COVER INFORMATION Station: MEDICINA (Code Mc ) 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 MEDICINA (Code Mc ) 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: 223.49 223.49 223.49 223.49 255.49 255.49 255.49 255.49 287.49 287.49 287.49 287.49 319.49 319.49 319.49 319.49 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 02 03 12 47.4 435.1 -3.9 -63.8 0 0 14 00 00 14 04 00 --- 02 07 13 48.1 435.6 -3.8 -64.0 240 15 14 00 04 14 06 00 DA193 02 09 13 48.5 435.9 -3.8 -64.2 117 15 14 06 00 14 10 00 --- 02 13 14 49.2 436.4 -3.7 -64.4 240 31 14 06 04 14 12 00 DA193 02 15 14 49.5 436.6 -3.7 -64.6 117 31 14 12 00 14 13 00 --- 02 16 14 49.7 436.8 -3.7 -64.6 60 35 14 12 04 14 22 00 J2040+4527 02 25 16 32.3 304.2 5.7 57.3 358 35 14 22 00 14 23 00 =2039+452 02 26 16 32.2 304.3 5.7 57.2 60 39 14 22 04 14 23 40 J2039+4159 02 26 56 29.9 301.2 5.8 55.2 31 39 14 23 40 14 24 40 --- 02 27 56 29.8 301.3 5.8 55.1 60 43 14 23 44 14 25 20 J2040+4527 02 28 36 31.9 304.5 5.8 56.9 31 43 14 25 20 14 26 20 =2039+452 02 29 36 31.7 304.6 5.8 56.8 60 46 14 25 24 14 27 00 J2039+4159 02 30 16 29.4 301.6 5.8 54.9 31 46 14 27 00 14 28 00 --- 02 31 17 29.3 301.7 5.9 54.8 60 50 14 27 04 14 28 40 J2040+4527 02 31 57 31.4 304.9 5.8 56.5 31 50 14 28 40 14 29 40 =2039+452 02 32 57 31.2 305.0 5.9 56.4 60 54 14 28 44 14 30 20 J2039+4159 02 33 37 28.9 302.0 5.9 54.5 31 54 14 30 20 14 31 20 --- 02 34 37 28.8 302.1 5.9 54.4 60 58 14 30 24 14 32 00 J2040+4527 02 35 17 30.9 305.3 5.9 56.1 31 58 14 32 00 14 33 00 =2039+452 02 36 17 30.7 305.4 5.9 56.0 60 62 14 32 04 14 33 40 J2039+4159 02 36 58 28.4 302.4 6.0 54.1 31 62 14 33 40 14 34 40 --- 02 37 58 28.3 302.5 6.0 54.0 60 66 14 33 44 14 35 20 J2040+4527 02 38 38 30.4 305.7 6.0 55.7 31 66 14 35 20 14 36 20 =2039+452 02 39 38 30.2 305.8 6.0 55.6 60 70 14 35 24 14 37 00 J2039+4159 02 40 18 27.9 302.8 6.0 53.8 31 70 14 37 00 14 38 00 --- 02 41 18 27.8 303.0 6.0 53.7 60 74 14 37 04 Schedule for MEDICINA (Code Mc ) 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 41 58 29.9 306.0 6.0 55.3 31 74 14 38 40 14 39 40 =2039+452 02 42 59 29.8 306.2 6.0 55.2 60 77 14 38 44 14 40 20 J2039+4159 02 43 39 27.4 303.2 6.1 53.4 31 77 14 40 20 14 41 20 --- 02 44 39 27.3 303.4 6.1 53.3 60 81 14 40 24 14 42 00 J2040+4527 02 45 19 29.4 306.4 6.1 54.9 31 81 14 42 00 14 43 00 =2039+452 02 46 19 29.3 306.5 6.1 54.8 60 85 14 42 04 14 43 40 J2039+4159 02 46 59 26.9 303.7 6.1 53.0 31 85 14 43 40 14 44 40 --- 02 47 59 26.8 303.8 6.1 52.9 60 89 14 43 44 14 45 20 J2040+4527 02 48 39 29.0 306.8 6.1 54.5 31 89 14 45 20 14 46 20 =2039+452 02 49 40 28.8 306.9 6.1 54.4 60 93 14 45 24 14 47 00 J2039+4159 02 50 20 26.4 304.1 6.2 52.7 31 93 14 47 00 14 48 00 --- 02 51 20 26.3 304.2 6.2 52.6 60 97 14 47 04 14 48 40 J2040+4527 02 52 00 28.5 307.2 6.2 54.1 31 97 14 48 40 14 49 40 =2039+452 02 53 00 28.3 307.3 6.2 54.0 60 101 14 48 44 14 50 20 J2039+4159 02 53 40 25.9 304.5 6.2 52.3 31 101 14 50 20 14 51 20 --- 02 54 40 25.8 304.6 6.3 52.2 60 105 14 50 24 14 52 00 J2040+4527 02 55 21 28.0 307.6 6.2 53.7 31 105 14 52 00 14 53 00 =2039+452 02 56 21 27.9 307.7 6.3 53.6 60 108 14 52 04 14 53 40 J2039+4159 02 57 01 25.4 304.9 6.3 51.9 31 108 14 53 40 14 54 40 --- 02 58 01 25.3 305.1 6.3 51.8 60 112 14 53 44 14 55 20 J2040+4527 02 58 41 27.5 308.0 6.3 53.3 31 112 14 55 20 14 56 20 =2039+452 02 59 41 27.4 308.1 6.3 53.2 60 116 14 55 24 14 57 00 J2039+4159 03 00 21 24.9 305.3 6.3 51.5 31 116 14 57 00 14 58 00 --- 03 01 22 24.8 305.5 6.4 51.4 60 120 14 57 04 14 58 40 J2040+4527 03 02 02 27.1 308.4 6.3 52.9 31 120 14 58 40 14 59 40 =2039+452 03 03 02 26.9 308.5 6.4 52.8 60 124 14 58 44 15 00 20 J2039+4159 03 03 42 24.5 305.8 6.4 51.2 31 124 15 00 20 15 01 20 --- 03 04 42 24.3 305.9 6.4 51.0 60 128 15 00 24 15 02 00 J2040+4527 03 05 22 26.6 308.8 6.4 52.5 31 128 15 02 00 15 03 00 =2039+452 03 06 22 26.5 308.9 6.4 52.3 60 132 15 02 04 Schedule for MEDICINA (Code Mc ) 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 03 07 02 24.0 306.2 6.5 50.8 31 132 15 03 40 15 04 40 --- 03 08 03 23.8 306.3 6.5 50.7 60 135 15 03 44 15 05 20 J2040+4527 03 08 43 26.1 309.2 6.5 52.0 31 135 15 05 20 15 06 20 =2039+452 03 09 43 26.0 309.3 6.5 51.9 60 139 15 05 24 15 07 00 J2039+4159 03 10 23 23.5 306.6 6.5 50.4 31 139 15 07 00 15 08 00 --- 03 11 23 23.4 306.8 6.5 50.3 60 143 15 07 04 15 08 40 J2040+4527 03 12 03 25.7 309.6 6.5 51.6 31 143 15 08 40 15 09 40 =2039+452 03 13 03 25.5 309.7 6.5 51.5 60 147 15 08 44 15 10 20 J2039+4159 03 13 44 23.0 307.1 6.6 50.0 31 147 15 10 20 15 11 20 --- 03 14 44 22.9 307.2 6.6 49.9 60 151 15 10 24 15 12 00 J2040+4527 03 15 24 25.2 310.0 6.6 51.2 31 151 15 12 00 15 13 00 =2039+452 03 16 24 25.1 310.1 6.6 51.1 60 155 15 12 04 15 13 40 J2039+4159 03 17 04 22.5 307.5 6.6 49.6 30 155 15 13 40 15 14 40 --- 03 18 04 22.4 307.6 6.6 49.5 60 159 15 13 44 15 15 20 J2040+4527 03 18 44 24.8 310.4 6.6 50.8 31 159 15 15 20 15 16 20 =2039+452 03 19 45 24.6 310.5 6.6 50.7 60 163 15 15 24 15 25 00 DA193 03 28 26 62.4 446.7 -2.5 -67.9 336 163 15 25 00 15 26 00 --- 03 29 26 62.6 446.9 -2.5 -68.0 60 166 15 25 04 15 28 00 DA193 03 31 26 62.9 447.2 -2.4 -68.0 117 166 15 28 00 15 32 00 --- 03 35 27 63.7 447.8 -2.4 -68.1 240 182 15 28 04 15 34 00 DA193 03 37 27 64.0 448.2 -2.3 -68.1 117 182 15 34 00 15 35 00 --- 03 38 28 64.2 448.3 -2.3 -68.1 60 186 15 34 04 15 35 40 DA193 03 39 08 64.3 448.4 -2.3 -68.1 37 186 15 35 40 15 36 40 --- 03 40 08 64.5 448.6 -2.3 -68.1 60 190 15 35 44 15 37 20 J0605+4030 03 40 48 63.0 445.6 -2.4 -69.2 32 190 15 37 20 15 38 20 =0602+405 03 41 48 63.2 445.8 -2.4 -69.2 60 194 15 37 24 15 39 00 DA193 03 42 28 64.9 449.0 -2.2 -68.1 32 194 15 39 00 15 40 00 --- 03 43 28 65.1 449.2 -2.2 -68.1 60 197 15 39 04 15 40 40 J0605+4030 03 44 09 63.6 446.1 -2.4 -69.3 32 197 15 40 40 15 41 40 =0602+405 03 45 09 63.8 446.3 -2.4 -69.3 60 201 15 40 44 Schedule for MEDICINA (Code Mc ) 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 45 49 65.5 449.6 -2.2 -68.2 32 201 15 42 20 15 43 20 --- 03 46 49 65.7 449.7 -2.2 -68.2 60 205 15 42 24 15 44 00 J0605+4030 03 47 29 64.2 446.6 -2.3 -69.4 32 205 15 44 00 15 45 00 =0602+405 03 48 29 64.4 446.8 -2.3 -69.4 60 209 15 44 04 15 45 40 DA193 03 49 09 66.1 450.1 -2.1 -68.2 32 209 15 45 40 15 46 40 --- 03 50 10 66.3 450.3 -2.1 -68.2 60 213 15 45 44 15 47 20 J0605+4030 03 50 50 64.8 447.2 -2.3 -69.5 32 213 15 47 20 15 48 20 =0602+405 03 51 50 65.0 447.3 -2.3 -69.5 60 217 15 47 24 15 49 00 DA193 03 52 30 66.7 450.7 -2.1 -68.2 32 217 15 49 00 15 50 00 --- 03 53 30 66.9 450.9 -2.1 -68.1 60 221 15 49 04 15 50 40 J0605+4030 03 54 10 65.4 447.7 -2.2 -69.5 32 221 15 50 40 15 51 40 =0602+405 03 55 10 65.6 447.9 -2.2 -69.6 60 225 15 50 44 15 52 20 DA193 03 55 50 67.3 451.3 -2.0 -68.1 32 225 15 52 20 15 53 20 --- 03 56 51 67.5 451.5 -2.0 -68.1 60 228 15 52 24 15 54 00 J0605+4030 03 57 31 66.0 448.2 -2.2 -69.6 32 228 15 54 00 15 55 00 =0602+405 03 58 31 66.2 448.4 -2.1 -69.6 60 232 15 54 04 15 55 40 DA193 03 59 11 67.9 452.0 -2.0 -68.1 31 232 15 55 40 15 56 40 --- 04 00 11 68.1 452.2 -1.9 -68.1 60 236 15 55 44 15 57 20 J0605+4030 04 00 51 66.6 448.8 -2.1 -69.6 31 236 15 57 20 15 58 20 =0602+405 04 01 51 66.8 448.9 -2.1 -69.6 60 240 15 57 24 15 59 00 DA193 04 02 32 68.5 452.6 -1.9 -68.0 31 240 15 59 00 16 00 00 --- 04 03 32 68.7 452.8 -1.9 -68.0 60 244 15 59 04 16 00 40 J0605+4030 04 04 12 67.2 449.3 -2.0 -69.7 31 244 16 00 40 16 01 40 =0602+405 04 05 12 67.4 449.5 -2.0 -69.7 60 248 16 00 44 16 02 20 DA193 04 05 52 69.1 453.3 -1.8 -67.9 31 248 16 02 20 16 03 20 --- 04 06 52 69.2 453.5 -1.8 -67.9 60 252 16 02 24 16 04 00 J0605+4030 04 07 32 67.8 449.9 -2.0 -69.7 31 252 16 04 00 16 05 00 =0602+405 04 08 33 68.0 450.1 -2.0 -69.7 60 255 16 04 04 16 05 40 DA193 04 09 13 69.7 454.0 -1.8 -67.8 31 255 16 05 40 16 06 40 --- 04 10 13 69.8 454.2 -1.8 -67.8 60 259 16 05 44 Schedule for MEDICINA (Code Mc ) 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 04 10 53 68.4 450.5 -1.9 -69.7 31 259 16 07 20 16 08 20 =0602+405 04 11 53 68.5 450.7 -1.9 -69.6 60 263 16 07 24 16 09 00 DA193 04 12 33 70.3 454.7 -1.7 -67.7 31 263 16 09 00 16 10 00 --- 04 13 33 70.4 454.9 -1.7 -67.6 60 267 16 09 04 16 10 40 J0605+4030 04 14 13 69.0 451.1 -1.9 -69.6 31 267 16 10 40 16 11 40 =0602+405 04 15 14 69.1 451.3 -1.9 -69.6 60 271 16 10 44 16 12 20 DA193 04 15 54 70.9 455.4 -1.7 -67.5 31 271 16 12 20 16 13 20 --- 04 16 54 71.0 455.6 -1.7 -67.5 60 275 16 12 24 16 14 00 J0605+4030 04 17 34 69.6 451.7 -1.8 -69.6 31 275 16 14 00 16 15 00 =0602+405 04 18 34 69.7 451.9 -1.8 -69.6 60 279 16 14 04 16 15 40 DA193 04 19 14 71.4 456.2 -1.6 -67.3 31 279 16 15 40 16 16 40 --- 04 20 14 71.6 456.4 -1.6 -67.3 60 283 16 15 44 16 17 20 J0605+4030 04 20 55 70.2 452.4 -1.8 -69.5 31 283 16 17 20 16 18 20 =0602+405 04 21 55 70.3 452.6 -1.7 -69.5 60 286 16 17 24 16 19 00 DA193 04 22 35 72.0 457.0 -1.6 -67.1 30 286 16 19 00 16 20 00 --- 04 23 35 72.2 457.2 -1.5 -67.1 60 290 16 19 04 16 20 40 J0605+4030 04 24 15 70.8 453.1 -1.7 -69.4 30 290 16 20 40 16 21 40 =0602+405 04 25 15 70.9 453.3 -1.7 -69.4 60 294 16 20 44 16 23 40 DA193 04 27 16 72.9 458.1 -1.5 -66.8 110 294 16 23 40 16 24 40 --- 04 28 16 73.0 458.4 -1.5 -66.7 60 298 16 23 44 16 26 00 DA193 04 29 36 73.3 458.7 -1.4 -66.6 77 298 16 26 00 16 30 00 --- 04 33 37 74.0 459.8 -1.4 -66.1 240 314 16 26 04 16 32 00 DA193 04 35 37 74.3 460.4 -1.3 -65.9 117 314 16 32 00 16 40 00 --- 04 43 38 75.7 462.9 -1.2 -64.8 480 344 16 32 04 16 42 00 DA193 04 45 39 76.1 463.6 -1.2 -64.5 117 344 16 42 00 16 50 00 --- 04 53 40 77.5 466.6 -1.0 -62.8 480 375 16 42 04 16 52 00 DA193 04 55 40 77.8 467.4 -1.0 -62.3 117 375 16 52 00 17 00 00 --- 05 03 42 79.2 471.1 -0.9 -60.0 480 406 16 52 04 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess114.K1024 Matching groups in ./SH65.freq.dat: mc13mm values confirmed Maccaferri (CR 30Nov00) Setup group: 22 Station: MEDICINA Total bit rate: 512 Format: MKIV1:4 Bits per sample: 1 Sample rate: 32.000 Number of channels: 16 DBE type: Speedup factor: 1.00 Disk used to record data. 1st LO= 21964.00 21964.00 21964.00 21964.00 21964.00 21964.00 21964.00 21964.00 21964.00 21964.00 21964.00 21964.00 21964.00 21964.00 21964.00 21964.00 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 = 2 1 2 1 4 3 4 3 6 5 6 5 8 7 8 7 BBC SB= L L U U L L U U L L U U L L U U IF = 2N 1N 2N 1N 2N 1N 2N 1N 2N 1N 2N 1N 2N 1N 2N 1N The following frequency sets based on these setups were used. Frequency Set: 4 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= 223.49 223.49 223.49 223.49 255.49 255.49 255.49 255.49 287.49 287.49 287.49 287.49 319.49 319.49 319.49 319.49 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: 4 Track assignments are: track1= 2, 10, 18, 26, 3, 11, 19, 27, 66, 74, 82, 90, 67, 75, 83, 91 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