COVER INFORMATION Station: MEDICINA (Code Mc ) Experiment: A detailed study of the H2O gigamaser, and of its polarization, in TXS22 Exp. Code: ES084B Schedule Version: 2.00 Processed by SCHED version: 11.40 Release 11.4. March 14, 2015 PI: G. Surcis Address: INAF - Osservatorio Astronomico di Cagliari Via della Scienza 5 I-09047 Selargius (Cagliari) Italy Phone: +39 3408100869 EMAIL: gabriele.surcis@inaf.it Fax: Phone during observation: +39 3408100869 Observing mode: Observations of TXS2226-184 at 22 GHz (512 Mb/s) NO phase- Notes: phase-cal OFF source = TXS2226-184 Schedule for MEDICINA (Code Mc ) Page 2 A detailed study of the H2O gigamaser, and of its polarization, in TXS22 UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Sat 9 Jun 2018 Day 160 --- Next scan frequencies: 21678.49 21678.49 21689.49 21689.49 21700.49 21700.49 21711.49 21711.49 Next BBC frequencies: 178.49 178.49 189.49 189.49 200.49 200.49 211.49 211.49 Next scan bandwidths: 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 02 00 00 J2202+4216 19 56 11 66.9 444.1 -2.1 -73.7 0 0 02 00 00 02 10 00 =VR422201 20 06 13 68.7 445.5 -2.0 -74.1 600 39 02 00 01 Next scan frequencies: 21667.62 21667.62 21678.62 21678.62 21689.61 21689.61 21700.61 21700.61 Next BBC frequencies: 167.62 167.62 178.62 178.62 189.61 189.61 200.61 200.61 02 11 45 TXS 20 07 58 19.5 504.1 -2.4 -26.1 2 39 02 11 45 02 13 45 --- 20 09 58 19.7 504.6 -2.3 -25.8 120 46 02 11 46 02 14 15 TXS 20 10 28 19.8 504.7 -2.3 -25.7 27 46 02 14 15 02 22 15 --- 20 18 30 20.6 506.5 -2.2 -24.5 480 77 02 14 16 02 22 45 TXS 20 19 00 20.6 506.6 -2.2 -24.4 27 77 02 22 45 02 32 45 --- 20 29 01 21.6 509.0 -2.0 -22.8 600 116 02 22 46 02 33 15 TXS 20 29 32 21.6 509.1 -2.0 -22.7 27 116 02 33 15 02 43 15 --- 20 39 33 22.5 511.5 -1.8 -21.0 600 155 02 33 16 02 43 45 TXS 20 40 03 22.5 511.6 -1.8 -20.9 27 155 02 43 45 02 53 45 --- 20 50 05 23.4 514.0 -1.7 -19.2 600 193 02 43 46 02 54 15 TXS 20 50 35 23.4 514.1 -1.7 -19.1 27 193 02 54 15 03 04 15 --- 21 00 37 24.1 516.6 -1.5 -17.3 600 232 02 54 16 Next scan frequencies: 21678.49 21678.49 21689.49 21689.49 21700.49 21700.49 21711.49 21711.49 Next BBC frequencies: 178.49 178.49 189.49 189.49 200.49 200.49 211.49 211.49 03 08 25 J2202+4216 21 04 47 79.1 456.3 -1.0 -73.6 136 232 03 08 25 03 16 25 =VR422201 21 12 49 80.6 458.8 -0.8 -72.5 480 263 03 08 26 03 19 25 3C48 21 15 49 39.0 438.9 -4.4 -56.8 92 263 03 19 25 03 29 25 --- 21 25 51 40.8 440.4 -4.2 -57.2 600 301 03 19 26 Next scan frequencies: 21667.62 21667.62 21678.62 21678.62 21689.61 21689.61 21700.61 21700.61 Next BBC frequencies: 167.62 167.62 178.62 178.62 189.61 189.61 200.61 200.61 03 31 20 TXS 21 27 46 25.8 523.5 -1.0 -12.3 0 301 03 31 20 03 33 05 --- 21 29 31 25.9 524.0 -1.0 -12.0 105 308 03 31 21 03 33 35 TXS 21 30 01 25.9 524.1 -1.0 -11.9 27 308 03 33 35 03 41 50 --- 21 38 18 26.3 526.2 -0.9 -10.3 495 340 03 33 36 03 42 20 TXS 21 38 48 26.3 526.4 -0.9 -10.2 27 340 03 42 20 03 52 20 --- 21 48 50 26.7 529.0 -0.7 -8.2 600 379 03 42 21 Schedule for MEDICINA (Code Mc ) Page 3 A detailed study of the H2O gigamaser, and of its polarization, in TXS22 UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Sat 9 Jun 2018 Day 160 --- 03 52 20 TXS 21 48 50 26.7 529.0 -0.7 -8.2 -3 379 No stop 03 57 20 --- 21 53 50 26.8 530.3 -0.6 -7.3 297 398 03 52 21 Next scan frequencies: 21678.49 21678.49 21689.49 21689.49 21700.49 21700.49 21711.49 21711.49 Next BBC frequencies: 178.49 178.49 189.49 189.49 200.49 200.49 211.49 211.49 04 01 00 3C48 21 57 31 46.4 445.3 -3.7 -58.2 102 398 04 01 00 04 11 00 --- 22 07 33 48.2 446.9 -3.5 -58.4 600 437 04 01 01 04 14 35 J2202+4216 22 11 08 87.4 573.4 0.1 32.1 46 437 04 14 35 04 22 35 =VR422201 22 19 10 86.4 594.2 0.3 51.5 480 468 04 14 36 Next scan frequencies: 21667.62 21667.62 21678.62 21678.62 21689.61 21689.61 21700.61 21700.61 Next BBC frequencies: 167.62 167.62 178.62 178.62 189.61 189.61 200.61 200.61 04 24 40 TXS 22 21 15 27.4 537.6 -0.1 -1.8 2 468 04 24 40 04 26 40 --- 22 23 15 27.4 538.1 -0.1 -1.4 120 475 04 24 41 04 27 10 TXS 22 23 45 27.4 538.3 -0.1 -1.3 27 475 04 27 10 04 35 10 --- 22 31 47 27.4 540.4 0.0 0.3 480 506 04 27 11 04 35 40 TXS 22 32 17 27.4 540.6 0.0 0.4 27 506 04 35 40 04 45 40 --- 22 42 18 27.3 543.2 0.2 2.4 600 545 04 35 41 04 46 10 TXS 22 42 48 27.3 543.4 0.2 2.5 27 545 04 46 10 04 56 10 --- 22 52 50 27.2 546.1 0.4 4.5 600 584 04 46 11 04 56 40 TXS 22 53 20 27.2 546.2 0.4 4.6 27 584 04 56 40 05 06 40 --- 23 03 22 26.9 548.8 0.6 6.6 600 622 04 56 41 Next scan frequencies: 21678.49 21678.49 21689.49 21689.49 21700.49 21700.49 21711.49 21711.49 Next BBC frequencies: 178.49 178.49 189.49 189.49 200.49 200.49 211.49 211.49 05 10 55 J2202+4216 23 07 37 78.2 625.1 1.1 74.0 147 622 05 10 55 05 18 55 =VR422201 23 15 39 76.8 627.0 1.2 74.5 480 653 05 10 56 Next scan frequencies: 21667.62 21667.62 21678.62 21678.62 21689.61 21689.61 21700.61 21700.61 Next BBC frequencies: 167.62 167.62 178.62 178.62 189.61 189.61 200.61 200.61 05 21 00 TXS 23 17 44 26.5 552.6 0.8 9.4 20 653 05 21 00 05 23 00 --- 23 19 44 26.4 553.2 0.8 9.8 120 661 05 21 01 05 23 30 TXS 23 20 15 26.4 553.3 0.8 9.9 27 661 05 23 30 05 31 30 --- 23 28 16 26.0 555.4 1.0 11.5 480 692 05 23 31 05 32 00 TXS 23 28 46 26.0 555.5 1.0 11.6 27 692 05 32 00 05 42 00 --- 23 38 48 25.5 558.1 1.1 13.5 600 730 05 32 01 Schedule for MEDICINA (Code Mc ) Page 4 A detailed study of the H2O gigamaser, and of its polarization, in TXS22 UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Sat 9 Jun 2018 Day 160 --- 05 42 30 TXS 23 39 18 25.4 558.2 1.2 13.6 27 730 05 42 30 05 52 30 --- 23 49 19 24.8 560.8 1.3 15.4 600 769 05 42 31 Next scan frequencies: 21678.49 21678.49 21689.49 21689.49 21700.49 21700.49 21711.49 21711.49 Next BBC frequencies: 178.49 178.49 189.49 189.49 200.49 200.49 211.49 211.49 05 56 25 J2202+4216 23 53 15 70.1 633.5 1.8 74.4 135 769 05 56 25 06 04 25 =VR422201 00 01 16 68.6 634.6 2.0 74.1 480 800 05 56 26 Next scan frequencies: 21667.62 21667.62 21678.62 21678.62 21689.61 21689.61 21700.61 21700.61 Next BBC frequencies: 167.62 167.62 178.62 178.62 189.61 189.61 200.61 200.61 06 06 55 TXS 00 03 47 23.9 564.4 1.6 18.0 52 800 06 06 55 06 07 55 --- 00 04 47 23.8 564.6 1.6 18.2 60 804 06 06 56 06 08 25 TXS 00 05 17 23.7 564.7 1.6 18.3 27 804 06 08 25 06 17 25 --- 00 14 18 23.0 567.0 1.7 19.9 540 839 06 08 26 06 17 55 TXS 00 14 48 23.0 567.1 1.7 20.0 27 839 06 17 55 06 27 55 --- 00 24 50 22.2 569.5 1.9 21.7 600 877 06 17 56 06 28 25 TXS 00 25 20 22.1 569.6 1.9 21.8 27 877 06 28 25 06 38 25 --- 00 35 22 21.2 572.0 2.1 23.4 600 916 06 28 26 06 38 55 TXS 00 35 52 21.1 572.1 2.1 23.5 27 916 06 38 55 06 48 55 --- 00 45 54 20.2 574.4 2.3 25.1 600 955 06 38 56 06 49 25 TXS 00 46 24 20.1 574.5 2.3 25.2 27 955 06 49 25 06 59 25 --- 00 56 25 19.1 576.8 2.4 26.7 600 993 06 49 26 Next scan frequencies: 21678.49 21678.49 21689.49 21689.49 21700.49 21700.49 21711.49 21711.49 Next BBC frequencies: 178.49 178.49 189.49 189.49 200.49 200.49 211.49 211.49 07 02 55 J2202+4216 00 59 56 58.3 641.9 2.9 70.8 120 993 07 02 55 07 10 55 =VR422201 01 07 57 56.9 642.8 3.1 70.2 480 1024 07 02 56 Next scan frequencies: 21667.62 21667.62 21678.62 21678.62 21689.61 21689.61 21700.61 21700.61 Next BBC frequencies: 167.62 167.62 178.62 178.62 189.61 189.61 200.61 200.61 07 12 25 TXS 01 09 27 17.6 579.7 2.7 28.6 2 1024 07 12 25 07 13 25 --- 01 10 28 17.5 579.9 2.7 28.8 60 1028 07 12 26 07 13 55 TXS 01 10 58 17.5 580.0 2.7 28.8 27 1028 07 13 55 07 22 55 --- 01 19 59 16.4 582.0 2.8 30.1 540 1063 07 13 56 07 23 25 TXS 01 20 29 16.3 582.1 2.8 30.2 27 1063 07 23 25 07 33 25 --- 01 30 31 15.1 584.2 3.0 31.5 600 1101 07 23 26 Schedule for MEDICINA (Code Mc ) Page 5 A detailed study of the H2O gigamaser, and of its polarization, in TXS22 UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Sat 9 Jun 2018 Day 160 --- 07 33 55 TXS 01 31 01 15.1 584.3 3.0 31.6 27 1101 07 33 55 07 43 55 --- 01 41 03 13.8 586.4 3.2 32.9 600 1140 07 33 56 07 44 25 TXS 01 41 33 13.7 586.5 3.2 33.0 27 1140 07 44 25 07 46 45 --- 01 43 53 13.4 587.0 3.2 33.3 140 1149 07 44 26 Next scan frequencies: 21678.49 21678.49 21689.49 21689.49 21700.49 21700.49 21711.49 21711.49 Next BBC frequencies: 178.49 178.49 189.49 189.49 200.49 200.49 211.49 211.49 07 50 00 J2202+4216 01 47 09 50.1 647.3 3.7 67.2 111 1149 07 50 00 08 00 00 =VR422201 01 57 10 48.4 648.4 3.9 66.3 600 1188 07 50 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess218.K512line --- WARNING --- This group does not match an entry in the frequency catalog. This might be ok because the catalog is not complete. But be very careful to be sure that the setup is correct. Setup group: 5 Station: MEDICINA Total bit rate: 512 Format: VDIF Bits per sample: 2 Sample rate: 32.000 Number of channels: 8 DBE type: DBBC_DDC Speedup factor: 1.00 Disk used to record data. 1st LO= 21500.00 21500.00 21500.00 21500.00 21500.00 21500.00 21500.00 21500.00 Net SB= U U U U U U U U IF SB = U U U U U U U U Pol. = RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 9 2 10 3 11 4 12 BBC SB= U U U U U U U U IF = A1 C1 A1 C1 A1 C1 A1 C1 The following frequency sets based on these setups were used. Frequency Set: 2 Based on FREQ, BW, and/or DOPPLER in schedule. Used with PCAL = off LO sum= 21678.49 21678.49 21689.49 21689.49 21700.49 21700.49 21711.49 21711.49 BBC fr= 178.49 178.49 189.49 189.49 200.49 200.49 211.49 211.49 Bandwd= 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 Matching frequency sets: 2 6 Frequency Set: 8 Based on FREQ, BW, and/or DOPPLER in schedule. Used with PCAL = off LO sum= 21667.62 21667.62 21678.62 21678.62 21689.61 21689.61 21700.61 21700.61 BBC fr= 167.62 167.62 178.62 178.62 189.61 189.61 200.61 200.61 Bandwd= 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 Matching frequency sets: 8 11 Track assignments are: track1= 1, 2, 3, 4, 5, 6, 7, 8 barrel=roll_off POSITIONS OF SOURCES USED IN RECORDING SCANS Source Source position (RA/Dec) Error (B1950) (J2000) (Date) (mas) * TXS 22 26 30.065630 * 22 29 12.494600 22 30 11.506106 0.00 -18 26 09.57617 *-18 10 47.24200 -18 05 04.47873 0.00 From catalog imbedded in main SCHED input file. Doppler based on heliocentric frame and radio definition. Velocities: 7571.10 7571.10 7422.90 7422.90 7274.70 7274.70 7126.30 7126.30 * 3C48 01 34 49.826431 * 01 37 41.299497 01 38 43.011379 0.58 J0137+3309 32 54 20.25962 * 33 09 35.13380 33 14 53.08939 0.56 0134+329 /home/jops/sched_11.4mod/catalogs/sources.gsfc J0137+33 GSFC 2015a astro solution, unpublished 79 observations. VR422201 22 00 39.362505 * 22 02 43.291372 22 03 29.206064 0.00 * J2202+4216 42 02 08.59077 * 42 16 39.97990 42 21 46.29665 0.00 BLLAC /home/jops/sched_11.4mod/catalogs/sources.gsfc 2200+420 GSFC 2015a astro solution, unpublished 51226 observations. J2202+42 SOURCE SCAN SUMMARY FOR SOURCES LISTED ABOVE Scan hours are for recording scans only. Baseline hours are only counted for scans above horizon at both ends. Source Setup file Frequency sets Observing hours (duplicates not shown) Scan Baseline TXS sess218.K512line 8 9 10 12 13 14 3.789 75.811 3C48 sess218.K512line 1 2 3 4 5 7 0.333 6.960 J2202+4216 sess218.K512line 1 2 3 4 5 7 1.000 18.400 EFFECT OF SOLAR CORONA The solar corona can cause unstable phases for sources too close to the Sun. SCHED provides warnings at individual scans for distances less than 10 degrees. The distance from the Sun to each source in this schedule is: Source Sun distance (deg) TXS 105.6 3C48 47.1 J2202+4216 86.0 Barry Clark estimates from predictions by Ketan Desai of IPM scattering sizes that the Sun will cause amplitude reductions on the longest VLBA baselines at a solar distance of 60deg F^(-0.6) where F is in GHz. For common VLBI bands, this is: 327 MHz 117. deg 610 MHz 81. deg 1.6 GHz 45. deg 2.3 GHz 36. deg 5.0 GHz 23. deg 8.4 GHz 17. deg 15.0 GHz 12. deg 22.0 GHz 9. deg 43.0 GHz 6. deg