Table 3
Summary of the VVVX observational campaign.
| Area name | Area (deg2) | No. of Tiles | RA Range (h) | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| VVV bulge | 313 | 196 | 17h–19h | Ks | Ks | JHKs | JKs | − | Ks | Ks | − |
| VVV disk | 232 | 152 | 12h–19h | Ks | Ks | Ks | Ks | − | − | Ks | − |
| Disk Long. +20 | 90 | 56 | 18h–19h | Ks | JHKs | Ks | Ks | − | − | Ks | − |
| Disk Long. +230 | 292 | 180 | 07h–12h | − | − | JHKs | Ks | Ks | Ks | Ks | Ks |
| Low Ext. Bulge | 90 | 56 | 18h–19h | JHKs | − | Ks | Ks | − | − | − | − |
| High Ext. Bulge | 90 | 56 | 17h–18h | Ks | JHKs | Ks | Ks | − | − | Ks | − |
| Low Ext. Disk | 266 | 166 | 07h–18h | Ks | JHKs | JHKs | JHKs | Ks | Ks | Ks | Ks |
| High Ext. Disk | 266 | 166 | 07h–17h | Ks | JHKs | JHKs | JHKs | Ks | Ks | Ks | Ks |
Notes. J and H observations were 97% and 94% completed by the end of 2019 season. The remaining observations were taken from 2020 to 2023, mostly repeated observations. The Ks band was ≳99% completed by the end of the 2022 season. Only residual Ks observations, comprising ≲1% of the total, were taken in year 2023 to complete the planned observations.
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