COVER INFORMATION Station: IRBENE (Code Ir ) Experiment: Ar fringe test (LG) Exp. Code: FT038 Schedule Version: 1.00 Processed by SCHED version: 11.50 Development version 11.5. Started Apr. 2 PI: campbell Address: JIVE Phone: 0521-596-534 EMAIL: campbell@jive.eu Fax: Phone during observation: Observing mode: Notes: 2 modes: everyone at 32MH channels & mixed-BW = user L-band Gbps Ar same in both modes Schedule for IRBENE (Code Ir ) Page 2 Ar fringe test (LG) 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 ---------------------------------------------------------------------------------------- --- Thu 20 Feb 2020 Day 51 --- Next scan frequencies: 1626.50 1626.50 1626.50 1626.50 1690.50 1690.50 1690.50 1690.50 Next BBC frequencies: 276.50 276.50 276.50 276.50 340.50 340.50 340.50 340.50 Next scan bandwidths: 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 08 00 00 J1436+2321 19 26 21 28.9 -91.7 4.8 35.7 0 0 08 00 00 08 10 00 =1434+235 19 36 23 27.6 -89.5 5.0 35.7 600 77 08 00 01 08 11 00 J1436+2321 19 37 23 27.5 -89.3 5.0 35.7 57 77 08 11 00 08 15 00 =1434+235 19 41 23 26.9 -88.5 5.1 35.7 240 108 08 11 01 08 20 00 J1436+2321 19 46 24 26.3 -87.4 5.1 35.7 297 108 08 20 00 08 27 00 =1434+235 19 53 25 25.3 -86.0 5.3 35.6 420 162 08 20 01 Next scan frequencies: 1610.50 1610.50 1610.50 1610.50 1642.50 1642.50 1642.50 1642.50 1674.50 1674.50 1674.50 1674.50 1706.50 1706.50 1706.50 1706.50 Next BBC frequencies: 260.50 260.50 260.50 260.50 292.50 292.50 292.50 292.50 324.50 324.50 324.50 324.50 356.50 356.50 356.50 356.50 Next scan bandwidths: 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 08 30 00 J1436+2321 19 56 26 24.9 -85.4 5.3 35.6 177 162 08 30 00 08 34 00 =1434+235 20 00 27 24.4 -84.5 5.4 35.5 240 193 08 30 25 Next scan frequencies: 1626.50 1626.50 1626.50 1626.50 1690.50 1690.50 1690.50 1690.50 Next BBC frequencies: 276.50 276.50 276.50 276.50 340.50 340.50 340.50 340.50 Next scan bandwidths: 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 08 35 00 J1436+2321 20 01 27 24.2 -84.3 5.4 35.5 57 193 08 35 00 08 39 00 =1434+235 20 05 27 23.7 -83.5 5.5 35.5 240 224 08 35 25 08 44 00 J1436+2321 20 10 28 23.0 -82.5 5.5 35.4 297 224 08 44 00 08 51 00 =1434+235 20 17 29 22.1 -81.1 5.7 35.2 420 278 08 44 01 Next scan frequencies: 1610.50 1610.50 1610.50 1610.50 1642.50 1642.50 1642.50 1642.50 1674.50 1674.50 1674.50 1674.50 1706.50 1706.50 1706.50 1706.50 Next BBC frequencies: 260.50 260.50 260.50 260.50 292.50 292.50 292.50 292.50 324.50 324.50 324.50 324.50 356.50 356.50 356.50 356.50 Next scan bandwidths: 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 08 54 00 J1436+2321 20 20 30 21.7 -80.4 5.7 35.2 177 278 08 54 00 08 58 00 =1434+235 20 24 31 21.2 -79.6 5.8 35.1 240 309 08 54 25 Schedule for IRBENE (Code Ir ) Page 3 Ar fringe test (LG) 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 ---------------------------------------------------------------------------------------- --- Thu 20 Feb 2020 Day 51 --- Next scan frequencies: 1626.50 1626.50 1626.50 1626.50 1690.50 1690.50 1690.50 1690.50 Next BBC frequencies: 276.50 276.50 276.50 276.50 340.50 340.50 340.50 340.50 Next scan bandwidths: 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 08 59 00 J1436+2321 20 25 31 21.1 -79.4 5.8 35.0 57 309 08 59 00 09 03 00 =1434+235 20 29 31 20.5 -78.6 5.9 34.9 240 340 08 59 25 09 08 00 J1436+2321 20 34 32 19.9 -77.6 5.9 34.8 297 340 09 08 00 09 15 00 =1434+235 20 41 33 18.9 -76.2 6.1 34.6 420 394 09 08 01 Next scan frequencies: 1610.50 1610.50 1610.50 1610.50 1642.50 1642.50 1642.50 1642.50 1674.50 1674.50 1674.50 1674.50 1706.50 1706.50 1706.50 1706.50 Next BBC frequencies: 260.50 260.50 260.50 260.50 292.50 292.50 292.50 292.50 324.50 324.50 324.50 324.50 356.50 356.50 356.50 356.50 Next scan bandwidths: 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 09 18 00 J1436+2321 20 44 34 18.6 -75.6 6.1 34.4 177 394 09 18 00 09 22 00 =1434+235 20 48 34 18.0 -74.8 6.2 34.3 240 425 09 18 25 Next scan frequencies: 1626.50 1626.50 1626.50 1626.50 1690.50 1690.50 1690.50 1690.50 Next BBC frequencies: 276.50 276.50 276.50 276.50 340.50 340.50 340.50 340.50 Next scan bandwidths: 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 09 23 00 J1436+2321 20 49 35 17.9 -74.6 6.2 34.3 57 425 09 23 00 09 27 00 =1434+235 20 53 35 17.4 -73.8 6.3 34.1 240 456 09 23 25 09 32 00 J1436+2321 20 58 36 16.7 -72.8 6.4 33.9 297 456 09 32 00 09 39 00 =1434+235 21 05 37 15.9 -71.4 6.5 33.6 420 510 09 32 01 Next scan frequencies: 1610.50 1610.50 1610.50 1610.50 1642.50 1642.50 1642.50 1642.50 1674.50 1674.50 1674.50 1674.50 1706.50 1706.50 1706.50 1706.50 Next BBC frequencies: 260.50 260.50 260.50 260.50 292.50 292.50 292.50 292.50 324.50 324.50 324.50 324.50 356.50 356.50 356.50 356.50 Next scan bandwidths: 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 09 42 00 J1436+2321 21 08 38 15.5 -70.8 6.5 33.5 177 510 09 42 00 09 46 00 =1434+235 21 12 38 15.0 -70.0 6.6 33.3 240 541 09 42 25 09 47 00 J1436+2321 21 13 39 14.8 -69.8 6.6 33.2 57 541 09 47 00 09 51 00 =1434+235 21 17 39 14.3 -69.0 6.7 33.0 240 572 09 47 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess120.L1024ar32 --- 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: 8 Station: IRBENE Total bit rate: 1024 Format: VDIF Bits per sample: 2 Sample rate: 64.000 Number of channels: 8 DBE type: DBBC_DDC Speedup factor: 1.00 Disk used to record data. 1st LO= 1350.00 1350.00 1350.00 1350.00 1350.00 1350.00 1350.00 1350.00 Net SB= L L U U L L U U IF SB = U U U U U U U U Pol. = RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 9 1 9 2 10 2 10 BBC SB= L L U U L L U U IF = A2 C2 A2 C2 A2 C2 A2 C2 The following frequency sets based on these setups were used. Frequency Set: 3 Setup file default. Used with PCAL = off LO sum= 1626.50 1626.50 1626.50 1626.50 1690.50 1690.50 1690.50 1690.50 BBC fr= 276.50 276.50 276.50 276.50 340.50 340.50 340.50 340.50 Bandwd= 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 Matching frequency sets: 3 Track assignments are: track1= 1, 2, 3, 4, 5, 6, 7, 8 barrel=roll_off ======== Setup file: sess120.L1024ar --- 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: 4 Station: IRBENE Total bit rate: 1024 Format: VDIF Bits per sample: 2 Sample rate: 32.000 Number of channels: 16 DBE type: DBBC_DDC Speedup factor: 1.00 Disk used to record data. 1st LO= 1350.00 1350.00 1350.00 1350.00 1350.00 1350.00 1350.00 1350.00 1350.00 1350.00 1350.00 1350.00 1350.00 1350.00 1350.00 1350.00 Net SB= L L U U L L U U L L U U L L U U IF SB = U U U U U U U U U U U U U U U U Pol. = RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 9 1 9 2 10 2 10 3 11 3 11 4 12 4 12 BBC SB= L L U U L L U U L L U U L L U U IF = A2 C2 A2 C2 A2 C2 A2 C2 A2 C2 A2 C2 A2 C2 A2 C2 The following frequency sets based on these setups were used. Frequency Set: 7 Setup file default. Used with PCAL = off LO sum= 1610.50 1610.50 1610.50 1610.50 1642.50 1642.50 1642.50 1642.50 1674.50 1674.50 1674.50 1674.50 1706.50 1706.50 1706.50 1706.50 BBC fr= 260.50 260.50 260.50 260.50 292.50 292.50 292.50 292.50 324.50 324.50 324.50 324.50 356.50 356.50 356.50 356.50 Bandwd= 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 Matching frequency sets: 7 Track assignments are: track1= 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 barrel=roll_off POSITIONS OF SOURCES USED IN RECORDING SCANS Source Source position (RA/Dec) Error (B1950) (J2000) (Date) (mas) 1434+235 14 34 25.406175 * 14 36 40.981090 14 37 35.153111 0.06 * J1436+2321 23 34 03.14330 * 23 21 03.25988 23 15 42.25287 0.10 J1436+23 /home/guest/rmc/SCHED/sched11.5/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 272 observations. 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 J1436+2321 sess120.L1024ar 5 6 7 8 0.333 2.000 sess120.L1024ar32 1 2 3 4 0.900 5.050 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) J1436+2321 116.1 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