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
833
in 1 band (i)
Nights observed
25
33.3 exposures per night
Baseline
25 d
Feb 25, 2023 – Mar 21, 2023
Open-shutter time
27.8 h
summed exposure time

Exposures per day

How often the survey observed, split by band. A gap is a day 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 25, 2023Mar 3, 2023Mar 9, 2023Mar 15, 2023Mar 21, 2023340Show ggShow all bandsiShow rrShow zgzgShow ziziShow zrzrFeb 25, 2023 — 33 exposures (i)Feb 26, 2023 — 33 exposures (i)Feb 27, 2023 — 34 exposures (i)Feb 28, 2023 — 33 exposures (i)Mar 1, 2023 — 33 exposures (i)Mar 2, 2023 — 34 exposures (i)Mar 3, 2023 — 33 exposures (i)Mar 4, 2023 — 33 exposures (i)Mar 5, 2023 — 34 exposures (i)Mar 6, 2023 — 33 exposures (i)Mar 7, 2023 — 33 exposures (i)Mar 8, 2023 — 34 exposures (i)Mar 9, 2023 — 33 exposures (i)Mar 10, 2023 — 33 exposures (i)Mar 11, 2023 — 34 exposures (i)Mar 12, 2023 — 33 exposures (i)Mar 13, 2023 — 33 exposures (i)Mar 14, 2023 — 34 exposures (i)Mar 15, 2023 — 33 exposures (i)Mar 16, 2023 — 33 exposures (i)Mar 17, 2023 — 34 exposures (i)Mar 18, 2023 — 33 exposures (i)Mar 19, 2023 — 33 exposures (i)Mar 20, 2023 — 34 exposures (i)Mar 21, 2023 — 33 exposures (i)

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 days that did have data. Hover a point for the running total and what it added.

Feb 25, 2023Mar 3, 2023Mar 9, 2023Mar 15, 2023Mar 21, 20238330Feb 25, 2023 — 33 added, 33 totalFeb 26, 2023 — 33 added, 66 totalFeb 27, 2023 — 34 added, 100 totalFeb 28, 2023 — 33 added, 133 totalMar 1, 2023 — 33 added, 166 totalMar 2, 2023 — 34 added, 200 totalMar 3, 2023 — 33 added, 233 totalMar 4, 2023 — 33 added, 266 totalMar 5, 2023 — 34 added, 300 totalMar 6, 2023 — 33 added, 333 totalMar 7, 2023 — 33 added, 366 totalMar 8, 2023 — 34 added, 400 totalMar 9, 2023 — 33 added, 433 totalMar 10, 2023 — 33 added, 466 totalMar 11, 2023 — 34 added, 500 totalMar 12, 2023 — 33 added, 533 totalMar 13, 2023 — 33 added, 566 totalMar 14, 2023 — 34 added, 600 totalMar 15, 2023 — 33 added, 633 totalMar 16, 2023 — 33 added, 666 totalMar 17, 2023 — 34 added, 700 totalMar 18, 2023 — 33 added, 733 totalMar 19, 2023 — 33 added, 766 totalMar 20, 2023 — 34 added, 800 totalMar 21, 2023 — 33 added, 833 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 rg — 833 exposures (22% of 3,839) · Show gi — 833 exposures (22% of 3,839) · Show all bandszr — 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 rr83422%g — 833 exposures (22% of 3,839) · Show gg83322%i — 833 exposures (22% of 3,839) · Show all bandsi83322%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 i.

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