Shapiro,J. F. Chandler,R. A. Simpson,V. R. Eshleman,T. Hagfors	1
5	Radar Detection of 12 Asteroids from Arecibo 1986 ·Bulletin of the American Astronomical Society ·S. J. Ostro,D. B. Campbell,I. I. Shapiro	3
6	Radar properties of near-earth asteroids. 1985 ·Bulletin of the American Astronomical Society ·S. J. Ostro,D. B. Campbell,I. I. Shapiro	5
7	Comet Grigg-Skjellerup: Radar Detection of Nucleus. 1982 ·Bulletin of the American Astronomical Society ·(unknown),(unknown),I. I. Shapiro,David A. Campbell	2
8	Radar Observations of the Nucleus of the Comet P/Encke. 1981 ·Bulletin of the American Astronomical Society ·(unknown),D. B. Campbell,S. J. Ostro,(unknown),I. I. Shapiro	2
9	Radar Observations of Asteroid 1685 Toro. 1980 ·Bulletin of the American Astronomical Society ·S. J. Ostro,I. I. Shapiro	0
10	VLBI Observations of the "Twin Quasar" 0957+56A, B 1980 ·Bulletin of the American Astronomical Society ·M. V. Gorenstein,I. I. Shapiro,N. L. Cohen,E. Falco,N. E. Kassim,A. E. E. Rogers,A. R. Whitney,R. A. Preston,A. Rius	1
11	A numerical model of the moon's rotation 1977 ·Defense Technical Information Center (DTIC) ·R. J. Cappallo,C. C. Counselman,I. I. Shapiro,R. W. King	1
12	The Pole Direction and Precession of Mars. 1977 ·Bulletin of the American Astronomical Society ·R. D. Reasenberg,R. Goldstein,P. E. MacNeil,I. I. Shapiro,(unknown)	2
13	The Galilean Satellites: 12.6-cm Radar Observations 1976 ·Bulletin of the American Astronomical Society ·D. B. Campbell,J. F. Chandler,G. H. Pettengill,I. I. Shapiro	2
14	Bounds on the Secular Variation of the Gravitational Constant 1976 ·Bulletin of the American Astronomical Society ·R. D. Reasenberg,I. I. Shapiro,G. H. Pettengill,D. B. Campbell	4
15	Upper limits on the radar cross section of comet Kohoutek. 1975 ·NASSP ·Eric J. Chaisson,R. P. Ingalls,A. E. E. Rogers,I. I. Shapiro	1
16	Lageos laser observations error analysis 1975 ·NASA STI/Recon Technical Report N ·I. I. Shapiro,(unknown),R. F. Willson	1
17	Source Positions from Very Long Baseline Interferometer Observations. 1973 ·Bulletin of the American Astronomical Society ·T. A. Clark,(unknown),H. F. Hinteregger,C. A. Knight,D. S. Robertson,A. E. E. Rogers,I. I. Shapiro,A. R. Whitney	2
18	Long-Baseline Interferometric Measurement of Gravitational Bending of Radiation from 3C279 in the Solar Gravitational Field. 1970 ·Bulletin of the American Astronomical Society ·A. R. Whitney,B. F. Burke,T. A. Clark,H. F. Hinteregger,C. A. Knight,D. S. Robertson,A. E. E. Rogers,I. I. Shapiro	1
19	Radar Determinations of Planetary Motions 1966 ·Transactions of the International Astronomical Union ·I. I. Shapiro	1
20	The prediction of ballistic missile trajectories from radar observations 1957 ·McGraw-Hill eBooks ·I. I. Shapiro	15

About I. I. Shapiro

I. I. Shapiro is a scholar working on Astronomy and Astrophysics, Oceanography and Instrumentation, having authored 309 papers that have together received 8.6k indexed citations. Recurring topics across this work include Planetary Science and Exploration (93 papers), Geophysics and Gravity Measurements (86 papers) and Astro and Planetary Science (84 papers). The work is most often cited by research in Astronomy and Astrophysics (6.6k citations), Oceanography (3.0k citations) and Aerospace Engineering (2.3k citations). I. I. Shapiro has collaborated with scholars based in United States, Puerto Rico and Canada. Frequent co-authors include T. A. Herring, J. L. Davis, A. E. E. Rogers, Gunnar Elgered, D. B. Campbell, G. H. Pettengill, C. C. Counselman, P. M. Mathews, B. A. Buffett and Michael E. Ash. Their work appears in journals such as Nature, Science and Physical Review Letters.

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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