Using the NRAO Very Large Array (VLA) and an automated mapping pipeline, we produce images with 1.8" pixels, a typical rms of 0.15 mJy, and a resolution of 5". At the 1 mJy source detection threshold, there are ~90 sources per square degree, ~35% of which have resolved structure on scales from 2-30". 30% of the sources have counterparts in the ...

FIRST -- Faint Images of the Radio Sky at Twenty-cm -- is a project designed to produce the radio equivalent of the Palomar Observatory Sky Survey over 10,000 square degrees of the North and South Galactic Caps.

The current catalog is most easily accessed through the FIRST Search Page, which can be used to search the FIRST catalog by position and/or by other catalog parameters. The current sky area covered is shown in the coverage maps below:

FIRST -- Faint Images of the Radio Sky at Twenty-cm -- is a project designed to produce the radio equivalent of the Palomar Observatory Sky Survey over 10,000 square degrees of the North Galactic Cap. The survey uses the Very Large Array in "B" array.

2024年9月16日 · This catalog comprises the Faint Images of the Radio Sky at Twenty cm (FIRST) Survey. The FIRST survey began in 1993, and covers the north and south Galactic caps. The present 14Dec17 version is derived from the 1993 through 2011 observations.

The Faint Images of the Radio Sky at Twenty-cm (FIRST) project surveyed 10,575 square degrees of the North and South Galactic Caps at a frequency of 1.4 GHz using the NRAO Very Large Array (VLA). An automated mapping pipeline was used to generate images with 1.8" pixels, a typical rms of 0.15 milliJansky (mJy), and a resolution of 5.4".

2023年7月28日，谷歌DeepMind发布了全球首个控制机器人的视觉语言动作（VLA）模型RT-2。 其后，这个模型概念快速扩散到智驾领域。 VLA模型是在视觉语言模型（VLM）的基础上发展而来的。

使用美国国家射电天文台（NRAO）甚大阵列（VLA）和自动化图像处理流水线，FIRST巡天项目生成了1.8角秒像素、典型均方根值为0.15 mJy、分辨率为5角秒的图像。 在1 mJy源检测阈值下，每平方度有约90个源，其中约35%的源在2-30“的尺度上具有解析出的结构。 FIRST巡天30%的源能够在斯隆数字巡天找到对应体。 此镜像数据集包括星表和图像，图像数据存储于两个子目录下image/vla_first/data/和image/naro_first/，其中，第一个目录包含完整的数据，第二个目录是 …

On September 7, 2017, the Karl G. Jansky Very Large Array (VLA) pointed its antennas toward the northern sky and began one of the largest all-sky radio observations in 40 years. From its vantage point in New Mexico, the VLA Sky Survey (VLASS) will map 80 percent of the sky in three phases over seven years and is expected to catalog ...

甚大天线阵（英語： Very Large Array ，缩写VLA）是由27台25米口径的天线组成的射电望远镜阵列，位于美国 新墨西哥州的圣阿古斯丁平原上，海拔2124米，是世界上最大的综合孔径射电望远镜。