On this page we summarize requested calibrator monitoring by VLBA observers per semester, starting with 21A. All collected data is publicly accessible through https://data.nrao.edu/ under project codes TCAL0009 or TPOL0003.
Observing Semester 23B
Proposal Code | Legacy Code | Type of Request | date of VLBA observation | calibrators to observe | Bands | SB id | date of VLA observation |
---|---|---|---|---|---|---|---|
23B-062 | BR253 | VLBA Triggered, VLA polcal requested | Pending | 3C279, J2136+0041, J2202+4216 | K (21.812-22.324 GHz on the VLBA) | 44530999 | |
BM546 | Continuation of BL286 from 21B (6 hours of EVPA calibrators every 4-6 months for 3 years) | Monthly for 3 years | same as for BL273 (1828+487, 1803+784, 1807+698, 0212+735, 2200+420, 2351+456, 1901+319, 2201+315, 0208+106, 0234+285, 0333+321, J2355+4950, 0430+052, 3C 138, 0415+379) | X - Q | 37501394 | ||
23B-137 | BL310 | EVPA measurements close to time of observation | 2023Dec05 | BL Lac and DA193 (both in TPOL0003) | K (21512-24024 MHz) | 44867309 |
Observing Semester 23A
Proposal Code | Legacy Code | Type of Request | date of VLBA observation | calibrators to observe | Bands | SB id | date of VLA observation |
---|---|---|---|---|---|---|---|
23A-198 | BN064A | VLBA Triggered, VLA polcal requested | BN064A1, 2023Oct28 BN064A2, 2024May29 (BN064A2, 2024Oct) | 3C279 (J1256-0547) and 3C286 (J1331+3030) | C (4412-4668,6540-6796 MHZ) K (23312-23824 MHz) Q (42912-43424 MHz) | 44546405 | 2023-11-14 2024-05-24 |
23A-198 | BN064C | VLBA Triggered, VLA polcal requested | BN064C1, 2024Jan30 | J0555+3948 | C (4412-4668,6540-6796 MHZ) U (15040-15552 MHz) K (23312-23824 MHz) Q (42912-43424 MHz) | 45040978 | |
Observing Semester 22B
Proposal Code | Legacy Code | Type of Request | date of VLBA observation | calibrators to observe | Bands | SB id | date of VLA observation |
---|---|---|---|---|---|---|---|
22B-260 | BT154 | within 10 days of VLBA observations. | BT154A 2022 Oct 18 BT154B 2023 Jan24 | OJ287, 0528+134, and 0235+164 | K,U,C (23.5-24 GHz, 15-15.5 GHz, 4.4-6.7GHz) | 42608628 | 2022 Oct 20 2023 Jan 17 |
22B-183 | BL299 | within 10 days of VLBA observations | BL299A 2022 Sep 24 | 0133+476, 0736+017, 0814+425, 1611+343, 1633+382, 1641+399, 2201+315 | 8176, 8304, 8432, 8560, 11974, 12104, 12232, 12360, 15176, 15304, 15432, 15560 MHz | 42764486 42768214 | 2022 Sep 26 2022 Sep 26 |
22B-120 | BL298 | Sep 25 to Oct 10 | BL298A 2022 Oct 01 BL298B 2022 Oct 02 | NRAO150, BLLac, 2023+335 (in theTPOL0003 monitoring list), 3C418 | 11976,12104,12232,12360, 15176,15304,15432,15560, 23376,23504,23632,23760, 42976,43104,43232,43360 MHz | 42779727 42783688 43831036 43831242 / 43831546 (linked) | 2022 Sep 29 (CBE error last two scans no data; only Q and K will be able to calibrate) 2022 Sep 27 2022 Oct 10 |
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