COVER INFORMATION Station: JB2_MERL (Code Jm ) Experiment: Confirmation of close dual quasars at z=0.6-2.5 Exp. Code: ES103B Schedule Version: 3.00 Processed by SCHED version: 11.60 Release 11.6; April 2020 PI: Yiping SHU Address: Purple Mountain Observatory, Chinese Academy of Sciences No. 10 Yuanhua Road Nanjing China Phone: +86 15946854256 EMAIL: yiping.shu@pmo.ac.cn Fax: Phone during observation: +86 15946854256 Observing mode: vlbi Notes: # Please turn PHASE CAL ON # v3: shorter phase-ref cycle [5min vice 8min] COVER LETTER: Schedule for JB2_MERL (Code Jm ) Page 2 Confirmation of close dual quasars at z=0.6-2.5 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 ---------------------------------------------------------------------------------------- --- Sun 23 Oct 2022 Day 296 --- Next scan frequencies: 4926.49 4926.49 Next BBC frequencies: 737.51 737.51 Next scan bandwidths: 64.00 64.00 02 00 00 J0927+3902 03 56 42 34.1 68.8 -5.5 -45.8 0 0 02 00 00 02 05 00 =4C39.25 04 01 43 34.8 69.6 -5.4 -46.2 300 19 02 00 01 02 06 00 J0919+3324 04 02 43 32.1 75.9 -5.3 -44.0 18 19 02 06 00 02 11 00 =0916+336 04 07 44 32.8 76.8 -5.2 -44.2 300 39 02 06 01 02 11 00 SDSSJ0908+34 04 07 44 35.3 77.4 -5.0 -45.3 -24 39 No stop 02 14 00 --- 04 10 44 35.8 77.9 -5.0 -45.4 156 50 02 11 01 02 14 30 J0919+3324 04 11 14 33.4 77.4 -5.2 -44.4 7 50 02 14 30 02 16 30 =0916+336 04 13 15 33.6 77.8 -5.1 -44.4 120 58 02 14 31 02 16 30 SDSSJ0908+34 04 13 15 36.2 78.4 -5.0 -45.5 -24 58 No stop 02 19 30 --- 04 16 15 36.6 78.9 -4.9 -45.6 156 70 02 16 31 02 19 30 J0919+3324 04 16 15 34.1 78.3 -5.1 -44.5 -23 70 No stop 02 21 30 =0916+336 04 18 15 34.4 78.7 -5.0 -44.6 97 77 02 19 31 02 21 30 SDSSJ0908+34 04 18 15 36.9 79.3 -4.9 -45.7 -24 77 No stop 02 24 30 --- 04 21 16 37.3 79.8 -4.8 -45.8 156 89 02 21 31 02 25 00 J0919+3324 04 21 46 34.9 79.3 -5.0 -44.7 7 89 02 25 00 02 27 00 =0916+336 04 23 46 35.2 79.7 -4.9 -44.8 120 97 02 25 01 02 27 00 SDSSJ0908+34 04 23 46 37.7 80.3 -4.8 -45.9 -24 97 No stop 02 30 00 --- 04 26 47 38.1 80.8 -4.7 -46.0 156 108 02 27 01 02 30 00 J0919+3324 04 26 47 35.6 80.2 -4.9 -44.9 -23 108 No stop 02 32 00 =0916+336 04 28 47 35.9 80.6 -4.9 -45.0 97 116 02 30 01 02 32 00 SDSSJ0908+34 04 28 47 38.4 81.2 -4.7 -46.0 -24 116 No stop 02 35 00 --- 04 31 48 38.9 81.7 -4.6 -46.1 156 128 02 32 01 02 35 30 J0919+3324 04 32 18 36.4 81.2 -4.8 -45.1 7 128 02 35 30 02 37 30 =0916+336 04 34 18 36.7 81.6 -4.8 -45.1 120 135 02 35 31 02 37 30 SDSSJ0908+34 04 34 18 39.3 82.2 -4.6 -46.2 -24 135 No stop 02 40 30 --- 04 37 18 39.7 82.7 -4.6 -46.3 156 147 02 37 31 02 40 30 J0919+3324 04 37 18 37.2 82.2 -4.7 -45.2 -23 147 No stop 02 42 30 =0916+336 04 39 19 37.5 82.5 -4.7 -45.3 97 155 02 40 31 Schedule for JB2_MERL (Code Jm ) Page 3 Confirmation of close dual quasars at z=0.6-2.5 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 ---------------------------------------------------------------------------------------- --- Sun 23 Oct 2022 Day 296 --- 02 42 30 SDSSJ0908+34 04 39 19 40.0 83.1 -4.5 -46.3 -24 155 No stop 02 45 30 --- 04 42 19 40.4 83.7 -4.5 -46.4 156 166 02 42 31 02 46 00 J0919+3324 04 42 49 38.0 83.2 -4.6 -45.3 7 166 02 46 00 02 48 00 =0916+336 04 44 50 38.3 83.6 -4.6 -45.4 120 174 02 46 01 02 48 00 SDSSJ0908+34 04 44 50 40.8 84.1 -4.4 -46.4 -24 174 No stop 02 51 00 --- 04 47 50 41.3 84.7 -4.4 -46.5 156 185 02 48 01 02 51 00 J0919+3324 04 47 50 38.8 84.1 -4.5 -45.4 -23 185 No stop 02 53 00 =0916+336 04 49 51 39.1 84.5 -4.5 -45.5 97 193 02 51 01 02 53 00 SDSSJ0908+34 04 49 51 41.6 85.1 -4.3 -46.5 -24 193 No stop 02 56 00 --- 04 52 51 42.0 85.6 -4.3 -46.6 156 205 02 53 01 02 56 30 J0919+3324 04 53 21 39.6 85.2 -4.5 -45.5 7 205 02 56 30 02 58 30 =0916+336 04 55 21 39.9 85.5 -4.4 -45.6 120 213 02 56 31 02 58 30 SDSSJ0908+34 04 55 21 42.4 86.1 -4.3 -46.6 -24 213 No stop 03 01 30 --- 04 58 22 42.8 86.7 -4.2 -46.7 156 224 02 58 31 03 01 30 J0919+3324 04 58 22 40.3 86.1 -4.4 -45.6 -23 224 No stop 03 03 30 =0916+336 05 00 22 40.6 86.5 -4.3 -45.6 97 232 03 01 31 03 03 30 SDSSJ0908+34 05 00 22 43.1 87.1 -4.2 -46.7 -24 232 No stop 03 06 30 --- 05 03 23 43.6 87.7 -4.1 -46.7 156 243 03 03 31 03 07 00 J0919+3324 05 03 53 41.1 87.2 -4.3 -45.7 7 243 03 07 00 03 09 00 =0916+336 05 05 53 41.4 87.6 -4.2 -45.7 120 251 03 07 01 03 09 00 SDSSJ0908+34 05 05 53 44.0 88.1 -4.1 -46.7 -24 251 No stop 03 12 00 --- 05 08 54 44.4 88.7 -4.0 -46.7 156 263 03 09 01 03 12 00 J0919+3324 05 08 54 41.9 88.2 -4.2 -45.7 -23 263 No stop 03 14 00 =0916+336 05 10 54 42.2 88.6 -4.2 -45.7 97 271 03 12 01 03 14 00 SDSSJ0908+34 05 10 54 44.7 89.1 -4.0 -46.8 -24 271 No stop 03 17 00 --- 05 13 54 45.2 89.7 -3.9 -46.8 156 282 03 14 01 03 17 30 J0919+3324 05 14 25 42.7 89.3 -4.1 -45.7 7 282 03 17 30 03 19 30 =0916+336 05 16 25 43.0 89.7 -4.1 -45.7 120 290 03 17 31 03 19 30 SDSSJ0908+34 05 16 25 45.5 90.2 -3.9 -46.8 -24 290 No stop 03 22 30 --- 05 19 25 46.0 90.8 -3.8 -46.8 156 301 03 19 31 Schedule for JB2_MERL (Code Jm ) Page 4 Confirmation of close dual quasars at z=0.6-2.5 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 ---------------------------------------------------------------------------------------- --- Sun 23 Oct 2022 Day 296 --- 03 22 30 J0919+3324 05 19 25 43.5 90.3 -4.0 -45.7 -23 301 No stop 03 24 30 =0916+336 05 21 26 43.8 90.7 -4.0 -45.7 97 309 03 22 31 03 24 30 SDSSJ0908+34 05 21 26 46.3 91.2 -3.8 -46.7 -24 309 No stop 03 27 30 --- 05 24 26 46.7 91.9 -3.8 -46.7 156 321 03 24 31 03 28 00 J0919+3324 05 24 56 44.3 91.4 -3.9 -45.7 7 321 03 28 00 03 30 00 =0916+336 05 26 57 44.6 91.8 -3.9 -45.7 120 328 03 28 01 03 30 00 SDSSJ0908+34 05 26 57 47.1 92.4 -3.7 -46.7 -24 328 No stop 03 33 00 --- 05 29 57 47.6 93.0 -3.7 -46.7 156 340 03 30 01 03 33 00 J0919+3324 05 29 57 45.0 92.4 -3.8 -45.7 -23 340 No stop 03 35 00 =0916+336 05 31 57 45.3 92.8 -3.8 -45.7 97 348 03 33 01 03 35 00 SDSSJ0908+34 05 31 57 47.9 93.4 -3.6 -46.7 -24 348 No stop 03 38 00 --- 05 34 58 48.3 94.1 -3.6 -46.6 156 359 03 35 01 03 38 30 J0919+3324 05 35 28 45.9 93.5 -3.8 -45.6 7 359 03 38 30 03 40 30 =0916+336 05 37 28 46.2 94.0 -3.7 -45.6 120 367 03 38 31 03 40 30 SDSSJ0908+34 05 37 28 48.7 94.6 -3.5 -46.6 -24 367 No stop 03 43 30 --- 05 40 29 49.1 95.2 -3.5 -46.5 156 379 03 40 31 03 43 30 J0919+3324 05 40 29 46.6 94.6 -3.7 -45.6 -23 379 No stop 03 45 30 =0916+336 05 42 29 46.9 95.0 -3.6 -45.5 97 386 03 43 31 03 45 30 SDSSJ0908+34 05 42 29 49.4 95.7 -3.5 -46.5 -24 386 No stop 03 48 30 --- 05 45 30 49.9 96.3 -3.4 -46.4 156 398 03 45 31 03 49 00 J0919+3324 05 46 00 47.4 95.8 -3.6 -45.4 7 398 03 49 00 03 51 00 =0916+336 05 48 00 47.7 96.2 -3.5 -45.4 120 406 03 49 01 03 51 00 SDSSJ0908+34 05 48 00 50.3 96.9 -3.4 -46.3 -24 406 No stop 03 54 00 --- 05 51 01 50.7 97.6 -3.3 -46.2 156 417 03 51 01 03 54 00 J0919+3324 05 51 01 48.2 96.9 -3.5 -45.3 -23 417 No stop 03 56 00 =0916+336 05 53 01 48.5 97.3 -3.5 -45.3 97 425 03 54 01 03 57 00 J0927+3902 05 54 01 51.2 89.4 -3.6 -50.3 13 425 03 57 00 04 02 00 =4C39.25 05 59 02 52.0 90.4 -3.5 -50.3 300 444 03 57 01 04 03 00 J0919+3324 06 00 02 49.5 98.9 -3.3 -45.0 12 444 04 03 00 04 08 00 =0916+336 06 05 03 50.3 100.1 -3.3 -44.9 300 464 04 03 01 Schedule for JB2_MERL (Code Jm ) Page 5 Confirmation of close dual quasars at z=0.6-2.5 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 ---------------------------------------------------------------------------------------- --- Sun 23 Oct 2022 Day 296 --- 04 08 00 SDSSJ0908+34 06 05 03 52.8 100.8 -3.1 -45.7 -24 464 No stop 04 11 00 --- 06 08 03 53.2 101.5 -3.0 -45.6 156 475 04 08 01 04 11 30 J0919+3324 06 08 33 50.8 100.9 -3.2 -44.7 7 475 04 11 30 04 13 30 =0916+336 06 10 34 51.1 101.3 -3.2 -44.6 120 483 04 11 31 04 13 30 SDSSJ0908+34 06 10 34 53.6 102.1 -3.0 -45.4 -24 483 No stop 04 16 30 --- 06 13 34 54.0 102.9 -2.9 -45.3 156 495 04 13 31 04 16 30 J0919+3324 06 13 34 51.5 102.1 -3.1 -44.5 -23 495 No stop 04 18 30 =0916+336 06 15 35 51.8 102.5 -3.1 -44.4 97 502 04 16 31 04 18 30 SDSSJ0908+34 06 15 35 54.3 103.3 -2.9 -45.1 -24 502 No stop 04 21 30 --- 06 18 35 54.8 104.1 -2.9 -45.0 156 514 04 18 31 04 22 00 J0919+3324 06 19 05 52.3 103.4 -3.0 -44.2 7 514 04 22 00 04 24 00 =0916+336 06 21 05 52.6 103.9 -3.0 -44.1 120 522 04 22 01 04 24 00 SDSSJ0908+34 06 21 05 55.1 104.7 -2.8 -44.8 -24 522 No stop 04 27 00 --- 06 24 06 55.5 105.5 -2.8 -44.6 156 533 04 24 01 04 27 00 J0919+3324 06 24 06 53.1 104.6 -2.9 -43.9 -23 533 No stop 04 29 00 =0916+336 06 26 06 53.3 105.1 -2.9 -43.7 97 541 04 27 01 04 29 00 SDSSJ0908+34 06 26 06 55.8 106.0 -2.7 -44.4 -24 541 No stop 04 32 00 --- 06 29 07 56.3 106.8 -2.7 -44.2 156 553 04 29 01 04 32 30 J0919+3324 06 29 37 53.8 106.0 -2.8 -43.5 7 553 04 32 30 04 34 30 =0916+336 06 31 37 54.1 106.6 -2.8 -43.4 120 560 04 32 31 04 34 30 SDSSJ0908+34 06 31 37 56.6 107.5 -2.6 -44.0 -24 560 No stop 04 37 30 --- 06 34 38 57.1 108.3 -2.6 -43.8 156 572 04 34 31 04 37 30 J0919+3324 06 34 38 54.6 107.3 -2.8 -43.1 -23 572 No stop 04 39 30 =0916+336 06 36 38 54.9 107.9 -2.7 -43.0 97 580 04 37 31 04 39 30 SDSSJ0908+34 06 36 38 57.3 108.9 -2.6 -43.6 -23 580 No stop 04 42 30 --- 06 39 39 57.8 109.7 -2.5 -43.3 157 591 04 39 31 04 43 00 J0919+3324 06 40 09 55.4 108.8 -2.7 -42.7 7 591 04 43 00 04 45 00 =0916+336 06 42 09 55.6 109.4 -2.6 -42.5 120 599 04 43 01 04 45 00 SDSSJ0908+34 06 42 09 58.1 110.4 -2.5 -43.1 -23 599 No stop 04 48 00 --- 06 45 09 58.5 111.3 -2.4 -42.8 157 611 04 45 01 Schedule for JB2_MERL (Code Jm ) Page 6 Confirmation of close dual quasars at z=0.6-2.5 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 ---------------------------------------------------------------------------------------- --- Sun 23 Oct 2022 Day 296 --- 04 48 00 J0919+3324 06 45 09 56.1 110.2 -2.6 -42.2 -23 611 No stop 04 50 00 =0916+336 06 47 10 56.3 110.7 -2.6 -42.1 97 618 04 48 01 04 50 00 SDSSJ0908+34 06 47 10 58.8 111.8 -2.4 -42.5 -23 618 No stop 04 53 00 --- 06 50 10 59.2 112.7 -2.3 -42.2 157 630 04 50 01 04 53 30 J0919+3324 06 50 40 56.8 111.7 -2.5 -41.7 7 630 04 53 30 04 55 30 =0916+336 06 52 41 57.1 112.3 -2.5 -41.5 120 638 04 53 31 04 55 30 SDSSJ0908+34 06 52 41 59.6 113.5 -2.3 -41.9 -23 638 No stop 04 58 30 --- 06 55 41 60.0 114.4 -2.2 -41.6 157 649 04 55 31 04 58 30 J0919+3324 06 55 41 57.5 113.2 -2.4 -41.2 -23 649 No stop 05 00 30 =0916+336 06 57 41 57.8 113.8 -2.4 -41.0 97 657 04 58 31 05 00 30 SDSSJ0908+34 06 57 41 60.3 115.0 -2.2 -41.3 -23 657 No stop 05 03 30 --- 07 00 42 60.7 116.0 -2.2 -40.9 157 669 05 00 31 05 04 00 J0919+3324 07 01 12 58.3 114.8 -2.3 -40.5 7 669 05 04 00 05 06 00 =0916+336 07 03 12 58.5 115.4 -2.3 -40.3 120 676 05 04 01 05 06 00 SDSSJ0908+34 07 03 12 61.0 116.8 -2.1 -40.6 -23 676 No stop 05 09 00 --- 07 06 13 61.4 117.7 -2.1 -40.2 157 688 05 06 01 05 09 00 J0919+3324 07 06 13 59.0 116.4 -2.2 -39.9 -23 688 No stop 05 11 00 =0916+336 07 08 13 59.2 117.0 -2.2 -39.7 97 696 05 09 01 05 11 00 SDSSJ0908+34 07 08 13 61.7 118.4 -2.0 -39.9 -23 696 No stop 05 14 00 --- 07 11 14 62.1 119.4 -2.0 -39.4 157 707 05 11 01 05 14 30 J0919+3324 07 11 44 59.7 118.1 -2.1 -39.2 7 707 05 14 30 05 16 30 =0916+336 07 13 44 59.9 118.7 -2.1 -38.9 120 715 05 14 31 05 16 30 SDSSJ0908+34 07 13 44 62.4 120.3 -1.9 -39.0 -23 715 No stop 05 19 30 --- 07 16 45 62.8 121.3 -1.9 -38.5 157 727 05 16 31 05 19 30 J0919+3324 07 16 45 60.3 119.7 -2.1 -38.5 -23 727 No stop 05 21 30 =0916+336 07 18 45 60.6 120.4 -2.0 -38.2 97 734 05 19 31 05 21 30 SDSSJ0908+34 07 18 45 63.0 122.0 -1.9 -38.1 -23 734 No stop 05 24 30 --- 07 21 45 63.4 123.1 -1.8 -37.6 157 746 05 21 31 05 25 00 J0919+3324 07 22 15 61.1 121.6 -2.0 -37.6 7 746 05 25 00 05 27 00 =0916+336 07 24 16 61.3 122.3 -1.9 -37.3 120 754 05 25 01 Schedule for JB2_MERL (Code Jm ) Page 7 Confirmation of close dual quasars at z=0.6-2.5 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 ---------------------------------------------------------------------------------------- --- Sun 23 Oct 2022 Day 296 --- 05 27 00 SDSSJ0908+34 07 24 16 63.7 124.0 -1.8 -37.1 -24 754 No stop 05 30 00 --- 07 27 16 64.1 125.1 -1.7 -36.6 156 765 05 27 01 05 30 00 J0919+3324 07 27 16 61.7 123.3 -1.9 -36.8 -23 765 No stop 05 32 00 =0916+336 07 29 17 61.9 124.0 -1.9 -36.4 97 773 05 30 01 05 32 00 SDSSJ0908+34 07 29 17 64.3 125.9 -1.7 -36.2 -24 773 No stop 05 35 00 --- 07 32 17 64.7 127.1 -1.6 -35.5 156 785 05 32 01 05 35 30 J0919+3324 07 32 47 62.4 125.3 -1.8 -35.8 7 785 05 35 30 05 37 30 =0916+336 07 34 48 62.6 126.0 -1.8 -35.4 120 792 05 35 31 05 37 30 SDSSJ0908+34 07 34 48 65.0 128.1 -1.6 -35.0 -25 792 No stop 05 40 30 --- 07 37 48 65.4 129.3 -1.5 -34.3 155 804 05 37 31 05 40 30 J0919+3324 07 37 48 63.0 127.2 -1.7 -34.8 -24 804 No stop 05 42 30 =0916+336 07 39 48 63.2 127.9 -1.7 -34.4 96 812 05 40 31 05 42 30 SDSSJ0908+34 07 39 48 65.6 130.1 -1.5 -33.9 -26 812 No stop 05 45 30 --- 07 42 49 65.9 131.3 -1.5 -33.2 154 823 05 42 31 05 46 00 J0919+3324 07 43 19 63.6 129.3 -1.6 -33.7 5 823 05 46 00 05 48 00 =0916+336 07 45 19 63.9 130.1 -1.6 -33.2 120 831 05 46 01 05 48 00 SDSSJ0908+34 07 45 19 66.2 132.4 -1.4 -32.5 -27 831 No stop 05 51 00 --- 07 48 20 66.5 133.7 -1.4 -31.8 153 842 05 48 01 05 51 00 J0919+3324 07 48 20 64.2 131.3 -1.5 -32.6 -26 842 No stop 05 53 00 =0916+336 07 50 20 64.4 132.1 -1.5 -32.1 94 850 05 51 01 05 54 00 J0927+3902 07 51 20 68.1 121.0 -1.6 -41.3 4 850 05 54 00 05 59 00 =4C39.25 07 56 21 68.7 123.0 -1.5 -40.2 300 870 05 54 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess322.C2048 --- 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: 10 Station: JB2_MERL Total bit rate: 512 Format: VDIF Bits per sample: 2 Sample rate:128.000 Number of channels: 2 DBE type: Speedup factor: 1.00 Disk used to record data. 1st LO= 5664.00 5664.00 Net SB= U U IF SB = L L Pol. = RCP LCP BBC = 1 9 BBC SB= L L IF = A1 B1 The following frequency sets based on these setups were used. Frequency Set: 2 Setup file default. Used with PCAL = off LO sum= 4926.49 4926.49 BBC fr= 737.51 737.51 Bandwd= 64.00 64.00 Matching frequency sets: 2 Track assignments are: track1= 1, 2 barrel=roll_off POSITIONS OF SOURCES USED IN RECORDING SCANS Source Source position (RA/Dec) Error (B1950) (J2000) (Date) (mas) * SDSSJ0908+34 09 05 52.608649 * 09 08 58.280000 09 10 21.618122 0.00 35 03 00.21553 * 34 50 49.16000 34 45 16.31015 0.00 From catalog imbedded in main SCHED input file. 0916+336 09 16 06.251034 * 09 19 08.787129 09 20 30.656481 0.09 * J0919+3324 33 37 22.76481 * 33 24 41.94350 33 18 56.25050 0.14 J0919+33 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 155 observations. 4C39.25 09 23 55.319216 * 09 27 03.013937 09 28 27.129152 0.31 * J0927+3902 39 15 23.56644 * 39 02 20.85185 38 56 23.38957 0.16 0923+392 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc J0927+39 GSFC 2016a X/S astro solution, 250526 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 SDSSJ0908+3sess322.C2048 1 2 3 4 5 6 7 8 9 10 2.000 76.750 J0919+3324 sess322.C2048 1 2 3 4 5 6 7 8 9 10 1.500 60.879 J0927+3902 sess322.C2048 1 2 3 4 5 6 7 8 9 10 0.250 10.469 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) SDSSJ0908+34 80.7 J0919+3324 78.2 J0927+3902 78.9 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