COVER INFORMATION Station: EFLSBERG (Code Ef ) Experiment: Network Monitoring Experiment Exp. Code: N14K1 Schedule Version: 2.00 Processed by SCHED version: 10.20 Release of about July 12, 2012 PI: Ciriaco Goddi Address: JIVE Postbus 2 7990 AA Dwingeloo The Netherlands Phone: +31-521-596548 EMAIL: goddi@jive.nl Fax: Phone during observation: +31-521-596548 Observing mode: Notes: 1.3 cm NME for session 1/2014 1 Gbps, 2-bit sampling, 16 MHz filters Send the disk pack by express to JIVE COVER LETTER: Dear EVN friends, This is the schedule for the 1.3cm NME on March 11 2014, involving 16 EVN antennas: Eb Jb2 On20 Mc Nt Tr Sv Zc Bd Ur Sh Sh65 Hh Ys Mh Sr, plus the KVN stations KVNYS KVNUS KVNTN. Stations testing their new DBBC backends are also included: MC_DBBC (Md), TR_DBBC (Td), and YS_DBBC (Yd). The NME uses a setup with 1 Gbps and consists of integrations on the VLBI fringe finder DA193 (~1.8Jy at 22 GHz) as well as phase-referencing cycles between continuum calibrators (1st phase-reference cycle: J2040+4527 -- J2039+4159; 2nd phase-reference cycle: DA193 -- J0605+4030). There are three ftp fringe-test scans (1) 14:09:00 UT (scan 2, 2 sec, DA193) (2) 15:31:00 UT (scan 38, 2 sec, DA193) (3) 16:29:00 UT (scan 69, 2 sec, DA193) See you on Skype group chat and Good luck with the session! Ciriaco Skype account: ciriaco.goddi Schedule for EFLSBERG (Code Ef ) Page 2 Network Monitoring Experiment 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 ---------------------------------------------------------------------------------------- --- Tue 11 Mar 2014 Day 70 --- Next scan frequencies: 22187.49 22187.49 22187.49 22187.49 22219.49 22219.49 22219.49 22219.49 22251.49 22251.49 22251.49 22251.49 22283.49 22283.49 22283.49 22283.49 Next BBC frequencies: 687.49 687.49 687.49 687.49 719.49 719.49 719.49 719.49 751.49 751.49 751.49 751.49 783.49 783.49 783.49 783.49 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 14 00 00 DA193 01 44 09 45.7 78.5 -4.2 -54.2 0 0 14 00 00 14 04 00 --- 01 48 09 46.3 79.2 -4.1 -54.4 240 31 14 00 01 14 06 00 DA193 01 50 10 46.6 79.5 -4.1 -54.5 109 31 14 06 00 14 10 00 --- 01 54 10 47.2 80.2 -4.0 -54.6 240 62 14 06 01 14 12 00 DA193 01 56 11 47.5 80.5 -4.0 -54.7 109 62 14 12 00 14 13 00 --- 01 57 11 47.7 80.7 -4.0 -54.8 60 70 14 12 01 14 22 00 J2040+4527 02 06 12 38.2 298.2 5.4 53.1 -12 70 14 22 00 14 23 00 =2039+452 02 07 13 38.1 298.3 5.4 53.0 48 77 14 22 01 14 23 40 J2039+4159 02 07 53 35.6 295.2 5.5 50.7 6 77 14 23 40 14 24 40 --- 02 08 53 35.5 295.4 5.5 50.7 60 85 14 23 41 14 25 20 J2040+4527 02 09 33 37.7 298.6 5.5 52.8 6 85 14 25 20 14 26 20 =2039+452 02 10 33 37.6 298.8 5.5 52.7 60 93 14 25 21 14 27 00 J2039+4159 02 11 13 35.1 295.7 5.5 50.5 6 93 14 27 00 14 28 00 --- 02 12 13 35.0 295.9 5.5 50.4 60 101 14 27 01 14 28 40 J2040+4527 02 12 54 37.3 299.1 5.5 52.4 6 101 14 28 40 14 29 40 =2039+452 02 13 54 37.1 299.2 5.5 52.4 60 108 14 28 41 14 30 20 J2039+4159 02 14 34 34.6 296.2 5.6 50.2 6 108 14 30 20 14 31 20 --- 02 15 34 34.5 296.3 5.6 50.1 60 116 14 30 21 14 32 00 J2040+4527 02 16 14 36.8 299.5 5.6 52.1 6 116 14 32 00 14 33 00 =2039+452 02 17 14 36.7 299.7 5.6 52.0 60 124 14 32 01 14 33 40 J2039+4159 02 17 54 34.2 296.7 5.6 49.9 6 124 14 33 40 14 34 40 --- 02 18 54 34.0 296.8 5.7 49.8 60 132 14 33 41 14 35 20 J2040+4527 02 19 35 36.4 300.0 5.6 51.8 6 132 14 35 20 14 36 20 =2039+452 02 20 35 36.2 300.1 5.7 51.7 60 139 14 35 21 14 37 00 J2039+4159 02 21 15 33.7 297.2 5.7 49.6 7 139 14 37 00 14 38 00 --- 02 22 15 33.5 297.3 5.7 49.5 60 147 14 37 01 Schedule for EFLSBERG (Code Ef ) Page 3 Network Monitoring Experiment 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 ---------------------------------------------------------------------------------------- --- Tue 11 Mar 2014 Day 70 --- 14 38 40 J2040+4527 02 22 55 35.9 300.4 5.7 51.5 6 147 14 38 40 14 39 40 =2039+452 02 23 55 35.8 300.6 5.7 51.4 60 155 14 38 41 14 40 20 J2039+4159 02 24 35 33.2 297.7 5.7 49.3 7 155 14 40 20 14 41 20 --- 02 25 36 33.1 297.8 5.8 49.2 60 163 14 40 21 14 42 00 J2040+4527 02 26 16 35.4 300.9 5.7 51.1 6 163 14 42 00 14 43 00 =2039+452 02 27 16 35.3 301.0 5.8 51.0 60 170 14 42 01 14 43 40 J2039+4159 02 27 56 32.7 298.1 5.8 49.0 7 170 14 43 40 14 44 40 --- 02 28 56 32.6 298.3 5.8 48.9 60 178 14 43 41 14 45 20 J2040+4527 02 29 36 35.0 301.3 5.8 50.8 6 178 14 45 20 14 46 20 =2039+452 02 30 36 34.8 301.5 5.8 50.7 60 186 14 45 21 14 47 00 J2039+4159 02 31 17 32.3 298.6 5.9 48.7 7 186 14 47 00 14 48 00 --- 02 32 17 32.1 298.8 5.9 48.6 60 194 14 47 01 14 48 40 J2040+4527 02 32 57 34.5 301.8 5.9 50.5 7 194 14 48 40 14 49 40 =2039+452 02 33 57 34.4 301.9 5.9 50.4 60 201 14 48 41 14 50 20 J2039+4159 02 34 37 31.8 299.1 5.9 48.4 7 201 14 50 20 14 51 20 --- 02 35 37 31.7 299.2 5.9 48.3 60 209 14 50 21 14 52 00 J2040+4527 02 36 17 34.1 302.2 5.9 50.1 7 209 14 52 00 14 53 00 =2039+452 02 37 18 33.9 302.4 5.9 50.0 60 217 14 52 01 14 53 40 J2039+4159 02 37 58 31.4 299.6 6.0 48.1 7 217 14 53 40 14 54 40 --- 02 38 58 31.2 299.7 6.0 48.0 60 225 14 53 41 14 55 20 J2040+4527 02 39 38 33.6 302.7 6.0 49.8 7 225 14 55 20 14 56 20 =2039+452 02 40 38 33.5 302.8 6.0 49.7 60 232 14 55 21 14 57 00 J2039+4159 02 41 18 30.9 300.1 6.0 47.8 7 232 14 57 00 14 58 00 --- 02 42 18 30.8 300.2 6.0 47.7 60 240 14 57 01 14 58 40 J2040+4527 02 42 58 33.2 303.1 6.0 49.4 7 240 14 58 40 14 59 40 =2039+452 02 43 59 33.0 303.3 6.0 49.3 60 248 14 58 41 15 00 20 J2039+4159 02 44 39 30.4 300.6 6.1 47.5 8 248 15 00 20 15 01 20 --- 02 45 39 30.3 300.7 6.1 47.4 60 255 15 00 21 15 02 00 J2040+4527 02 46 19 32.7 303.6 6.1 49.1 7 255 15 02 00 15 03 00 =2039+452 02 47 19 32.6 303.7 6.1 49.0 60 263 15 02 01 Schedule for EFLSBERG (Code Ef ) Page 4 Network Monitoring Experiment 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 ---------------------------------------------------------------------------------------- --- Tue 11 Mar 2014 Day 70 --- 15 03 40 J2039+4159 02 47 59 30.0 301.0 6.1 47.2 8 263 15 03 40 15 04 40 --- 02 48 59 29.8 301.2 6.2 47.1 60 271 15 03 41 15 05 20 J2040+4527 02 49 40 32.3 304.0 6.1 48.7 7 271 15 05 20 15 06 20 =2039+452 02 50 40 32.2 304.2 6.2 48.6 60 279 15 05 21 15 07 00 J2039+4159 02 51 20 29.5 301.5 6.2 46.9 8 279 15 07 00 15 08 00 --- 02 52 20 29.4 301.7 6.2 46.8 60 286 15 07 01 15 08 40 J2040+4527 02 53 00 31.9 304.5 6.2 48.4 7 286 15 08 40 15 09 40 =2039+452 02 54 00 31.7 304.6 6.2 48.3 60 294 15 08 41 15 10 20 J2039+4159 02 54 40 29.1 302.0 6.3 46.5 8 294 15 10 20 15 11 20 --- 02 55 41 28.9 302.2 6.3 46.4 60 302 15 10 21 15 12 00 J2040+4527 02 56 21 31.4 305.0 6.3 48.0 8 302 15 12 00 15 13 00 =2039+452 02 57 21 31.3 305.1 6.3 47.9 60 310 15 12 01 15 13 40 J2039+4159 02 58 01 28.6 302.5 6.3 46.2 8 310 15 13 40 15 14 40 --- 02 59 01 28.5 302.7 6.3 46.1 60 317 15 13 41 15 15 20 J2040+4527 02 59 41 31.0 305.4 6.3 47.7 8 317 15 15 20 15 16 20 =2039+452 03 00 41 30.9 305.6 6.3 47.6 60 325 15 15 21 15 25 00 DA193 03 09 23 59.1 453.9 -2.8 -55.7 135 325 15 25 00 15 26 00 --- 03 10 23 59.3 454.1 -2.8 -55.6 60 333 15 25 01 15 28 00 DA193 03 12 23 59.6 454.6 -2.7 -55.6 108 333 15 28 00 15 32 00 --- 03 16 24 60.2 455.4 -2.7 -55.5 240 364 15 28 01 15 34 00 DA193 03 18 24 60.6 455.9 -2.6 -55.4 108 364 15 34 00 15 35 00 --- 03 19 24 60.7 456.1 -2.6 -55.4 60 372 15 34 01 15 35 40 DA193 03 20 05 60.8 456.2 -2.6 -55.4 29 372 15 35 40 15 36 40 --- 03 21 05 61.0 456.5 -2.6 -55.3 60 379 15 35 41 15 37 20 J0605+4030 03 21 45 59.8 453.2 -2.8 -56.6 5 379 15 37 20 15 38 20 =0602+405 03 22 45 60.0 453.4 -2.7 -56.6 60 387 15 37 21 15 39 00 DA193 03 23 25 61.4 457.0 -2.6 -55.2 4 387 15 39 00 15 40 00 --- 03 24 25 61.5 457.2 -2.5 -55.2 60 395 15 39 01 15 40 40 J0605+4030 03 25 05 60.4 453.9 -2.7 -56.5 5 395 15 40 40 15 41 40 =0602+405 03 26 06 60.5 454.1 -2.7 -56.5 60 403 15 40 41 Schedule for EFLSBERG (Code Ef ) Page 5 Network Monitoring Experiment 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 ---------------------------------------------------------------------------------------- --- Tue 11 Mar 2014 Day 70 --- 15 42 20 DA193 03 26 46 61.9 457.8 -2.5 -55.1 4 403 15 42 20 15 43 20 --- 03 27 46 62.0 458.0 -2.5 -55.0 60 410 15 42 21 15 44 00 J0605+4030 03 28 26 60.9 454.6 -2.6 -56.4 5 410 15 44 00 15 45 00 =0602+405 03 29 26 61.1 454.9 -2.6 -56.4 60 418 15 44 01 15 45 40 DA193 03 30 06 62.4 458.6 -2.4 -54.9 4 418 15 45 40 15 46 40 --- 03 31 06 62.6 458.8 -2.4 -54.9 60 426 15 45 41 15 47 20 J0605+4030 03 31 46 61.4 455.4 -2.6 -56.3 5 426 15 47 20 15 48 20 =0602+405 03 32 47 61.6 455.6 -2.6 -56.3 60 434 15 47 21 15 49 00 DA193 03 33 27 62.9 459.4 -2.4 -54.8 4 434 15 49 00 15 50 00 --- 03 34 27 63.1 459.6 -2.4 -54.7 60 441 15 49 01 15 50 40 J0605+4030 03 35 07 62.0 456.1 -2.5 -56.2 4 441 15 50 40 15 51 40 =0602+405 03 36 07 62.1 456.3 -2.5 -56.2 60 449 15 50 41 15 52 20 DA193 03 36 47 63.5 460.2 -2.3 -54.6 3 449 15 52 20 15 53 20 --- 03 37 47 63.6 460.4 -2.3 -54.5 60 457 15 52 21 15 54 00 J0605+4030 03 38 28 62.5 456.9 -2.5 -56.1 4 457 15 54 00 15 55 00 =0602+405 03 39 28 62.6 457.1 -2.5 -56.1 60 464 15 54 01 15 55 40 DA193 03 40 08 64.0 461.0 -2.3 -54.3 3 464 15 55 40 15 56 40 --- 03 41 08 64.1 461.3 -2.3 -54.3 60 472 15 55 41 15 57 20 J0605+4030 03 41 48 63.0 457.6 -2.4 -56.0 4 472 15 57 20 15 58 20 =0602+405 03 42 48 63.2 457.9 -2.4 -55.9 60 480 15 57 21 15 59 00 DA193 03 43 28 64.5 461.9 -2.2 -54.1 3 480 15 59 00 16 00 00 --- 03 44 29 64.7 462.2 -2.2 -54.0 60 488 15 59 01 16 00 40 J0605+4030 03 45 09 63.5 458.4 -2.4 -55.8 4 488 16 00 40 16 01 40 =0602+405 03 46 09 63.7 458.7 -2.3 -55.7 60 495 16 00 41 16 02 20 DA193 03 46 49 65.0 462.8 -2.2 -53.8 3 495 16 02 20 16 03 20 --- 03 47 49 65.2 463.0 -2.1 -53.7 60 503 16 02 21 16 04 00 J0605+4030 03 48 29 64.1 459.2 -2.3 -55.6 3 503 16 04 00 16 05 00 =0602+405 03 49 29 64.2 459.5 -2.3 -55.5 60 511 16 04 01 16 05 40 DA193 03 50 09 65.5 463.7 -2.1 -53.5 2 511 16 05 40 16 06 40 --- 03 51 10 65.7 464.0 -2.1 -53.4 60 519 16 05 41 Schedule for EFLSBERG (Code Ef ) Page 6 Network Monitoring Experiment 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 ---------------------------------------------------------------------------------------- --- Tue 11 Mar 2014 Day 70 --- 16 07 20 J0605+4030 03 51 50 64.6 460.1 -2.3 -55.4 3 519 16 07 20 16 08 20 =0602+405 03 52 50 64.7 460.3 -2.2 -55.3 60 526 16 07 21 16 09 00 DA193 03 53 30 66.0 464.6 -2.1 -53.2 2 526 16 09 00 16 10 00 --- 03 54 30 66.2 464.9 -2.0 -53.1 60 534 16 09 01 16 10 40 J0605+4030 03 55 10 65.1 460.9 -2.2 -55.2 3 534 16 10 40 16 11 40 =0602+405 03 56 10 65.3 461.2 -2.2 -55.1 60 542 16 10 41 16 12 20 DA193 03 56 51 66.6 465.6 -2.0 -52.9 2 542 16 12 20 16 13 20 --- 03 57 51 66.7 465.9 -2.0 -52.8 60 550 16 12 21 16 14 00 J0605+4030 03 58 31 65.6 461.8 -2.1 -54.9 2 550 16 14 00 16 15 00 =0602+405 03 59 31 65.8 462.1 -2.1 -54.8 60 557 16 14 01 16 15 40 DA193 04 00 11 67.1 466.6 -1.9 -52.5 1 557 16 15 40 16 16 40 --- 04 01 11 67.2 466.9 -1.9 -52.4 60 565 16 15 41 16 17 20 J0605+4030 04 01 51 66.1 462.7 -2.1 -54.6 2 565 16 17 20 16 18 20 =0602+405 04 02 52 66.3 463.0 -2.1 -54.6 60 573 16 17 21 16 19 00 DA193 04 03 32 67.6 467.6 -1.9 -52.1 1 573 16 19 00 16 20 00 --- 04 04 32 67.7 467.9 -1.9 -52.0 60 581 16 19 01 16 20 40 J0605+4030 04 05 12 66.7 463.6 -2.0 -54.3 2 581 16 20 40 16 21 40 =0602+405 04 06 12 66.8 463.9 -2.0 -54.2 60 588 16 20 41 16 23 40 DA193 04 08 12 68.3 469.1 -1.8 -51.5 80 588 16 23 40 16 24 40 --- 04 09 13 68.4 469.4 -1.8 -51.3 60 596 16 23 41 16 26 00 DA193 04 10 33 68.6 469.8 -1.8 -51.1 68 596 16 26 00 16 30 00 --- 04 14 33 69.2 471.2 -1.7 -50.5 240 627 16 26 01 16 32 00 DA193 04 16 34 69.5 471.9 -1.7 -50.2 107 627 16 32 00 16 40 00 --- 04 24 35 70.7 474.8 -1.5 -48.7 480 689 16 32 01 16 42 00 DA193 04 26 35 71.0 475.6 -1.5 -48.3 107 689 16 42 00 16 50 00 --- 04 34 37 72.1 478.9 -1.4 -46.4 480 751 16 42 01 16 52 00 DA193 04 36 37 72.4 119.8 -1.3 W -45.9 -757 751 16 52 00 17 00 00 --- 04 44 38 73.5 123.5 -1.2 W -43.6 0 813 16 52 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess114.K1024 --- 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: 9 Station: EFLSBERG Total bit rate: 1024 Format: MARK5B Bits per sample: 2 Sample rate: 32.000 Number of channels: 16 DBE type: 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 21500.00 21500.00 21500.00 21500.00 21500.00 21500.00 21500.00 21500.00 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 5 1 5 2 6 2 6 3 7 3 7 4 8 4 8 BBC SB= L L U U L L U U L L U U L L U U IF = A1 B3 A1 B3 A1 B3 A1 B3 A1 B3 A1 B3 A1 B3 A1 B3 The following frequency sets based on these setups were used. Frequency Set: 1 Setup file default. LO sum= 22187.49 22187.49 22187.49 22187.49 22219.49 22219.49 22219.49 22219.49 22251.49 22251.49 22251.49 22251.49 22283.49 22283.49 22283.49 22283.49 BBC fr= 687.49 687.49 687.49 687.49 719.49 719.49 719.49 719.49 751.49 751.49 751.49 751.49 783.49 783.49 783.49 783.49 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: 1 Track assignments are: track1= 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32 barrel=roll_off SOURCES USED IN RECORDING SCANS -- Network Monitoring Experiment 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) * J2039+4159 20 37 18.148706 * 20 39 05.710000 20 39 35.612228 0.00 41 49 02.37998 * 41 59 40.40000 42 02 36.74521 0.00 From catalog imbedded in main SCHED input file. 0.267 scan and 21.900 baseline hours in setup: sess114.K1024 Frequency sets (dups not shown): 1 2 3 4 5 6 7 14 15 16 21 22 J0555+3948 05 52 01.407174 * 05 55 30.805616 05 56 31.341888 0.13 0552+398 39 48 21.94578 * 39 48 49.16493 39 48 52.48027 0.10 * DA193 /aps3/sched10.2/catalogs/sources.vlba J0555+39 rfc_2012b Petrov, 2012, unpublished 376994 observations 0.967 scan and 206.150 baseline hours in setup: sess114.K1024 Frequency sets (dups not shown): 1 2 3 4 5 6 7 10 11 13 14 15 16 17 21 22 * J0605+4030 06 02 20.058852 * 06 05 50.855372 06 06 51.839612 0.15 0602+405 40 30 26.00787 * 40 30 08.10354 40 29 58.54527 0.12 /aps3/sched10.2/catalogs/sources.vlba rfc_2012b Petrov, 2012, unpublished 326 observations 0.233 scan and 49.000 baseline hours in setup: sess114.K1024 Frequency sets (dups not shown): 1 2 3 4 5 6 7 10 11 13 14 15 16 17 21 22 * J2040+4527 20 39 06.383159 * 20 40 48.333100 20 41 16.571449 0.46 2039+452 45 16 33.23001 * 45 27 17.14599 45 30 14.98033 0.54 /aps3/sched10.2/catalogs/sources.vlba rfc_2012b Petrov, 2012, unpublished 77 observations 0.283 scan and 25.524 baseline hours in setup: sess114.K1024 Frequency sets (dups not shown): 1 2 3 4 5 6 7 14 15 16 21 22 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) J2039+4159 59.3 DA193 98.0 J0605+4030 99.9 J2040+4527 61.3 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