COVER INFORMATION Station: ONSALA85 (Code O8 ) Experiment: Network Monitoring Experiment Exp. Code: N15M2 Schedule Version: 2.00 Processed by SCHED version: 11.40 Release 11.4. March 14, 2015 PI: Gabriele Surcis Address: JIVE Postbus 2 7990 AA Dwingeloo The Netherlands Phone: +31-521-596508 EMAIL: surcis@jive.nl Fax: Phone during observation: +31-521-596508 Observing mode: Notes: 5cm NME and 3 ftp fringe test for session 3/2015 (128 Mbps, L+R, 2-bit sampling, 2 MHz filters) Please send the disk pack by express to JIVE COVER LETTER: This is the schedule for the 5cm NME and ftp fringe-test on 21 October 2015 involving 10 antennas: Eb Wb1 Jb2 Mc On8 Nt Tr Ys Sr Ir. The NME uses a standard setup with 128 Mbps. The schedule consists of: - long integrations on strong calibrators like DA193, J0927+3902, and 3C345 for ftp-fringe tests; - linear polarization check using the polarized calibrators J0927+3902 and 3C286; - D-terms check using the calibrators DA193 and 3C345; - and phase-referencing parts with a continuum source (0548+378 and J1640+3946) as target. Three ftp-fringe tests are scheduled throughout the experiment: 09:09:58 (scan 2, 2 sec, DA193) 10:11:58 (scan 35, 2 sec, J0927+3902) 11:53:13 (scan 72, 2 sec, 3C345) Please make sure that the autoftp is set up correctly. Thanks! Good luck with the session! Gabriele Schedule for ONSALA85 (Code O8 ) 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 ---------------------------------------------------------------------------------------- --- Wed 21 Oct 2015 Day 294 --- Next scan frequencies: 6661.49 6661.49 6661.49 6661.49 6665.49 6665.49 6665.49 6665.49 6669.49 6669.49 6669.49 6669.49 6673.49 6673.49 6673.49 6673.49 Next BBC frequencies: 411.49 411.49 411.49 411.49 415.49 415.49 415.49 415.49 419.49 419.49 419.49 419.49 423.49 423.49 423.49 423.49 Next scan bandwidths: 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 09 00 00 DA193 11 45 39 34.0 292.3 5.8 0.0 0 0 09 00 00 09 05 00 --- 11 50 40 33.4 293.1 5.9 0.0 300 5 09 00 01 09 06 00 DA193 11 51 40 33.3 293.3 5.9 0.0 54 5 09 06 00 09 11 00 --- 11 56 41 32.6 294.2 6.0 0.0 300 10 09 06 01 09 12 00 DA193 11 57 41 32.5 294.4 6.0 0.0 54 10 09 12 00 09 17 00 --- 12 02 42 31.9 295.2 6.1 0.0 300 14 09 12 01 09 17 30 DA193 12 03 12 31.8 295.3 6.1 0.0 24 14 09 17 30 09 18 30 --- 12 04 12 31.7 295.5 6.1 0.0 60 15 09 17 31 09 19 00 0548+378 12 04 42 29.8 294.8 6.2 0.0 13 15 09 19 00 09 20 00 --- 12 05 42 29.7 295.0 6.2 0.0 60 16 09 19 01 09 20 30 DA193 12 06 12 31.5 295.9 6.2 0.0 13 16 09 20 30 09 21 30 --- 12 07 12 31.3 296.0 6.2 0.0 60 17 09 20 31 09 22 00 0548+378 12 07 42 29.4 295.3 6.2 0.0 13 17 09 22 00 09 23 00 --- 12 08 43 29.3 295.5 6.3 0.0 60 18 09 22 01 09 23 30 DA193 12 09 13 31.1 296.4 6.2 0.0 13 18 09 23 30 09 24 30 --- 12 10 13 31.0 296.6 6.2 0.0 60 19 09 23 31 09 25 00 0548+378 12 10 43 29.0 295.9 6.3 0.0 13 19 09 25 00 09 26 00 --- 12 11 43 28.9 296.0 6.3 0.0 60 20 09 25 01 09 26 30 DA193 12 12 13 30.7 296.9 6.3 0.0 13 20 09 26 30 09 27 30 --- 12 13 13 30.6 297.1 6.3 0.0 60 21 09 26 31 09 28 00 0548+378 12 13 43 28.7 296.4 6.3 0.0 13 21 09 28 00 09 29 00 --- 12 14 44 28.6 296.6 6.4 0.0 60 22 09 28 01 09 29 30 DA193 12 15 14 30.4 297.4 6.3 0.0 13 22 09 29 30 09 30 30 --- 12 16 14 30.3 297.6 6.3 0.0 60 23 09 29 31 09 31 00 0548+378 12 16 44 28.3 296.9 6.4 0.0 13 23 09 31 00 09 32 00 --- 12 17 44 28.2 297.1 6.4 0.0 60 24 09 31 01 Schedule for ONSALA85 (Code O8 ) 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 ---------------------------------------------------------------------------------------- --- Wed 21 Oct 2015 Day 294 --- 09 32 30 DA193 12 18 14 30.0 298.0 6.4 0.0 13 24 09 32 30 09 33 30 --- 12 19 14 29.9 298.1 6.4 0.0 60 25 09 32 31 09 34 00 0548+378 12 19 44 28.0 297.5 6.4 0.0 13 25 09 34 00 09 35 00 --- 12 20 45 27.8 297.6 6.5 0.0 60 26 09 34 01 09 35 30 DA193 12 21 15 29.7 298.5 6.4 0.0 13 26 09 35 30 09 36 30 --- 12 22 15 29.5 298.7 6.4 0.0 60 27 09 35 31 09 37 00 0548+378 12 22 45 27.6 298.0 6.5 0.0 13 27 09 37 00 09 38 00 --- 12 23 45 27.5 298.2 6.5 0.0 60 28 09 37 01 09 38 30 DA193 12 24 15 29.3 299.0 6.5 0.0 13 28 09 38 30 09 39 30 --- 12 25 15 29.2 299.2 6.5 0.0 60 29 09 38 31 09 40 00 0548+378 12 25 45 27.2 298.5 6.5 0.0 13 29 09 40 00 09 41 00 --- 12 26 46 27.1 298.7 6.6 0.0 60 30 09 40 01 09 41 30 DA193 12 27 16 29.0 299.5 6.5 0.0 13 30 09 41 30 09 42 30 --- 12 28 16 28.8 299.7 6.5 0.0 60 31 09 41 31 09 43 00 0548+378 12 28 46 26.9 299.1 6.6 0.0 13 31 09 43 00 09 44 00 --- 12 29 46 26.8 299.2 6.6 0.0 60 32 09 43 01 09 44 30 DA193 12 30 16 28.6 300.1 6.6 0.0 13 32 09 44 30 09 45 30 --- 12 31 16 28.5 300.2 6.6 0.0 60 33 09 44 31 09 46 00 0548+378 12 31 46 26.5 299.6 6.6 0.0 13 33 09 46 00 09 47 00 --- 12 32 47 26.4 299.8 6.7 0.0 60 34 09 46 01 09 47 30 DA193 12 33 17 28.3 300.6 6.6 0.0 13 34 09 47 30 09 48 30 --- 12 34 17 28.1 300.7 6.6 0.0 60 35 09 47 31 09 49 00 0548+378 12 34 47 26.2 300.1 6.7 0.0 13 35 09 49 00 09 50 00 --- 12 35 47 26.1 300.3 6.7 0.0 60 36 09 49 01 09 50 30 DA193 12 36 17 27.9 301.1 6.7 0.0 13 36 09 50 30 09 51 30 --- 12 37 17 27.8 301.3 6.7 0.0 60 37 09 50 31 09 52 00 0548+378 12 37 47 25.8 300.7 6.7 0.0 13 37 09 52 00 09 53 00 --- 12 38 48 25.7 300.8 6.8 0.0 60 37 09 52 01 09 53 30 DA193 12 39 18 27.6 301.6 6.7 0.0 13 37 09 53 30 09 54 30 --- 12 40 18 27.4 301.8 6.7 0.0 60 38 09 53 31 Schedule for ONSALA85 (Code O8 ) 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 ---------------------------------------------------------------------------------------- --- Wed 21 Oct 2015 Day 294 --- 09 55 00 0548+378 12 40 48 25.5 301.2 6.8 0.0 13 38 09 55 00 09 56 00 --- 12 41 48 25.4 301.4 6.8 0.0 60 39 09 55 01 09 56 30 DA193 12 42 18 27.2 302.1 6.8 0.0 13 39 09 56 30 09 57 30 --- 12 43 18 27.1 302.3 6.8 0.0 60 40 09 56 31 09 58 00 0548+378 12 43 48 25.1 301.7 6.8 0.0 13 40 09 58 00 09 59 00 --- 12 44 49 25.0 301.9 6.9 0.0 60 41 09 58 01 09 59 30 DA193 12 45 19 26.9 302.7 6.8 0.0 13 41 09 59 30 10 00 30 --- 12 46 19 26.8 302.8 6.8 0.0 60 42 09 59 31 10 01 00 0548+378 12 46 49 24.8 302.3 6.9 0.0 13 42 10 01 00 10 02 00 --- 12 47 49 24.7 302.4 6.9 0.0 60 43 10 01 01 10 05 00 J0927+3902 12 50 50 52.7 262.8 3.4 0.0 -9 43 10 05 00 10 07 00 =4C39.25 12 52 50 52.4 263.3 3.4 0.0 111 45 10 05 01 10 08 00 J0927+3902 12 53 50 52.3 263.5 3.4 0.0 54 45 10 08 00 10 13 00 =4C39.25 12 58 51 51.6 264.6 3.5 0.0 300 50 10 08 01 10 15 00 J0927+3902 13 00 51 51.3 265.1 3.5 0.0 114 50 10 15 00 10 25 00 =4C39.25 13 10 53 50.0 267.3 3.7 0.0 600 60 10 15 01 10 26 00 J0927+3902 13 11 53 49.8 267.5 3.7 0.0 54 60 10 26 00 10 31 00 =4C39.25 13 16 54 49.2 268.6 3.8 0.0 300 64 10 26 01 10 37 40 3C286 13 23 35 63.0 176.1 -0.1 0.0 186 64 10 37 40 10 47 40 --- 13 33 37 63.0 180.8 0.0 0.0 600 74 10 37 41 10 48 40 3C286 13 34 37 63.0 181.3 0.0 0.0 54 74 10 48 40 10 56 40 --- 13 42 38 63.0 185.1 0.2 0.0 480 82 10 48 41 10 59 45 3C345 13 45 44 56.6 102.3 -3.0 0.0 15 82 10 59 45 11 02 45 --- 13 48 44 57.0 103.1 -2.9 0.0 180 85 10 59 46 11 03 15 3C345 13 49 14 57.0 103.2 -2.9 0.0 24 85 11 03 15 11 04 15 --- 13 50 14 57.2 103.5 -2.9 0.0 60 86 11 03 16 11 04 45 J1640+3946 13 50 44 57.5 104.3 -2.8 0.0 19 86 11 04 45 11 05 45 =NRAO512 13 51 44 57.7 104.5 -2.8 0.0 60 87 11 04 46 11 06 15 3C345 13 52 15 57.4 104.0 -2.9 0.0 19 87 11 06 15 11 07 15 --- 13 53 15 57.6 104.2 -2.8 0.0 60 87 11 06 16 Schedule for ONSALA85 (Code O8 ) 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 ---------------------------------------------------------------------------------------- --- Wed 21 Oct 2015 Day 294 --- 11 07 45 J1640+3946 13 53 45 57.9 105.1 -2.8 0.0 19 87 11 07 45 11 08 45 =NRAO512 13 54 45 58.1 105.3 -2.8 0.0 60 88 11 07 46 11 09 15 3C345 13 55 15 57.8 104.8 -2.8 0.0 19 88 11 09 15 11 10 15 --- 13 56 15 58.0 105.0 -2.8 0.0 60 89 11 09 16 11 10 45 J1640+3946 13 56 45 58.3 105.9 -2.7 0.0 19 89 11 10 45 11 11 45 =NRAO512 13 57 45 58.5 106.2 -2.7 0.0 60 90 11 10 46 11 12 15 3C345 13 58 16 58.2 105.6 -2.8 0.0 19 90 11 12 15 11 13 15 --- 13 59 16 58.4 105.8 -2.7 0.0 60 91 11 12 16 11 13 45 J1640+3946 13 59 46 58.7 106.7 -2.7 0.0 19 91 11 13 45 11 14 45 =NRAO512 14 00 46 58.8 107.0 -2.7 0.0 60 92 11 13 46 11 15 15 3C345 14 01 16 58.6 106.4 -2.7 0.0 19 92 11 15 15 11 16 15 --- 14 02 16 58.7 106.7 -2.7 0.0 60 93 11 15 16 11 16 45 J1640+3946 14 02 46 59.1 107.5 -2.6 0.0 19 93 11 16 45 11 17 45 =NRAO512 14 03 46 59.2 107.8 -2.6 0.0 60 94 11 16 46 11 18 15 3C345 14 04 17 59.0 107.2 -2.7 0.0 19 94 11 18 15 11 19 15 --- 14 05 17 59.1 107.5 -2.6 0.0 60 95 11 18 16 11 19 45 J1640+3946 14 05 47 59.5 108.4 -2.6 0.0 19 95 11 19 45 11 20 45 =NRAO512 14 06 47 59.6 108.7 -2.6 0.0 60 96 11 19 46 11 21 15 3C345 14 07 17 59.4 108.1 -2.6 0.0 19 96 11 21 15 11 22 15 --- 14 08 17 59.5 108.3 -2.6 0.0 60 97 11 21 16 11 22 45 J1640+3946 14 08 47 59.9 109.2 -2.5 0.0 19 97 11 22 45 11 23 45 =NRAO512 14 09 47 60.0 109.5 -2.5 0.0 60 98 11 22 46 11 24 15 3C345 14 10 18 59.8 108.9 -2.6 0.0 19 98 11 24 15 11 25 15 --- 14 11 18 59.9 109.2 -2.5 0.0 60 99 11 24 16 11 25 45 J1640+3946 14 11 48 60.3 110.1 -2.5 0.0 19 99 11 25 45 11 26 45 =NRAO512 14 12 48 60.4 110.4 -2.5 0.0 60 100 11 25 46 11 27 15 3C345 14 13 18 60.2 109.8 -2.5 0.0 19 100 11 27 15 11 28 15 --- 14 14 18 60.3 110.1 -2.5 0.0 60 101 11 27 16 11 28 45 J1640+3946 14 14 48 60.6 111.0 -2.4 0.0 19 101 11 28 45 11 29 45 =NRAO512 14 15 48 60.8 111.3 -2.4 0.0 60 102 11 28 46 Schedule for ONSALA85 (Code O8 ) 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 ---------------------------------------------------------------------------------------- --- Wed 21 Oct 2015 Day 294 --- 11 30 15 3C345 14 16 19 60.5 110.7 -2.5 0.0 19 102 11 30 15 11 31 15 --- 14 17 19 60.7 111.0 -2.4 0.0 60 103 11 30 16 11 31 45 J1640+3946 14 17 49 61.0 111.9 -2.4 0.0 19 103 11 31 45 11 32 45 =NRAO512 14 18 49 61.1 112.2 -2.4 0.0 60 104 11 31 46 11 33 15 3C345 14 19 19 60.9 111.5 -2.4 0.0 19 104 11 33 15 11 34 15 --- 14 20 19 61.0 111.9 -2.4 0.0 60 105 11 33 16 11 34 45 J1640+3946 14 20 49 61.4 112.8 -2.3 0.0 19 105 11 34 45 11 35 45 =NRAO512 14 21 49 61.5 113.1 -2.3 0.0 60 106 11 34 46 11 36 15 3C345 14 22 19 61.3 112.5 -2.4 0.0 19 106 11 36 15 11 37 15 --- 14 23 20 61.4 112.8 -2.3 0.0 60 107 11 36 16 11 37 45 J1640+3946 14 23 50 61.8 113.7 -2.3 0.0 19 107 11 37 45 11 38 45 =NRAO512 14 24 50 61.9 114.0 -2.3 0.0 60 108 11 37 46 11 39 15 3C345 14 25 20 61.7 113.4 -2.3 0.0 19 108 11 39 15 11 40 15 --- 14 26 20 61.8 113.7 -2.3 0.0 60 109 11 39 16 11 40 45 J1640+3946 14 26 50 62.1 114.7 -2.2 0.0 19 109 11 40 45 11 41 45 =NRAO512 14 27 50 62.3 115.0 -2.2 0.0 60 110 11 40 46 11 42 15 3C345 14 28 20 62.0 114.3 -2.3 0.0 19 110 11 42 15 11 43 15 --- 14 29 21 62.2 114.6 -2.2 0.0 60 111 11 42 16 11 43 45 J1640+3946 14 29 51 62.5 115.6 -2.2 0.0 19 111 11 43 45 11 44 45 =NRAO512 14 30 51 62.6 116.0 -2.2 0.0 60 112 11 43 46 11 45 15 3C345 14 31 21 62.4 115.3 -2.2 0.0 19 112 11 45 15 11 46 15 --- 14 32 21 62.5 115.6 -2.2 0.0 60 112 11 45 16 11 46 45 J1640+3946 14 32 51 62.9 116.6 -2.1 0.0 19 112 11 46 45 11 47 45 =NRAO512 14 33 51 63.0 116.9 -2.1 0.0 60 113 11 46 46 11 48 15 3C345 14 34 21 62.8 116.3 -2.2 0.0 19 113 11 48 15 11 49 15 --- 14 35 22 62.9 116.6 -2.1 0.0 60 114 11 48 16 11 50 15 3C345 14 36 22 63.0 116.9 -2.1 0.0 54 114 11 50 15 11 55 15 --- 14 41 23 63.6 118.6 -2.0 0.0 300 119 11 50 16 11 57 15 3C345 14 43 23 63.8 119.3 -2.0 0.0 114 119 11 57 15 12 00 00 --- 14 46 08 64.2 120.2 -2.0 0.0 165 122 11 57 16 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess315.M128 --- 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: ONSALA85 Total bit rate: 128 Format: MARK5B Bits per sample: 2 Sample rate: 4.000 Number of channels: 16 DBE type: DBBC_DDC Speedup factor: 1.00 Disk used to record data. 1st LO= 6250.00 6250.00 6250.00 6250.00 6250.00 6250.00 6250.00 6250.00 6250.00 6250.00 6250.00 6250.00 6250.00 6250.00 6250.00 6250.00 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 = A1 C1 A1 C1 A1 C1 A1 C1 A1 C1 A1 C1 A1 C1 A1 C1 The following frequency sets based on these setups were used. Frequency Set: 4 Setup file default. Used with PCAL = off LO sum= 6661.49 6661.49 6661.49 6661.49 6665.49 6665.49 6665.49 6665.49 6669.49 6669.49 6669.49 6669.49 6673.49 6673.49 6673.49 6673.49 BBC fr= 411.49 411.49 411.49 411.49 415.49 415.49 415.49 415.49 419.49 419.49 419.49 419.49 423.49 423.49 423.49 423.49 Bandwd= 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 Matching frequency sets: 4 Track assignments are: track1= 18, 26, 2, 10, 20, 28, 4, 12, 22, 30, 6, 14, 24, 32, 8, 16 barrel=roll_off POSITIONS OF SOURCES USED IN RECORDING SCANS Source Source position (RA/Dec) Error (B1950) (J2000) (Date) (mas) * 0548+378 05 48 52.231755 * 05 52 17.936921 05 53 23.735759 0.03 J0552+3754 37 53 44.15055 * 37 54 25.28243 37 54 21.82361 0.03 ../sources.gsfc.2015feb GSFC 2015a astro solution, unpublished 994 observations. 0552+398 05 52 01.407169 * 05 55 30.805611 05 56 37.764139 0.00 J0555+3948 39 48 21.94581 * 39 48 49.16496 39 48 40.59273 0.00 * DA193 ../sources.gsfc.2015feb J0555+39 GSFC 2015a astro solution, unpublished 394383 observations. 4C39.25 09 23 55.319215 * 09 27 03.013936 09 28 01.074849 0.30 * J0927+3902 39 15 23.56645 * 39 02 20.85186 38 58 00.85419 0.16 0923+392 ../sources.gsfc.2015feb J0927+39 GSFC 2015a astro solution, unpublished 245753 observations. * 3C286 13 28 49.657758 * 13 31 08.288051 13 31 50.173275 0.18 J1331+3030 30 45 58.64059 * 30 30 32.95924 30 25 50.07163 0.17 1328+307 ../sources.gsfc.2015feb J1331+30 GSFC 2015a astro solution, unpublished 225 observations. NRAO512 16 38 48.169688 * 16 40 29.632773 16 41 00.181725 0.00 * J1640+3946 39 52 30.08667 * 39 46 46.02848 39 45 20.74013 0.00 1638+398 ../sources.gsfc.2015feb J1640+39 GSFC 2015a astro solution, unpublished 110323 observations. * 3C345 16 41 17.606228 * 16 42 58.809966 16 43 29.292983 0.76 J1642+3948 39 54 10.81496 * 39 48 36.99402 39 47 15.07571 0.52 1641+399 ../sources.gsfc.2015feb J1642+39 GSFC 2015a astro solution, unpublished 53430 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 0548+378 sess315.M128 1 2 3 4 5 6 7 8 0.250 9.450 DA193 sess315.M128 1 2 3 4 5 6 7 8 0.500 20.850 J0927+3902 sess315.M128 1 2 3 4 5 6 7 8 0.367 15.915 3C286 sess315.M128 1 2 3 4 5 6 7 8 0.300 13.500 J1640+3946 sess315.M128 1 2 3 4 5 6 7 8 0.250 11.250 3C345 sess315.M128 1 2 3 4 5 6 7 8 0.446 19.737 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) 0548+378 118.1 DA193 117.1 J0927+3902 77.2 3C286 41.2 J1640+3946 65.1 3C345 65.5 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