COVER INFORMATION Station: KNOCKIN (Code Kn ) Experiment: Tracing the Radio Outflows in RQ AGN from Pc- to Kpc-scales Exp. Code: EG131H Schedule Version: 1.00 Processed by SCHED version: 11.60 Release 11.6; April 2020 PI: Salmoli Ghosh Address: National Centre for Radio Astrophysics - TIFR S.P. Pune Univ. Campus, Ganeshkhind Pune India : 411007 Phone: (+91)020-25719000 EMAIL: salmoli.ghosh@gmail.com Fax: Phone during observation: (+91)8240982699/(+91)020-25719230 Observing mode: Phase-referencing continuum Notes: PCAL OFF Schedule for KNOCKIN (Code Kn ) Page 2 Tracing the Radio Outflows in RQ AGN from Pc- to Kpc-scales 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 2 Mar 2025 Day 61 --- Next scan frequencies: 1626.49 1626.49 Next BBC frequencies: 645.51 645.51 Next scan bandwidths: 64.00 64.00 13 30 00 3C84 00 00 23 54.9 87.9 -3.4 -53.9 0 0 13 30 00 13 37 00 --- 00 07 24 55.9 89.3 -3.2 -54.0 420 27 13 30 01 13 42 00 J0310-0823 00 12 25 18.1 132.9 -3.0 -26.6 148 27 13 42 00 13 47 00 =0307-085 00 17 26 18.6 134.1 -2.9 -26.0 300 46 13 42 01 13 47 00 NGC1241 00 17 26 18.0 134.1 -2.9 -26.1 -14 46 No stop 13 50 30 --- 00 20 56 18.4 134.9 -2.9 -25.7 196 60 13 47 01 13 51 00 J0310-0823 00 21 26 19.1 135.0 -2.8 -25.6 15 60 13 51 00 13 52 00 =0307-085 00 22 27 19.2 135.3 -2.8 -25.5 60 64 13 51 01 13 52 00 NGC1241 00 22 27 18.6 135.2 -2.8 -25.5 -14 64 No stop 13 55 30 --- 00 25 57 18.9 136.1 -2.8 -25.1 196 77 13 52 01 13 55 30 J0310-0823 00 25 57 19.5 136.1 -2.8 -25.1 -15 77 No stop 13 57 00 =0307-085 00 27 27 19.7 136.5 -2.7 -24.9 75 83 13 55 31 13 57 00 NGC1241 00 27 27 19.1 136.4 -2.8 -25.0 -14 83 No stop 14 00 30 --- 00 30 58 19.5 137.2 -2.7 -24.5 196 97 13 57 01 14 01 00 J0310-0823 00 31 28 20.1 137.4 -2.7 -24.4 15 97 14 01 00 14 02 00 =0307-085 00 32 28 20.2 137.7 -2.6 -24.3 60 100 14 01 01 14 02 00 NGC1241 00 32 28 19.6 137.6 -2.7 -24.4 -14 100 No stop 14 05 30 --- 00 35 59 20.0 138.4 -2.6 -24.0 196 114 14 02 01 14 05 30 J0310-0823 00 35 59 20.6 138.5 -2.6 -23.9 -14 114 No stop 14 07 00 =0307-085 00 37 29 20.7 138.9 -2.6 -23.7 76 120 14 05 31 14 07 00 NGC1241 00 37 29 20.1 138.8 -2.6 -23.8 -14 120 No stop 14 10 30 --- 00 41 00 20.5 139.7 -2.5 -23.3 196 133 14 07 01 14 11 00 J0310-0823 00 41 30 21.1 139.8 -2.5 -23.2 16 133 14 11 00 14 12 00 =0307-085 00 42 30 21.2 140.1 -2.5 -23.1 60 137 14 11 01 14 12 00 NGC1241 00 42 30 20.6 140.0 -2.5 -23.2 -14 137 No stop 14 15 30 --- 00 46 00 20.9 140.9 -2.4 -22.7 196 151 14 12 01 14 15 30 J0310-0823 00 46 00 21.5 141.0 -2.4 -22.6 -14 151 No stop 14 17 00 =0307-085 00 47 31 21.7 141.3 -2.4 -22.5 76 157 14 15 31 Schedule for KNOCKIN (Code Kn ) Page 3 Tracing the Radio Outflows in RQ AGN from Pc- to Kpc-scales 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 2 Mar 2025 Day 61 --- 14 17 00 NGC1241 00 47 31 21.1 141.2 -2.4 -22.5 -14 157 No stop 14 20 30 --- 00 51 01 21.4 142.1 -2.4 -22.1 196 170 14 17 01 14 21 00 J0310-0823 00 51 31 22.1 142.3 -2.3 -21.9 16 170 14 21 00 14 22 00 =0307-085 00 52 32 22.2 142.6 -2.3 -21.8 60 174 14 21 01 14 22 00 NGC1241 00 52 32 21.6 142.5 -2.3 -21.9 -14 174 No stop 14 25 30 --- 00 56 02 21.9 143.3 -2.3 -21.4 196 187 14 22 01 14 25 30 J0310-0823 00 56 02 22.5 143.4 -2.3 -21.4 -14 187 No stop 14 27 00 =0307-085 00 57 32 22.6 143.8 -2.2 -21.2 76 193 14 25 31 14 27 00 NGC1241 00 57 32 22.0 143.7 -2.2 -21.2 -14 193 No stop 14 30 30 --- 01 01 03 22.3 144.6 -2.2 -20.8 196 207 14 27 01 14 31 00 J0310-0823 01 01 33 23.0 144.8 -2.2 -20.6 16 207 14 31 00 14 32 00 =0307-085 01 02 33 23.0 145.1 -2.1 -20.5 60 211 14 31 01 14 32 00 NGC1241 01 02 33 22.4 145.0 -2.2 -20.6 -14 211 No stop 14 35 30 --- 01 06 04 22.8 145.8 -2.1 -20.1 196 224 14 32 01 14 35 30 J0310-0823 01 06 04 23.3 146.0 -2.1 -20.0 -14 224 No stop 14 37 00 =0307-085 01 07 34 23.5 146.3 -2.1 -19.8 76 230 14 35 31 14 37 00 NGC1241 01 07 34 22.9 146.2 -2.1 -19.9 -14 230 No stop 14 40 30 --- 01 11 05 23.2 147.1 -2.0 -19.4 196 243 14 37 01 14 41 00 J0310-0823 01 11 35 23.8 147.4 -2.0 -19.2 16 243 14 41 00 14 42 00 =0307-085 01 12 35 23.9 147.6 -2.0 -19.1 60 247 14 41 01 14 42 00 NGC1241 01 12 35 23.3 147.5 -2.0 -19.2 -14 247 No stop 14 45 30 --- 01 16 05 23.6 148.4 -1.9 -18.7 196 261 14 42 01 14 45 30 J0310-0823 01 16 05 24.2 148.5 -1.9 -18.6 -14 261 No stop 14 47 00 =0307-085 01 17 36 24.3 148.9 -1.9 -18.4 76 267 14 45 31 14 47 00 NGC1241 01 17 36 23.7 148.8 -1.9 -18.5 -14 267 No stop 14 50 30 --- 01 21 06 24.0 149.7 -1.9 -18.0 196 280 14 47 01 14 51 00 J0310-0823 01 21 36 24.6 149.9 -1.8 -17.8 16 280 14 51 00 14 52 00 =0307-085 01 22 36 24.7 150.2 -1.8 -17.7 60 284 14 51 01 14 52 00 NGC1241 01 22 36 24.1 150.1 -1.8 -17.8 -14 284 No stop 14 55 30 --- 01 26 07 24.3 151.0 -1.8 -17.3 196 298 14 52 01 Schedule for KNOCKIN (Code Kn ) Page 4 Tracing the Radio Outflows in RQ AGN from Pc- to Kpc-scales 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 2 Mar 2025 Day 61 --- 14 55 30 J0310-0823 01 26 07 24.9 151.1 -1.8 -17.2 -14 298 No stop 14 57 00 =0307-085 01 27 37 25.0 151.5 -1.7 -17.0 76 303 14 55 31 14 57 00 NGC1241 01 27 37 24.4 151.4 -1.7 -17.1 -14 303 No stop 15 00 30 --- 01 31 08 24.7 152.3 -1.7 -16.5 196 317 14 57 01 15 01 00 J0310-0823 01 31 38 25.3 152.5 -1.7 -16.4 16 317 15 01 00 15 02 00 =0307-085 01 32 38 25.4 152.8 -1.6 -16.2 60 321 15 01 01 15 02 00 NGC1241 01 32 38 24.8 152.7 -1.7 -16.3 -14 321 No stop 15 05 30 --- 01 36 09 25.0 153.6 -1.6 -15.8 196 334 15 02 01 15 05 30 J0310-0823 01 36 09 25.6 153.7 -1.6 -15.7 -14 334 No stop 15 07 00 =0307-085 01 37 39 25.7 154.1 -1.6 -15.5 76 340 15 05 31 15 07 00 NGC1241 01 37 39 25.1 154.0 -1.6 -15.6 -14 340 No stop 15 10 30 --- 01 41 09 25.4 154.9 -1.5 -15.0 196 354 15 07 01 15 11 00 J0310-0823 01 41 40 26.0 155.2 -1.5 -14.9 16 354 15 11 00 15 12 00 =0307-085 01 42 40 26.1 155.5 -1.5 -14.7 60 357 15 11 01 15 12 00 NGC1241 01 42 40 25.5 155.3 -1.5 -14.8 -14 357 No stop 15 15 30 --- 01 46 10 25.7 156.2 -1.4 -14.3 196 371 15 12 01 15 15 30 J0310-0823 01 46 10 26.3 156.4 -1.4 -14.2 -14 371 No stop 15 17 00 =0307-085 01 47 41 26.4 156.8 -1.4 -13.9 76 377 15 15 31 15 17 00 NGC1241 01 47 41 25.8 156.6 -1.4 -14.1 -14 377 No stop 15 20 30 --- 01 51 11 26.0 157.6 -1.4 -13.5 196 390 15 17 01 15 21 00 J0310-0823 01 51 41 26.6 157.9 -1.3 -13.3 16 390 15 21 00 15 22 00 =0307-085 01 52 41 26.7 158.2 -1.3 -13.1 60 394 15 21 01 15 22 00 NGC1241 01 52 41 26.1 158.0 -1.3 -13.3 -14 394 No stop 15 25 30 --- 01 56 12 26.3 158.9 -1.3 -12.7 196 408 15 22 01 15 25 30 J0310-0823 01 56 12 26.8 159.1 -1.3 -12.6 -14 408 No stop 15 27 00 =0307-085 01 57 42 26.9 159.5 -1.2 -12.4 76 414 15 25 31 15 27 00 NGC1241 01 57 42 26.3 159.3 -1.2 -12.5 -14 414 No stop 15 30 30 --- 02 01 13 26.5 160.3 -1.2 -11.9 196 427 15 27 01 15 31 00 J0310-0823 02 01 43 27.1 160.6 -1.2 -11.7 16 427 15 31 00 15 32 00 =0307-085 02 02 43 27.2 160.9 -1.1 -11.6 60 431 15 31 01 Schedule for KNOCKIN (Code Kn ) Page 5 Tracing the Radio Outflows in RQ AGN from Pc- to Kpc-scales 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 2 Mar 2025 Day 61 --- 15 32 00 NGC1241 02 02 43 26.6 160.7 -1.2 -11.7 -14 431 No stop 15 35 30 --- 02 06 14 26.8 161.6 -1.1 -11.1 196 444 15 32 01 15 35 30 J0310-0823 02 06 14 27.4 161.8 -1.1 -11.0 -14 444 No stop 15 37 00 =0307-085 02 07 44 27.4 162.2 -1.1 -10.7 76 450 15 35 31 15 37 00 NGC1241 02 07 44 26.8 162.0 -1.1 -10.9 -14 450 No stop 15 40 30 --- 02 11 14 27.0 163.0 -1.0 -10.3 196 464 15 37 01 15 41 00 J0310-0823 02 11 44 27.6 163.3 -1.0 -10.1 16 464 15 41 00 15 42 00 =0307-085 02 12 45 27.6 163.6 -1.0 -9.9 60 468 15 41 01 15 42 00 NGC1241 02 12 45 27.1 163.4 -1.0 -10.1 -14 468 No stop 15 45 30 --- 02 16 15 27.2 164.3 -0.9 -9.5 196 481 15 42 01 15 45 30 J0310-0823 02 16 15 27.8 164.6 -0.9 -9.4 -14 481 No stop 15 47 00 =0307-085 02 17 45 27.9 165.0 -0.9 -9.1 76 487 15 45 31 15 47 00 NGC1241 02 17 45 27.3 164.8 -0.9 -9.3 -14 487 No stop 15 50 30 --- 02 21 16 27.4 165.7 -0.9 -8.7 196 500 15 47 01 15 51 00 J0310-0823 02 21 46 28.0 166.1 -0.8 -8.4 16 500 15 51 00 15 52 00 =0307-085 02 22 46 28.0 166.4 -0.8 -8.3 60 504 15 51 01 15 52 00 NGC1241 02 22 46 27.5 166.1 -0.8 -8.4 -14 504 No stop 15 55 30 --- 02 26 17 27.6 167.1 -0.8 -7.8 196 518 15 52 01 15 55 30 J0310-0823 02 26 17 28.2 167.4 -0.7 -7.7 -14 518 No stop 15 57 00 =0307-085 02 27 47 28.2 167.8 -0.7 -7.4 76 524 15 55 31 15 57 00 NGC1241 02 27 47 27.6 167.5 -0.7 -7.6 -14 524 No stop 16 00 30 --- 02 31 18 27.8 168.5 -0.7 -7.0 196 537 15 57 01 16 01 00 J0310-0823 02 31 48 28.3 168.9 -0.7 -6.8 16 537 16 01 00 16 02 00 =0307-085 02 32 48 28.4 169.2 -0.6 -6.6 60 541 16 01 01 16 02 00 NGC1241 02 32 48 27.8 168.9 -0.7 -6.8 -14 541 No stop 16 05 30 --- 02 36 19 27.9 169.9 -0.6 -6.2 196 555 16 02 01 16 05 30 J0310-0823 02 36 19 28.5 170.2 -0.6 -6.0 -14 555 No stop 16 07 00 =0307-085 02 37 49 28.5 170.6 -0.6 -5.7 76 560 16 05 31 16 07 00 NGC1241 02 37 49 27.9 170.3 -0.6 -5.9 -14 560 No stop 16 10 30 --- 02 41 19 28.0 171.3 -0.5 -5.3 196 574 16 07 01 Schedule for KNOCKIN (Code Kn ) Page 6 Tracing the Radio Outflows in RQ AGN from Pc- to Kpc-scales 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 2 Mar 2025 Day 61 --- 16 11 00 J0310-0823 02 41 49 28.6 171.7 -0.5 -5.1 16 574 16 11 00 16 12 00 =0307-085 02 42 50 28.6 172.0 -0.5 -4.9 60 578 16 11 01 16 12 00 NGC1241 02 42 50 28.1 171.7 -0.5 -5.1 -14 578 No stop 16 15 30 --- 02 46 20 28.1 172.7 -0.4 -4.5 196 591 16 12 01 16 15 30 J0310-0823 02 46 20 28.7 173.0 -0.4 -4.3 -14 591 No stop 16 17 00 =0307-085 02 47 50 28.7 173.4 -0.4 -4.0 76 597 16 15 31 16 17 00 NGC1241 02 47 50 28.2 173.1 -0.4 -4.2 -14 597 No stop 16 20 30 --- 02 51 21 28.2 174.1 -0.4 -3.6 196 611 16 17 01 16 21 00 J0310-0823 02 51 51 28.8 174.5 -0.3 -3.3 16 611 16 21 00 16 22 00 =0307-085 02 52 51 28.8 174.8 -0.3 -3.2 60 614 16 21 01 16 22 00 NGC1241 02 52 51 28.2 174.5 -0.3 -3.4 -14 614 No stop 16 25 30 --- 02 56 22 28.3 175.5 -0.3 -2.8 196 628 16 22 01 16 25 30 J0310-0823 02 56 22 28.8 175.8 -0.2 -2.6 -14 628 No stop 16 27 00 =0307-085 02 57 52 28.8 176.2 -0.2 -2.3 76 634 16 25 31 16 27 00 NGC1241 02 57 52 28.3 175.9 -0.2 -2.5 -14 634 No stop 16 30 30 --- 03 01 23 28.3 176.9 -0.2 -1.9 196 647 16 27 01 16 31 00 J0310-0823 03 01 53 28.9 177.4 -0.2 -1.6 16 647 16 31 00 16 32 00 =0307-085 03 02 53 28.9 177.6 -0.1 -1.4 60 651 16 31 01 16 32 00 NGC1241 03 02 53 28.3 177.3 -0.2 -1.6 -14 651 No stop 16 35 30 --- 03 06 23 28.4 178.3 -0.1 -1.0 196 665 16 32 01 16 35 30 J0310-0823 03 06 23 28.9 178.6 -0.1 -0.8 -14 665 No stop 16 37 00 =0307-085 03 07 54 28.9 179.0 -0.1 -0.6 76 671 16 35 31 16 37 00 NGC1241 03 07 54 28.4 178.7 -0.1 -0.8 -14 671 No stop 16 40 30 --- 03 11 24 28.4 179.7 -0.0 -0.2 196 684 16 37 01 16 41 00 J0310-0823 03 11 54 28.9 180.2 0.0 0.1 17 684 16 41 00 16 42 00 =0307-085 03 12 55 28.9 180.5 0.0 0.3 60 688 16 41 01 16 42 00 NGC1241 03 12 55 28.4 180.1 0.0 0.1 -13 688 No stop 16 45 30 --- 03 16 25 28.4 181.1 0.1 0.7 197 701 16 42 01 16 45 30 J0310-0823 03 16 25 28.9 181.5 0.1 0.9 -13 701 No stop 16 47 00 =0307-085 03 17 55 28.9 181.9 0.1 1.2 77 707 16 45 31 Schedule for KNOCKIN (Code Kn ) Page 7 Tracing the Radio Outflows in RQ AGN from Pc- to Kpc-scales 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 2 Mar 2025 Day 61 --- 16 47 00 NGC1241 03 17 55 28.4 181.5 0.1 0.9 -13 707 No stop 16 51 00 --- 03 21 56 28.3 182.7 0.2 1.6 227 723 16 47 01 16 51 00 J0310-0823 03 21 56 28.9 183.0 0.2 1.8 -13 723 No stop 16 53 00 =0307-085 03 23 56 28.8 183.6 0.2 2.2 107 730 16 51 01 16 55 00 3C84 03 25 57 78.8 184.3 0.1 3.5 -53 730 16 55 00 17 00 00 --- 03 30 57 78.7 189.1 0.2 7.3 247 750 16 55 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess125.L1024 --- 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: 12 Station: KNOCKIN 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= 2272.00 2272.00 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: 10 Setup file default. Used with PCAL = off LO sum= 1626.49 1626.49 BBC fr= 645.51 645.51 Bandwd= 64.00 64.00 Matching frequency sets: 10 11 12 13 14 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) * NGC1241 03 08 48.674588 * 03 11 14.610000 03 12 27.755381 0.00 -09 06 35.71543 *-08 55 18.70000 -08 49 43.89682 0.00 From catalog imbedded in main SCHED input file. 0307-085 03 07 35.614122 * 03 10 02.049331 03 11 15.438452 0.21 * J0310-0823 -08 35 00.21166 *-08 23 39.29548 -08 18 02.39908 0.41 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 86 observations. * 3C84 03 16 29.567265 * 03 19 48.160096 03 21 27.593753 1.50 J0319+4130 41 19 51.91692 * 41 30 42.10404 41 36 19.13310 2.86 0316+413 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc J0319+41 GSFC 2016a X/S astro solution, 10291 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 NGC1241 sess125.L1024 1 2 3 4 5 7 8 9 10 2.167 141.978 J0310-0823 sess125.L1024 1 2 3 4 5 7 8 9 10 0.867 51.495 3C84 sess125.L1024 1 2 3 4 5 6 7 8 9 10 0.200 15.001 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) NGC1241 63.8 J0310-0823 63.5 3C84 77.7 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