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
1985968 citationsI. I. Shapiro, A. E. E. Rogers et al.profile →
Citations per year, relative to I. I. Shapiro I. I. Shapiro (= 1×)
peers
L.J. Romans
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).
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
20 of 20 papers shown
1.
Shapiro, I. I., D. B. Haarsma, Joshua N. Winn, & Joseph Lehár. (2009). The Central Component of Gravitational Lens Q0957+561. Digital Access to Scholarship at Harvard (DASH) (Harvard University).1 indexed citations
2.
Guirado, J. C., J. M. Marcaide, P. Elósegui, et al.. (1995). VLBI differential astrometry of the radio sources 1928+738 and 2007+777 at 5 GHz.. A&A. 293. 613–625.
3.
Ostro, S. J., J. K. Harmon, A. A. Hine, et al.. (1991). High-Resolution Radar Ranging to Near-Earth Asteroids. Bulletin of the American Astronomical Society. 23. 1144.
4.
Ostro, S. J., D. B. Campbell, I. I. Shapiro, et al.. (1988). The Icy Galilean Satellites: New Radar Results. Bulletin of the American Astronomical Society. 20. 876.1 indexed citations
5.
Ostro, S. J., D. B. Campbell, & I. I. Shapiro. (1986). Radar Detection of 12 Asteroids from Arecibo. Bulletin of the American Astronomical Society. 18. 796.3 indexed citations
6.
Ostro, S. J., D. B. Campbell, & I. I. Shapiro. (1985). Radar properties of near-earth asteroids.. Bulletin of the American Astronomical Society. 17(3). 729–730.5 indexed citations
7.
Shapiro, I. I., et al.. (1982). Comet Grigg-Skjellerup: Radar Detection of Nucleus.. Bulletin of the American Astronomical Society. 14. 753.2 indexed citations
8.
Campbell, D. B., et al.. (1981). Radar Observations of the Nucleus of the Comet P/Encke.. Bulletin of the American Astronomical Society. 13. 705.2 indexed citations
9.
Ostro, S. J. & I. I. Shapiro. (1980). Radar Observations of Asteroid 1685 Toro.. Bulletin of the American Astronomical Society. 12. 666.
10.
Gorenstein, M. V., I. I. Shapiro, N. L. Cohen, et al.. (1980). VLBI Observations of the "Twin Quasar" 0957+56A, B. Bulletin of the American Astronomical Society. 12. 498.1 indexed citations
11.
Cappallo, R. J., C. C. Counselman, I. I. Shapiro, & R. W. King. (1977). A numerical model of the moon's rotation. Defense Technical Information Center (DTIC).1 indexed citations
12.
Reasenberg, R. D., et al.. (1977). The Pole Direction and Precession of Mars.. Bulletin of the American Astronomical Society. 9. 520.2 indexed citations
13.
Campbell, D. B., J. F. Chandler, G. H. Pettengill, & I. I. Shapiro. (1976). The Galilean Satellites: 12.6-cm Radar Observations. Bulletin of the American Astronomical Society. 8. 463.2 indexed citations
14.
Reasenberg, R. D., I. I. Shapiro, G. H. Pettengill, & D. B. Campbell. (1976). Bounds on the Secular Variation of the Gravitational Constant. Bulletin of the American Astronomical Society. 8. 308.4 indexed citations
15.
Chaisson, Eric J., R. P. Ingalls, A. E. E. Rogers, & I. I. Shapiro. (1975). Upper limits on the radar cross section of comet Kohoutek.. NASSP. 355. 189–191.1 indexed citations
16.
Shapiro, I. I., et al.. (1975). Lageos laser observations error analysis. NASA STI/Recon Technical Report N. 76. 20186.1 indexed citations
17.
Clark, T. A., H. F. Hinteregger, C. A. Knight, et al.. (1973). Source Positions from Very Long Baseline Interferometer Observations.. Bulletin of the American Astronomical Society. 5. 30.2 indexed citations
18.
Whitney, A. R., B. F. Burke, T. A. Clark, et al.. (1970). Long-Baseline Interferometric Measurement of Gravitational Bending of Radiation from 3C279 in the Solar Gravitational Field.. Bulletin of the American Astronomical Society. 2. 356.1 indexed citations
19.
Shapiro, I. I.. (1966). Radar Determinations of Planetary Motions. Transactions of the International Astronomical Union. 615.1 indexed citations
20.
Shapiro, I. I.. (1957). The prediction of ballistic missile trajectories from radar observations. McGraw-Hill eBooks.15 indexed citations
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.