The DOI matches its Crossref record.
The VLBA Calibrator Survey—VCS1
Open accessAbstract
A catalog containing milliarcsecond-accurate positions of 1332 extragalactic radio sources distributed over the northern sky is presented—the Very Long Baseline Array Calibrator Survey (VCS1). The positions have been derived from astrometric analysis of dual-frequency 2.3 and 8.4 GHz VLBA snapshot observations; in a majority of cases, images of the sources are also available. These radio sources are suitable for use in geodetic and astrometric experiments, and as phase-reference calibrators in high-sensitivity astronomical imaging. The VCS1 is the largest high-resolution radio survey ever undertaken and triples the number of sources available to the radio astronomy community for VLBI applications. In addition to the astrometric role, this survey can be used in active galactic nuclei, Galactic, gravitational lens, and cosmological studies.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cited by
Kellermann, K. I., Lister, M. L., Homan, D. C., Vermeulen, R. C., Cohen, M. H., Ros, E., Kadler, M., Zensus, J. A., & Kovalev, Y. Y. (2004) · The Astrophysical Journal · doi:10.1086/421289 · Cited by 419
A Preliminary VLBA Distance to the Core of Ophiuchus, with an Accuracy of 4%
Loinard, L., Torres, R. M., Mioduszewski, A. J., & Rodríguez, L. F. (2008) · The Astrophysical Journal · doi:10.1086/529548 · Cited by 286
Ojha, R. (2015) · Maryland Shared Open Access Repository (USMAI Consortium) · doi:10.13016/m2fajr-3qls · Cited by 253
van Weeren, R. J., Röttgering, H. J. A., Intema, H. T., Rudnick, L., Brüggen, M., Hoeft, M., & Oonk, J. B. R. (2012) · Astronomy & Astrophysics · doi:10.1051/0004-6361/201219000 · Cited by 139
Structure Effects for 3417 Celestial Reference Frame Radio Sources
Xu, M. H., Anderson, J. M., Heinkelmann, R., Lunz, S., Schuh, H., & Wang, G. L. (2019) · The Astrophysical Journal Supplement Series · doi:10.3847/1538-4365/ab16ea · Cited by 27
Metadata
- Authors
- Beasley, A. J., Gordon, D., Peck, A. B., Petrov, L., MacMillan, D. S., Fomalont, E. B., & Ma, C.
- Venue
- The Astrophysical Journal Supplement Series
- Publisher
- American Astronomical Society
- Published
- 2002-07
- Volume
- 141
- Issue
- 1
- Pages
- 13-21
- ISSN
- 0067-0049 (ISSN-L)
- 1538-4365
- OpenAlex
- W2101137486
- Cited by
- 330
- References
- 0
- FWCI
- 7.19
- Type
- journal article
- Language
- en
- Open access
- bronze
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: The VLBA Calibrator Survey—VCS1. https://app.cochat.ai/papers/10.1086/339806
- The paper
- Beasley, A. J., Gordon, D., Peck, A. B., Petrov, L., MacMillan, D. S., Fomalont, E. B., & Ma, C. (2002). The VLBA Calibrator Survey—VCS1. The Astrophysical Journal Supplement Series. https://doi.org/10.1086/339806
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
