VERITAS regularly monitors a set of very high energy (VHE) blazars. Our goal is to build a deep archival data set on these sources. Observations will be scheduled at regular intervals. Note that observation scheduling may vary depending on the weather conditions, visibility, and for other reasons. The following table shows the list of regularly-monitored blazars. Click on a source name to open the list of VERITAS observation windows since 2009 to present.
| Source | RA (J2000) hh mm ss.ss |
DEC (J2000) dd mm ss.ss |
|---|---|---|
| 1ES 0229+200 | 02 32 48.59 | +20 17 16.92 |
| RGB J0710+591 | 07 10 30.10 | +59 08 20.96 |
| 1ES 1218+304 | 12 21 21.9 | +30 10 36.99 |
| PKS 1424+240 | 14 27 00.4 | +23 47 59.93 |
| H 1426+428 | 14 28 32.6 | +42 40 28.91 |
| 3C 66A | 02 22 39.6 | +43 02 07.97 |
| W Comae | 12 21 31.7 | +28 13 59.05 |
| BL Lac | 22 02 43.3 | +42 16 39.91 |
| Mrk 421 | 11 04 27.30 | +38 12 32.02 |
| Mrk 501 | 16 53 52.19 | +39 45 37.05 |
| M87 | 12 30 49.40 | +12 23 28.10 |
| 1ES 0414+009 | 04 16 53.00 | +01 04 54.07 |
| 1ES 0502+675 | 05 07 56.30 | +67 37 24.04 |
VERITAS also performs shallow observations of all VHE blazars with good visibility to VERITAS that are not explicitly summarized above. Our goal is to build at least 10 hours of exposure on each known northern VHE blazar by 2019. Generally VERITAS observes each of these blazars eight times per year. Each observations is typically 15 minutes long.
VERITAS and Swift perform coordinated multiwavelength observations on selected blazars. The following table shows the scheduled dates for the upcoming simultaneous observations.
| Source Name | Scheduled Date |
|---|---|
| H1426+428 | 2017-06-15 |
| Mrk 501 | 2017-06-17 |
| Mrk 501 | 2017-06-20 |
| Mrk 501 | 2017-06-23 |
| Mrk 501 | 2017-06-26 |
| BL Lac | 2017-06-24 |
| BL Lac | 2017-07-02 |
Table Last updated 2021-06-17 04:27:03.176491
Note that the observation schedule might vary dependent on weather conditions and for other reasons. If you are interested in organizing a joint multiwavelength campaign with VERITAS please contact theVERITAS spokesperson