COVER INFORMATION Station: KVNUS (Code Ku ) Experiment: EB072 Exp. Code: EB072 Schedule Version: 2.00 Processed by SCHED version: 11.50 Development version 11.5. Started Apr. 2 PI: Ross Burns Address: NAOJ Mitaka Japan 180-0022 Phone: +81-70-2614-2570 EMAIL: ross.burns@nao.ac.jp Fax: Phone during observation: +81-70-2614-2570 Observing mode: Notes: Please DO NOT use the phase cal signal. COVER LETTER: Monitoring observations of water masers in S255. This source recently (around 2015) underwent an accretion burst followed by new jet formation. The observations target maser emission that is expected to appear following the launching of a jet. Schedule for KVNUS (Code Ku ) Page 2 EB072 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 ---------------------------------------------------------------------------------------- --- Mon 11 Mar 2019 Day 70 --- ---------- FF1 ---------- Next scan frequencies: 22207.60 22207.60 22207.60 22207.60 22239.60 22239.60 22239.60 22239.60 22271.60 22271.60 22271.60 22271.60 22303.60 22303.60 22303.60 22303.60 Next BBC frequencies: 8992.40 8992.40 8992.40 8992.40 8960.40 8960.40 8960.40 8960.40 8928.40 8928.40 8928.40 8928.40 8896.40 8896.40 8896.40 8896.40 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 J0555+3948 09 52 47 44.0 -66.2 3.9 75.7 0 0 14 00 00 14 08 00 =0552+398 10 00 48 42.5 -65.6 4.1 74.8 480 62 14 00 01 14 10 30 J0613+1708 10 03 19 36.4 265.6 3.8 58.1 35 62 14 10 30 14 11 00 =0610+171 10 03 49 36.3 265.7 3.8 58.1 30 65 14 10 31 14 11 00 S255 10 03 49 36.6 266.7 3.8 58.7 -3 65 No stop 14 13 00 --- 10 05 49 36.2 267.0 3.9 58.7 117 81 14 11 01 14 13 00 J0613+1708 10 05 49 35.9 266.0 3.9 58.1 -3 81 No stop 14 14 51 =0610+171 10 07 40 35.5 266.3 3.9 58.2 108 95 14 13 01 14 14 51 S255 10 07 40 35.8 267.3 3.9 58.7 -3 95 No stop 14 16 51 --- 10 09 41 35.4 267.6 3.9 58.7 117 110 14 14 52 14 16 51 J0613+1708 10 09 41 35.1 266.6 3.9 58.2 -3 110 No stop 14 18 42 =0610+171 10 11 32 34.7 266.9 3.9 58.2 108 125 14 16 52 14 18 42 S255 10 11 32 35.0 267.9 4.0 58.7 -3 125 No stop 14 20 42 --- 10 13 32 34.6 268.2 4.0 58.8 117 140 14 18 43 14 21 17 J0613+1708 10 14 07 34.2 267.3 4.0 58.3 32 140 14 21 17 14 23 08 =0610+171 10 15 59 33.8 267.6 4.0 58.3 111 154 14 21 18 14 23 08 S255 10 15 59 34.1 268.5 4.0 58.8 -3 154 No stop 14 25 08 --- 10 17 59 33.7 268.8 4.1 58.8 117 170 14 23 09 14 25 08 J0613+1708 10 17 59 33.4 267.9 4.1 58.3 -3 170 No stop 14 26 59 =0610+171 10 19 50 33.0 268.1 4.1 58.3 108 184 14 25 09 14 26 59 S255 10 19 50 33.3 269.1 4.1 58.8 -3 184 No stop 14 28 59 --- 10 21 51 32.9 269.4 4.1 58.8 117 199 14 27 00 14 28 59 J0613+1708 10 21 51 32.6 268.4 4.1 58.3 -3 199 No stop 14 30 50 =0610+171 10 23 42 32.2 268.7 4.1 58.3 108 213 14 29 00 Schedule for KVNUS (Code Ku ) Page 3 EB072 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 ---------------------------------------------------------------------------------------- --- Mon 11 Mar 2019 Day 70 --- 14 30 50 S255 10 23 42 32.5 269.7 4.2 58.8 -3 213 No stop 14 32 50 --- 10 25 42 32.1 270.0 4.2 58.8 117 229 14 30 51 14 33 25 J0613+1708 10 26 17 31.7 269.1 4.2 58.4 32 229 14 33 25 14 35 16 =0610+171 10 28 09 31.3 269.4 4.2 58.4 111 243 14 33 26 ---------- FF2 ---------- 14 35 16 J0319+4130 10 28 09 12.1 312.9 7.1 52.8 -18 243 No stop 14 43 16 =3C84 10 36 10 10.9 313.8 7.3 51.7 462 305 14 35 17 ---------- Tsys ---------- 14 43 31 J0319+4130 10 36 25 10.9 313.9 7.3 51.6 13 305 14 43 31 14 43 46 =3C84 10 36 40 10.9 313.9 7.3 51.6 15 307 14 43 32 ---------- EVPA-1h ---------- 14 44 46 J0359+5057 10 37 40 21.7 318.1 6.6 59.8 53 307 14 44 46 14 51 46 =NRAO150 10 44 41 20.8 318.7 6.7 58.7 420 360 14 44 47 ---------- FF3 ---------- 14 51 46 J0555+3948 10 44 41 34.5 297.7 4.8 69.8 -10 360 No stop 14 59 46 =0552+398 10 52 43 33.0 298.3 4.9 68.8 470 422 14 51 47 15 01 26 J0613+1708 10 54 23 26.0 273.1 4.7 58.2 88 422 15 01 26 15 01 56 =0610+171 10 54 53 25.9 273.2 4.7 58.2 30 426 15 01 27 15 01 56 S255 10 54 53 26.2 274.1 4.7 58.6 -3 426 No stop 15 03 56 --- 10 56 53 25.8 274.4 4.7 58.5 117 441 15 01 57 15 03 56 J0613+1708 10 56 53 25.5 273.5 4.7 58.2 -3 441 No stop 15 05 47 =0610+171 10 58 45 25.1 273.7 4.7 58.2 108 455 15 03 57 15 05 47 S255 10 58 45 25.4 274.6 4.7 58.5 -3 455 No stop 15 07 47 --- 11 00 45 25.0 274.9 4.8 58.5 117 471 15 05 48 15 07 47 J0613+1708 11 00 45 24.7 274.0 4.8 58.1 -3 471 No stop 15 09 38 =0610+171 11 02 36 24.3 274.3 4.8 58.1 108 485 15 07 48 15 09 38 S255 11 02 36 24.6 275.2 4.8 58.4 -3 485 No stop 15 11 38 --- 11 04 37 24.2 275.4 4.8 58.4 117 500 15 09 39 Schedule for KVNUS (Code Ku ) Page 4 EB072 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 ---------------------------------------------------------------------------------------- --- Mon 11 Mar 2019 Day 70 --- 15 12 13 J0613+1708 11 05 12 23.8 274.6 4.8 58.1 32 500 15 12 13 15 14 04 =0610+171 11 07 03 23.4 274.9 4.9 58.0 111 515 15 12 14 15 14 04 S255 11 07 03 23.7 275.8 4.9 58.3 -3 515 No stop 15 16 04 --- 11 09 03 23.3 276.0 4.9 58.3 117 530 15 14 05 15 16 04 J0613+1708 11 09 03 23.0 275.2 4.9 58.0 -3 530 No stop 15 17 55 =0610+171 11 10 55 22.6 275.4 4.9 58.0 108 544 15 16 05 15 17 55 S255 11 10 55 22.9 276.3 4.9 58.2 -3 544 No stop 15 19 55 --- 11 12 55 22.5 276.6 5.0 58.2 117 560 15 17 56 15 19 55 J0613+1708 11 12 55 22.2 275.7 5.0 57.9 -3 560 No stop 15 21 46 =0610+171 11 14 46 21.9 275.9 5.0 57.9 108 574 15 19 56 15 21 46 S255 11 14 46 22.2 276.8 5.0 58.1 -3 574 No stop 15 23 46 --- 11 16 47 21.8 277.1 5.0 58.1 117 589 15 21 47 15 24 21 J0613+1708 11 17 22 21.3 276.3 5.0 57.8 32 589 15 24 21 15 26 12 =0610+171 11 19 13 21.0 276.5 5.1 57.8 111 603 15 24 22 15 26 12 S255 11 19 13 21.3 277.4 5.1 58.0 -3 603 No stop 15 28 12 --- 11 21 13 20.9 277.7 5.1 58.0 117 619 15 26 13 15 28 12 J0613+1708 11 21 13 20.6 276.8 5.1 57.7 -3 619 No stop 15 30 03 =0610+171 11 23 05 20.2 277.1 5.1 57.7 108 633 15 28 13 15 30 03 S255 11 23 05 20.5 277.9 5.2 57.9 -3 633 No stop 15 32 03 --- 11 25 05 20.1 278.2 5.2 57.9 117 648 15 30 04 15 32 03 J0613+1708 11 25 05 19.8 277.3 5.2 57.6 -3 648 No stop 15 33 54 =0610+171 11 26 56 19.4 277.6 5.2 57.6 108 663 15 32 04 15 33 54 S255 11 26 56 19.7 278.5 5.2 57.8 -3 663 No stop 15 35 54 --- 11 28 57 19.3 278.7 5.2 57.7 117 678 15 33 55 15 36 29 J0613+1708 11 29 32 18.9 278.0 5.2 57.5 32 678 15 36 29 15 38 20 =0610+171 11 31 23 18.5 278.2 5.3 57.4 111 692 15 36 30 15 38 20 S255 11 31 23 18.8 279.1 5.3 57.6 -3 692 No stop 15 40 20 --- 11 33 23 18.4 279.3 5.3 57.6 117 708 15 38 21 15 40 20 J0613+1708 11 33 23 18.1 278.5 5.3 57.4 -3 708 No stop 15 42 11 =0610+171 11 35 15 17.7 278.7 5.3 57.3 108 722 15 40 21 Schedule for KVNUS (Code Ku ) Page 5 EB072 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 ---------------------------------------------------------------------------------------- --- Mon 11 Mar 2019 Day 70 --- 15 42 11 S255 11 35 15 18.0 279.6 5.4 57.5 -3 722 No stop 15 44 11 --- 11 37 15 17.6 279.8 5.4 57.4 117 737 15 42 12 15 44 11 J0613+1708 11 37 15 17.3 279.0 5.4 57.2 -3 737 No stop 15 46 02 =0610+171 11 39 06 17.0 279.2 5.4 57.2 108 752 15 44 12 15 46 02 S255 11 39 06 17.3 280.1 5.4 57.4 -3 752 No stop 15 48 02 --- 11 41 07 16.9 280.4 5.5 57.3 117 767 15 46 03 15 48 37 J0613+1708 11 41 42 16.4 279.6 5.4 57.1 32 767 15 48 37 15 50 28 =0610+171 11 43 33 16.1 279.8 5.5 57.0 111 781 15 48 38 ---------- EVPA-2h ---------- 15 50 28 J0359+5057 11 43 33 13.3 324.4 7.7 48.9 -18 781 No stop 15 58 28 =NRAO150 11 51 34 12.4 325.2 7.8 47.5 462 843 15 50 29 16 00 58 J0613+1708 11 54 05 14.0 281.3 5.7 56.6 132 843 16 00 58 16 01 28 =0610+171 11 54 35 13.9 281.3 5.7 56.6 30 847 16 00 59 16 01 28 S255 11 54 35 14.2 282.2 5.7 56.7 -3 847 No stop 16 03 28 --- 11 56 35 13.8 282.4 5.7 56.7 117 862 16 01 29 16 04 03 J0613+1708 11 57 10 13.3 281.7 5.7 56.5 32 862 16 04 03 16 05 54 =0610+171 11 59 01 13.0 281.9 5.7 56.4 111 876 16 04 04 16 05 54 S255 11 59 01 13.3 282.8 5.8 56.5 -3 876 No stop 16 07 54 --- 12 01 02 12.9 283.0 5.8 56.4 117 892 16 05 55 16 07 54 J0613+1708 12 01 02 12.6 282.2 5.8 56.3 -3 892 No stop 16 09 45 =0610+171 12 02 53 12.2 282.5 5.8 56.2 108 906 16 07 55 16 09 45 S255 12 02 53 12.5 283.3 5.8 56.4 -3 906 No stop 16 11 45 --- 12 04 53 12.1 283.6 5.8 56.3 117 921 16 09 46 16 11 45 J0613+1708 12 04 53 11.8 282.7 5.8 56.1 -3 921 No stop 16 13 36 =0610+171 12 06 45 11.4 283.0 5.9 56.1 108 935 16 11 46 16 13 36 S255 12 06 45 11.8 283.8 5.9 56.2 -3 935 No stop 16 15 36 --- 12 08 45 11.4 284.1 5.9 56.1 117 951 16 13 37 16 16 11 J0613+1708 12 09 20 10.9 283.3 5.9 55.9 32 951 16 16 11 16 18 02 =0610+171 12 11 11 10.6 283.6 5.9 55.8 111 965 16 16 12 Schedule for KVNUS (Code Ku ) Page 6 EB072 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 ---------------------------------------------------------------------------------------- --- Mon 11 Mar 2019 Day 70 --- 16 18 02 S255 12 11 11 10.9 284.4 6.0 55.9 -3 965 No stop 16 20 02 --- 12 13 12 10.5 284.7 6.0 55.8 117 980 16 18 03 16 20 02 J0613+1708 12 13 12 10.2 283.9 6.0 55.8 -3 980 No stop 16 21 53 =0610+171 12 15 03 9.8 284.1 6.0 55.7 108 995 16 20 03 16 21 53 S255 12 15 03 10.1 284.9 6.0 55.7 -3 995 No stop 16 23 53 --- 12 17 03 9.7 285.2 6.1 55.6 117 1010 16 21 54 16 23 53 J0613+1708 12 17 03 9.4 284.4 6.0 55.6 -3 1010 No stop 16 25 44 =0610+171 12 18 55 9.0 284.7 6.1 55.5 108 1024 16 23 54 16 25 44 S255 12 18 55 9.4 285.5 6.1 55.5 -3 1024 No stop 16 27 44 --- 12 20 55 9.0 285.7 6.1 55.4 117 1040 16 25 45 16 28 19 J0613+1708 12 21 30 8.5 285.0 6.1 55.3 32 1040 16 28 19 16 30 10 =0610+171 12 23 21 8.2 285.3 6.1 55.2 111 1054 16 28 20 16 30 10 S255 12 23 21 8.5 286.1 6.2 55.3 -3 1054 No stop 16 32 10 --- 12 25 22 8.1 286.3 6.2 55.2 117 1069 16 30 11 16 32 10 J0613+1708 12 25 22 7.8 285.5 6.2 55.1 -3 1069 No stop 16 34 01 =0610+171 12 27 13 7.4 285.8 6.2 55.0 108 1083 16 32 11 16 34 01 S255 12 27 13 7.8 286.6 6.2 55.1 -3 1083 No stop 16 36 01 --- 12 29 13 7.4 286.9 6.3 54.9 117 1099 16 34 02 16 36 01 J0613+1708 12 29 13 7.0 286.1 6.2 54.9 -3 1099 No stop 16 37 52 =0610+171 12 31 05 6.6 286.3 6.3 54.8 108 1113 16 36 02 16 37 52 S255 12 31 05 7.0 287.1 6.3 54.8 -3 1113 No stop 16 39 52 --- 12 33 05 6.6 287.4 6.3 54.7 117 1128 16 37 53 16 40 27 J0613+1708 12 33 40 6.1 286.7 6.3 54.6 32 1128 16 40 27 16 42 18 =0610+171 12 35 31 5.8 287.0 6.3 54.5 111 1143 16 40 28 16 42 18 S255 12 35 31 6.1 287.7 6.4 54.6 -3 1143 No stop 16 44 18 --- 12 37 32 5.8 288.0 6.4 54.4 117 1158 16 42 19 16 44 18 J0613+1708 12 37 32 5.4 287.2 6.4 54.4 -3 1158 No stop 16 46 09 =0610+171 12 39 23 5.0 287.5 6.4 54.3 108 1172 16 44 19 16 46 09 S255 12 39 23 5.4 288.3 6.4 54.3 -3 1172 No stop 16 48 09 --- 12 41 23 5.0 288.6 6.5 54.2 117 1188 16 46 10 Schedule for KVNUS (Code Ku ) Page 7 EB072 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 ---------------------------------------------------------------------------------------- --- Mon 11 Mar 2019 Day 70 --- ---------- EVPA,FF4 ---------- 17 50 07 J0854+2006 13 43 32 25.9 277.0 4.8 59.3 3704 1188 17 50 07 17 58 07 =OJ287 13 51 33 24.3 278.0 4.9 59.0 480 1249 17 50 08 ---------- EVPA,FF5 ---------- 18 49 39 J0854+2006 14 43 13 14.0 284.8 5.8 56.8 3090 1249 18 49 39 18 57 39 =OJ287 14 51 15 12.4 285.9 5.9 56.4 480 1311 18 49 40 ---------- FF6 ---------- 20 49 53 J1229+0203 16 43 47 22.6 255.4 4.2 52.0 6713 1311 20 49 53 20 57 53 =3C273B 16 51 48 21.0 256.8 4.4 52.4 480 1372 20 49 54 ---------- FF7 ---------- 21 51 25 J1229+0203 17 45 29 10.2 265.1 5.3 54.2 3210 1372 21 51 25 22 00 00 =3C273B 17 54 06 8.5 266.3 5.4 54.3 515 1438 21 51 26 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess119.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: 18 Station: KVNUS 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= 31200.00 31200.00 31200.00 31200.00 31200.00 31200.00 31200.00 31200.00 31200.00 31200.00 31200.00 31200.00 31200.00 31200.00 31200.00 31200.00 Net SB= L L U U L L U U L L U U L L U U IF SB = L L L L L L L L L L L L L L L L Pol. = RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP BBC = 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 BBC SB= U U L L U U L L U U L L U U L L IF = D C D C D C D C D C D C D C D C The following frequency sets based on these setups were used. Frequency Set: 16 Based on FREQ, BW, and/or DOPPLER in schedule. Used with PCAL = off LO sum= 22207.60 22207.60 22207.60 22207.60 22239.60 22239.60 22239.60 22239.60 22271.60 22271.60 22271.60 22271.60 22303.60 22303.60 22303.60 22303.60 BBC fr= 8992.40 8992.40 8992.40 8992.40 8960.40 8960.40 8960.40 8960.40 8928.40 8928.40 8928.40 8928.40 8896.40 8896.40 8896.40 8896.40 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: 16 17 18 Track assignments are: track1= 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32 barrel=roll_off POSITIONS OF SOURCES USED IN RECORDING SCANS Source Source position (RA/Dec) Error (B1950) (J2000) (Date) (mas) * S255 06 09 58.588596 * 06 12 54.006409 06 14 00.562849 0.00 18 00 12.94044 * 17 59 22.95890 17 58 55.64592 0.00 From catalog imbedded in main SCHED input file. Doppler based on LSR frame and radio definition. Velocities: 5.00 5.00 5.00 5.00 5.00 5.00 5.00 5.00 5.00 5.00 5.00 5.00 5.00 5.00 3C84 03 16 29.567265 * 03 19 48.160096 03 21 02.666340 1.50 * J0319+4130 41 19 51.91692 * 41 30 42.10404 41 34 47.38680 2.86 0316+413 /home/guest/rmc/SCHED/sched11.5/catalogs/sources.gsfc J0319+41 GSFC 2016a X/S astro solution, 10291 observations. Doppler based on other sources. NRAO150 03 55 45.261365 * 03 59 29.747266 04 00 54.260481 0.03 * J0359+5057 50 49 20.28574 * 50 57 50.16169 51 01 05.24597 0.02 0355+508 /home/guest/rmc/SCHED/sched11.5/catalogs/sources.gsfc J0359+50 GSFC 2016a X/S astro solution, 22807 observations. Doppler based on other sources. 0552+398 05 52 01.407168 * 05 55 30.805611 05 56 50.176416 0.00 * J0555+3948 39 48 21.94581 * 39 48 49.16496 39 48 58.12825 0.00 DA193 /home/guest/rmc/SCHED/sched11.5/catalogs/sources.gsfc J0555+39 GSFC 2016a X/S astro solution, 415688 observations. Doppler based on other sources. 0610+171 06 10 42.033416 * 06 13 36.360087 06 14 42.506645 0.10 * J0613+1708 17 09 18.04876 * 17 08 24.94616 17 07 56.17587 0.18 /home/guest/rmc/SCHED/sched11.5/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 137 observations. Doppler based on other sources. OJ287 08 51 57.250615 * 08 54 48.874927 08 55 54.625137 0.00 * J0854+2006 20 17 58.41740 * 20 06 30.64085 20 02 02.47560 0.00 0851+202 /home/guest/rmc/SCHED/sched11.5/catalogs/sources.gsfc J0854+20 GSFC 2016a X/S astro solution, 270807 observations. Doppler based on other sources. 3C273B 12 26 33.245835 * 12 29 06.699731 12 30 05.830170 1.03 * J1229+0203 02 19 43.30570 * 02 03 08.59820 01 56 45.51768 1.38 3C273 /home/guest/rmc/SCHED/sched11.5/catalogs/sources.gsfc 1226+023 GSFC 2016a X/S astro solution, 32136 observations. J1229+02 Doppler based on other sources. 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 S255 sess119.K1024 1 2 3 4 5 6 7 8 9 10 11 15 + 3.000 266.541 J0319+4130 sess119.K1024 1 2 3 4 5 6 7 8 9 10 11 15 + 0.271 23.035 J0359+5057 sess119.K1024 1 2 3 4 5 6 7 8 9 11 15 16 0.250 25.651 J0555+3948 sess119.K1024 1 2 3 4 5 6 7 8 9 10 11 15 + 0.267 37.245 J0613+1708 sess119.K1024 1 2 3 4 5 6 7 8 9 10 11 15 + 2.842 262.919 J0854+2006 sess119.K1024 1 2 3 4 5 6 7 8 9 10 11 15 + 0.400 40.424 J1229+0203 sess119.K1024 1 2 3 4 5 6 7 8 9 10 11 15 + 0.276 25.967 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) S255 102.4 J0319+4130 69.7 J0359+5057 79.6 J0555+3948 98.1 J0613+1708 102.6 J0854+2006 139.8 J1229+0203 164.0 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