COVER INFORMATION Station: CAMBG32M (Code Cm ) Experiment: e-VLBI test preceding rt001 Exp. Code: te051 Schedule Version: 1.00 Processed by SCHED version: 6.05 June 2006 PI: Z. Paragi Address: JIVE Postbus 2 7990 AA Dwingeloo The Netherlands Phone: +31 (0)521 596 536 EMAIL: zparagi@jive.nl Fax: Phone during observation: +31 (0)521 596 500 Observing mode: Notes: Schedule for CAMBG32M (Code Cm ) Page 2 e-VLBI test preceding rt001 UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. For disks, the footages are really the GBytes TPStart: Tape motion start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) SYNC ---------------------------------------------------------------------------------------- --- Tue 20 Feb 2007 Day 51 --- ---------- ff ---------- Next scan frequencies: 4966.49 4966.49 4966.49 4966.49 4982.49 4982.49 4982.49 4982.49 4998.49 4998.49 4998.49 4998.49 5014.49 5014.49 5014.49 5014.49 Next BBC frequencies: 526.49 526.49 526.49 526.49 542.49 542.49 542.49 542.49 558.49 558.49 558.49 558.49 574.49 574.49 574.49 574.49 Next scan bandwidths: 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 12 00 00 0234+285 22 00 19 34.7 446.3 -4.6 -44.3 0 1 1 0 12 00 00 12 09 00 --- 22 09 21 36.1 448.0 -4.5 -44.4 540 F 1 35 12 00 01 ---------- ff ---------- 12 10 00 0234+285 22 10 21 36.2 448.2 -4.5 -44.4 45 1 1 35 12 10 00 12 19 00 --- 22 19 22 37.6 450.0 -4.3 -44.4 540 F 1 70 12 10 01 ---------- ff ---------- 12 20 00 0234+285 22 20 23 37.8 450.2 -4.3 -44.4 44 1 1 70 12 20 00 12 29 00 --- 22 29 24 39.1 452.0 -4.1 -44.4 540 F 1 105 12 20 01 ---------- ff ---------- 12 30 00 0234+285 22 30 24 39.3 452.2 -4.1 -44.4 44 1 1 105 12 30 00 12 39 00 --- 22 39 26 40.7 454.0 -4.0 -44.3 540 F 1 139 12 30 01 ---------- ff ---------- 12 40 00 0234+285 22 40 26 40.8 454.2 -4.0 -44.3 44 1 1 139 12 40 00 12 49 00 --- 22 49 27 42.2 456.1 -3.8 -44.1 540 F 1 174 12 40 01 ---------- ff ---------- 12 50 00 0234+285 22 50 28 42.4 456.3 -3.8 -44.1 44 1 1 174 12 50 00 12 59 00 --- 22 59 29 43.7 458.3 -3.6 -43.9 540 F 1 209 12 50 01 Schedule for CAMBG32M (Code Cm ) Page 3 e-VLBI test preceding rt001 UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. For disks, the footages are really the GBytes TPStart: Tape motion start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) SYNC ---------------------------------------------------------------------------------------- --- Tue 20 Feb 2007 Day 51 --- ---------- ff ---------- 13 00 00 0234+285 23 00 29 43.9 458.5 -3.6 -43.8 44 1 1 209 13 00 00 13 09 00 --- 23 09 31 45.3 460.5 -3.5 -43.5 540 F 1 244 13 00 01 ---------- ff ---------- 13 10 00 0234+285 23 10 31 45.4 460.7 -3.5 -43.5 44 1 1 244 13 10 00 13 19 00 --- 23 19 32 46.8 462.8 -3.3 -43.1 540 F 1 279 13 10 01 ---------- ff ---------- 13 20 00 0234+285 23 20 32 46.9 463.0 -3.3 -43.0 44 1 1 279 13 20 00 13 29 00 --- 23 29 34 48.3 465.2 -3.1 -42.5 540 F 1 314 13 20 01 ---------- ampcal ---------- 13 32 00 0010+405 23 32 34 76.7 503.9 -0.7 -28.6 70 1 1 314 13 32 00 13 41 00 --- 23 41 36 77.5 510.8 -0.5 -23.4 540 F 1 348 13 32 01 13 42 20 0026+346 23 42 56 70.9 509.6 -0.8 -22.3 36 1 1 348 13 42 20 13 51 20 --- 23 51 58 71.5 515.0 -0.6 -18.5 540 F 1 383 13 42 21 13 52 00 0026+346 23 52 38 71.6 515.4 -0.6 -18.2 22 1 1 383 13 52 00 14 01 00 --- 00 01 39 72.1 521.1 -0.5 -14.1 540 F 1 418 13 52 01 14 01 40 0026+346 00 02 19 72.1 521.5 -0.5 -13.7 22 1 1 418 14 01 40 14 10 40 --- 00 11 21 72.5 527.5 -0.3 -9.3 540 F 1 453 14 01 41 ---------- ampcal ---------- 14 12 00 0010+405 00 12 41 78.7 538.9 0.0 -0.9 28 1 1 453 14 12 00 14 21 00 --- 00 21 42 78.7 547.6 0.1 6.1 540 F 1 488 14 12 01 14 22 20 0026+346 00 23 03 72.8 535.5 -0.1 -3.4 27 1 1 488 14 22 20 14 31 20 --- 00 32 04 72.8 541.7 0.0 1.3 540 F 1 523 14 22 21 14 32 00 0026+346 00 32 44 72.8 542.2 0.1 1.6 22 1 1 523 14 32 00 14 41 00 --- 00 41 46 72.7 548.4 0.2 6.3 540 F 1 557 14 32 01 14 41 40 0026+346 00 42 26 72.7 548.9 0.2 6.6 22 1 1 557 14 41 40 14 50 40 --- 00 51 27 72.4 554.9 0.4 11.1 540 F 1 592 14 41 41 Schedule for CAMBG32M (Code Cm ) Page 4 e-VLBI test preceding rt001 UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. For disks, the footages are really the GBytes TPStart: Tape motion start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) SYNC ---------------------------------------------------------------------------------------- --- Tue 20 Feb 2007 Day 51 --- ---------- ampcal ---------- 14 52 00 0010+405 00 52 48 76.9 574.4 0.6 27.3 15 1 1 592 14 52 00 15 01 00 --- 01 01 49 76.1 580.7 0.8 32.0 540 F 1 627 14 52 01 15 02 20 0026+346 01 03 09 71.8 562.5 0.6 16.7 17 1 1 627 15 02 20 15 11 20 --- 01 12 11 71.2 568.0 0.7 20.6 540 F 1 662 15 02 21 15 12 00 0026+346 01 12 51 71.2 568.4 0.7 20.9 22 1 1 662 15 12 00 15 21 00 --- 01 21 52 70.4 573.6 0.9 24.5 540 F 1 697 15 12 01 15 21 40 0026+346 01 22 32 70.4 574.0 0.9 24.7 22 1 1 697 15 21 40 15 30 40 --- 01 31 34 69.6 578.8 1.0 28.0 540 F 1 732 15 21 41 ---------- ampcal ---------- 15 32 00 0010+405 01 32 54 72.4 597.9 1.3 43.4 16 1 1 732 15 32 00 15 41 00 --- 01 41 56 71.2 601.8 1.5 45.7 540 F 1 766 15 32 01 15 42 20 0026+346 01 43 16 68.4 584.6 1.2 31.7 19 1 1 766 15 42 20 15 51 20 --- 01 52 17 67.4 588.7 1.4 34.2 540 F 1 801 15 42 21 15 52 00 0026+346 01 52 57 67.3 589.0 1.4 34.4 23 1 1 801 15 52 00 16 01 00 --- 02 01 59 66.2 592.8 1.5 36.6 540 F 1 836 15 52 01 16 01 40 0026+346 02 02 39 66.1 593.1 1.6 36.8 24 1 1 836 16 01 40 16 10 40 --- 02 11 40 65.0 596.7 1.7 38.7 540 F 1 871 16 01 41 ---------- ampcal ---------- 16 12 00 0010+405 02 13 01 66.9 612.8 2.0 50.8 20 1 1 871 16 12 00 16 21 00 --- 02 22 02 65.5 615.4 2.1 51.7 540 F 1 906 16 12 01 16 22 20 0026+346 02 23 22 63.5 600.9 1.9 40.8 23 1 1 906 16 22 20 16 31 20 --- 02 32 24 62.2 603.9 2.0 42.3 540 F 1 941 16 22 21 16 32 00 0026+346 02 33 04 62.2 604.1 2.1 42.3 24 1 1 941 16 32 00 16 41 00 --- 02 42 05 60.9 607.0 2.2 43.5 540 F 1 975 16 32 01 16 41 40 0026+346 02 42 46 60.8 607.2 2.2 43.6 24 1 1 975 16 41 40 16 50 40 --- 02 51 47 59.5 609.8 2.4 44.6 540 F 1 1010 16 41 41 Schedule for CAMBG32M (Code Cm ) Page 5 e-VLBI test preceding rt001 UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. For disks, the footages are really the GBytes TPStart: Tape motion start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) SYNC ---------------------------------------------------------------------------------------- --- Tue 20 Feb 2007 Day 51 --- ---------- ampcal ---------- 16 52 00 0010+405 02 53 07 60.8 623.3 2.7 53.7 25 1 1 1010 16 52 00 17 01 00 --- 03 02 09 59.5 625.3 2.8 54.0 540 F 1 1045 16 52 01 17 02 20 0026+346 03 03 29 57.8 613.1 2.6 45.7 27 1 1 1045 17 02 20 17 11 20 --- 03 12 30 56.5 615.5 2.7 46.4 540 F 1 1080 17 02 21 17 12 00 0026+346 03 13 11 56.4 615.6 2.7 46.5 25 1 1 1080 17 12 00 17 21 00 --- 03 22 12 55.0 617.9 2.9 47.0 540 F 1 1115 17 12 01 17 21 40 0026+346 03 22 52 54.9 618.0 2.9 47.1 25 1 1 1115 17 21 40 17 30 40 --- 03 31 54 53.6 620.2 3.0 47.5 540 F 1 1150 17 21 41 ---------- ampcal ---------- 17 32 00 0010+405 03 33 14 54.7 631.6 3.3 54.2 28 1 1 1150 17 32 00 17 41 00 --- 03 42 15 53.3 633.3 3.5 54.1 540 F 1 1184 17 32 01 17 42 20 0026+346 03 43 36 51.8 622.8 3.2 48.0 30 1 1 1184 17 42 20 17 51 20 --- 03 52 37 50.4 624.8 3.4 48.2 540 F 1 1219 17 42 21 17 52 00 0026+346 03 53 17 50.3 624.9 3.4 48.2 25 1 1 1219 17 52 00 18 01 00 --- 04 02 19 48.9 626.8 3.5 48.4 540 F 1 1254 17 52 01 18 01 40 0026+346 04 02 59 48.8 627.0 3.6 48.4 25 1 1 1254 18 01 40 18 10 40 --- 04 12 00 47.5 628.8 3.7 48.5 540 F 1 1289 18 01 41 ---------- ampcal ---------- 18 12 00 0010+405 04 13 20 48.6 638.9 4.0 53.3 31 1 1 1289 18 12 00 18 21 00 --- 04 22 22 47.2 640.4 4.1 53.0 540 F 1 1324 18 12 01 18 22 20 0026+346 04 23 42 45.7 631.1 3.9 48.5 32 1 1 1324 18 22 20 18 31 20 --- 04 32 44 44.3 632.9 4.1 48.4 540 F 1 1359 18 22 21 18 32 00 0026+346 04 33 24 44.2 633.0 4.1 48.4 26 1 1 1359 18 32 00 18 41 00 --- 04 42 25 42.8 634.7 4.2 48.3 540 F 1 1393 18 32 01 18 41 40 0026+346 04 43 05 42.7 634.8 4.2 48.2 26 1 1 1393 18 41 40 18 50 40 --- 04 52 07 41.3 636.5 4.4 48.1 540 F 1 1428 18 41 41 Schedule for CAMBG32M (Code Cm ) Page 6 e-VLBI test preceding rt001 UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. For disks, the footages are really the GBytes TPStart: Tape motion start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) SYNC ---------------------------------------------------------------------------------------- --- Tue 20 Feb 2007 Day 51 --- ---------- ampcal ---------- 18 52 00 0010+405 04 53 27 42.6 645.5 4.7 51.5 33 1 1 1428 18 52 00 19 01 00 --- 05 02 28 41.2 646.9 4.8 50.9 540 F 1 1463 18 52 01 19 02 20 0026+346 05 03 49 39.5 638.6 4.6 47.8 34 1 1 1463 19 02 20 19 11 20 --- 05 12 50 38.2 640.2 4.7 47.5 540 F 1 1498 19 02 21 19 12 00 0026+346 05 13 30 38.1 640.3 4.7 47.4 26 1 1 1498 19 12 00 19 21 00 --- 05 22 32 36.7 641.9 4.9 47.1 540 F 1 1533 19 12 01 19 21 40 0026+346 05 23 12 36.6 642.0 4.9 47.1 26 1 1 1533 19 21 40 19 30 40 --- 05 32 13 35.3 643.6 5.0 46.7 540 F 1 1568 19 21 41 ---------- ampcal ---------- 19 32 00 0010+405 05 33 34 36.7 651.8 5.3 48.9 34 1 1 1568 19 32 00 19 41 00 --- 05 42 35 35.5 653.2 5.5 48.3 540 F 1 1602 19 32 01 ---------- ampcal ---------- 19 41 40 0010+405 05 43 15 35.4 653.3 5.5 48.2 26 1 1 1602 19 41 40 19 50 40 --- 05 52 17 34.1 654.7 5.6 47.5 540 F 1 1637 19 41 41 ---------- Dummy Scan ---------- 19 54 40 0234+285 05 56 17 46.9 617.0 3.3 43.0 148 1 1 1637 19 54 40 19 55 40 --- 05 57 17 46.7 617.3 3.3 43.1 60 F 1 1641 19 54 41 ---------- Dummy Scan ---------- Next scan frequencies: 4966.49 4966.49 4966.49 4966.49 4982.49 4982.49 4982.49 4982.49 Next BBC frequencies: 526.49 526.49 526.49 526.49 542.49 542.49 542.49 542.49 Next scan bandwidths: 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 19 56 40 0234+285 05 58 18 46.6 617.5 3.3 43.1 44 1 1 1641 19 56 40 19 57 40 --- 05 59 18 46.4 617.7 3.4 43.2 60 F 1 1643 19 57 05 Schedule for CAMBG32M (Code Cm ) Page 7 e-VLBI test preceding rt001 UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. For disks, the footages are really the GBytes TPStart: Tape motion start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) SYNC ---------------------------------------------------------------------------------------- --- Tue 20 Feb 2007 Day 51 --- ---------- Dummy Scan ---------- Next scan frequencies: 4966.49 4966.49 4966.49 4966.49 Next BBC frequencies: 526.49 526.49 526.49 526.49 Next scan bandwidths: 8.00 8.00 8.00 8.00 19 58 40 0234+285 06 00 18 46.3 618.0 3.4 43.2 44 1 1 1643 19 58 40 19 59 40 --- 06 01 18 46.1 618.2 3.4 43.3 60 F 1 1644 19 59 05 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: 512Mbps Matches group cm6cm in /aps3/sched/catalogs/freq.dat Confirmed by Alastair Gunn 210897 Setup group: 13 Station: CAMBG32M Total bit rate: 512 Format: MKIV1:2 Bits per sample: 2 Sample rate: 16.000 Number of channels: 16 Speedup factor: 1.00 Disk used to record data. 1st LO= 4440.00 4440.00 4440.00 4440.00 4440.00 4440.00 4440.00 4440.00 4440.00 4440.00 4440.00 4440.00 4440.00 4440.00 4440.00 4440.00 Net SB= L L U U L L U U L L U U L L U U Pol. = RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 2 1 2 3 4 3 4 5 6 5 6 7 8 7 8 BBC SB= L L U U L L U U L L U U L L U U IF = C A C A C A C A C A C A C A C A The following frequency sets based on this setup were used. Frequency Set: 1 Setup file default. Used pcal sets: 1 LO sum= 4966.49 4966.49 4966.49 4966.49 4982.49 4982.49 4982.49 4982.49 4998.49 4998.49 4998.49 4998.49 5014.49 5014.49 5014.49 5014.49 BBC fr= 526.49 526.49 526.49 526.49 542.49 542.49 542.49 542.49 558.49 558.49 558.49 558.49 574.49 574.49 574.49 574.49 Bandwd= 8.000 8.000 8.000 8.000 8.000 8.000 8.000 8.000 8.000 8.000 8.000 8.000 8.000 8.000 8.000 8.000 The following pulse cal sets were used with this setup: Pulse cal detection set: 1 PCAL = 1MHZ PCALXB1= S1 S3 S5 S7 S9 S11 S13 S15 PCALXB2= S2 S4 S6 S8 S10 S12 S14 S16 PCALFR1= 490 510 490 510 490 510 490 510 PCALFR2= 490 510 490 510 490 510 490 510 Track assignments are: track1= 2, 10, 18, 26, 3, 11, 19, 27, 66, 74, 82, 90, 67, 75, 83, 91 barrel=roll_off Setup file: 256Mbps Matches group cm6cm in /aps3/sched/catalogs/freq.dat Confirmed by Alastair Gunn 210897 Setup group: 7 Station: CAMBG32M Total bit rate: 256 Format: MKIV1:2 Bits per sample: 2 Sample rate: 16.000 Number of channels: 8 Speedup factor: 1.00 Disk used to record data. 1st LO= 4440.00 4440.00 4440.00 4440.00 4440.00 4440.00 4440.00 4440.00 Net SB= L L U U L L U U Pol. = RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 2 1 2 3 4 3 4 BBC SB= L L U U L L U U IF = C A C A C A C A The following frequency sets based on this setup were used. Frequency Set: 7 Setup file default. Used pcal sets: 2 LO sum= 4966.49 4966.49 4966.49 4966.49 4982.49 4982.49 4982.49 4982.49 BBC fr= 526.49 526.49 526.49 526.49 542.49 542.49 542.49 542.49 Bandwd= 8.000 8.000 8.000 8.000 8.000 8.000 8.000 8.000 The following pulse cal sets were used with this setup: Pulse cal detection set: 2 PCAL = 1MHZ PCALXB1= S1 S3 S5 S7 S1 S3 S5 S7 PCALXB2= S2 S4 S6 S8 S2 S4 S6 S8 PCALFR1= 490 510 490 510 6490 6510 6490 6510 PCALFR2= 490 510 490 510 6490 6510 6490 6510 Track assignments are: track1= 2, 10, 18, 26, 3, 11, 19, 27 barrel=roll_off Setup file: 128Mbps Matches group cm6cm in /aps3/sched/catalogs/freq.dat Confirmed by Alastair Gunn 210897 Setup group: 1 Station: CAMBG32M Total bit rate: 128 Format: MKIV1:2 Bits per sample: 2 Sample rate: 16.000 Number of channels: 4 Speedup factor: 1.00 Disk used to record data. 1st LO= 4440.00 4440.00 4440.00 4440.00 Net SB= L L U U Pol. = RCP LCP RCP LCP BBC = 1 2 1 2 BBC SB= L L U U IF = C A C A The following frequency sets based on this setup were used. Frequency Set: 13 Setup file default. Used pcal sets: 3 LO sum= 4966.49 4966.49 4966.49 4966.49 BBC fr= 526.49 526.49 526.49 526.49 Bandwd= 8.000 8.000 8.000 8.000 The following pulse cal sets were used with this setup: Pulse cal detection set: 3 PCAL = 1MHZ PCALXB1= S1 S3 S1 S3 S1 S2 S3 S4 PCALXB2= S2 S4 S2 S4 M1 M2 M3 M4 PCALFR1= 490 510 6490 6510 0 0 0 0 PCALFR2= 490 510 6490 6510 0 0 0 0 Track assignments are: track1= 2, 10, 18, 26 barrel=roll_off SOURCE LIST -- e-VLBI test preceding rt001 Catalog positions marked with *. Precession of date coordinates is based on stop time of first scan. Names used in schedule marked with *. Short names used in VLA and SNAP files marked with +. Observation date used in B1950/J2000 coordinate conversion (PRECDATE): 1979.900 No adjustments are made for rates (DRA, DDEC). Scan hours are for recording scans only. Baseline hours are only counted for scans above horizon at both ends. Source Source position (RA/Dec) Error (B1950) (J2000) (Date) (mas) J0013+4051 00 10 54.297703 * 00 13 31.130200 00 13 51.935707 0.27 * 0010+405 40 34 56.63335 * 40 51 37.14409 40 54 04.30345 0.41 J0013+40 /aps3/sched/catalogs/sources.vlba VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro 1.650 scan hours, 24.000 baseline hours above horizon. J0029+3456 00 26 34.833643 * 00 29 14.242461 00 29 35.693517 0.58 * 0026+346 34 39 57.70740 * 34 56 32.24716 34 58 58.35841 0.59 J0029+34 /aps3/sched/catalogs/sources.vlba VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro 4.050 scan hours, 60.750 baseline hours above horizon. J0237+2848 02 34 55.589592 * 02 37 52.405679 02 38 17.293502 0.23 * 0234+285 28 35 11.40780 * 28 48 08.99005 28 50 09.34579 0.40 J0237+28 /aps3/sched/catalogs/sources.vlba VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro 1.400 scan hours, 21.000 baseline hours above horizon. 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) 0010+405 58.7 0026+346 55.9 0234+285 74.9 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