VWDB Višnjan–Washington Sky Survey
Stand-in data
STAND-IN DATA. This catalog contains 2,279 ZTF detections and 1,000,000 synthetic fixture rows — NOT Visnjan-Washington observations. Stand-in data is loaded while the VW Data Analysis Pipeline is built. Do not use these measurements for science.

Statistics

The survey's observing record, computed from survey.exposures. These are ZTF's observing statistics, not Visnjan-Washington's — the stand-in notice above applies to every plot here as much as it does to a search result, and the synthetic fixture is excluded by default because its cadence is invented (a perfectly uniform one exposure every 0.01 day), not observed.

Clump by day week month Dates all 2018 2019 2020 2021 2022 2023 2024 2025 Band g i r zg zi zr all Synthetic fixture included
Exposures
834
in 1 band (r)
Nights observed
25
33.4 exposures per night
Baseline
25 d
Feb 25, 2023 – Mar 21, 2023
Open-shutter time
27.8 h
summed exposure time

Exposures per month

How often the survey observed, split by band. A gap is a month it didn't run, not one with nothing to see. Hover a column for its date, its total and how that total divides between bands, or click a band in the legend to drop it from the chart.

Feb 1, 2023Feb 8, 2023Feb 15, 2023Feb 22, 2023Mar 1, 20237000Show ggShow iiShow all bandsrShow zgzgShow ziziShow zrzrFeb 2023 — 134 exposures (r)Mar 2023 — 700 exposures (r)

Cumulative exposures

The same data, accumulated — flat stretches are when the survey was not running, which the bar chart above makes easy to miss among the months that did have data. Hover a point for the running total and what it added.

Feb 1, 2023Feb 8, 2023Feb 15, 2023Feb 22, 2023Mar 1, 20238340Feb 2023 — 134 added, 134 totalMar 2023 — 700 added, 834 total

Exposures by filter

How the observing above divides between bands — always the whole split, whichever band is currently picked. Click a slice to show only that band in the charts above, or click the one already picked to come back to all of them.

r — 834 exposures (22% of 3,839) · Show all bandsg — 833 exposures (22% of 3,839) · Show gi — 833 exposures (22% of 3,839) · Show izr — 666 exposures (17% of 3,839) · Show zrzg — 567 exposures (15% of 3,839) · Show zgzi — 106 exposures (3% of 3,839) · Show zi3,839exposuresr — 834 exposures (22% of 3,839) · Show all bandsr83422%g — 833 exposures (22% of 3,839) · Show gg83322%i — 833 exposures (22% of 3,839) · Show ii83322%zr — 666 exposures (17% of 3,839) · Show zrzr66617%zg — 567 exposures (15% of 3,839) · Show zgzg56715%zi — 106 exposures (3% of 3,839) · Show zizi1063%

Revisits and light-curve length

No object has a linked detection in r.

Same data as JSON: /api/statistics?fixture=show&band=r