COVER INFORMATION Station: VLBA_HN (Code Hn ) Experiment: Comet Hyakutake Occultation Exp. Code: bb066 Schedule Version: 2.00 Processed by SCHED version: 96Apr13 PI: Butler Address: Cover information incomplete or missing. Phone: EMAIL: bbutler@nrao.edu (internet) Fax: Telex: Phone during observation: Observing mode: Correlator: Notes: Schedule for VLBA_HN (Code Hn ) Page 2 Comet Hyakutake Occultation UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. ------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes Stop UT LST EL AZ HA UP ParA Dwell (see above) ------------------------------------------------------------------------------- --- Thu 25 Apr 1996 Day 116 --- Next scan frequencies: 1611.81 1611.81 1664.97 1664.97 1666.93 1666.93 1720.09 1720.09 Next BBC frequencies: 788.19 788.19 735.03 735.03 733.07 733.07 679.91 679.91 Next scan bandwidths: 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 16 04 00 3C84 01 31 50 70.1 84.9 -1.8 -76.8 0 1 1 0 16 08 00 01 35 51 70.8 85.4 -1.7 -77.0 240 F 1 1333 16 08 00 J0237+2848 01 35 51 71.2 133.7 -1.0 -37.2 -42 1 1 1333 16 30 00 = 01 57 55 73.7 147.3 -0.7 -26.8 1277 F 1 8666 16 34 00 3C84 02 01 55 75.6 89.1 -1.3 -77.8 191 1 1 8666 16 38 00 02 05 56 76.3 89.8 -1.2 -77.8 240 F 1 10000 16 38 00 J0237+2848 02 05 56 74.5 153.1 -0.5 -22.2 -52 1 1 10000 17 00 00 = 02 28 00 75.7 171.4 -0.2 -7.2 1267 F 1 17333 17 04 00 3C84 02 32 00 81.1 95.2 -0.8 -76.8 179 1 2 17333 17 08 00 02 36 01 81.8 96.4 -0.7 -76.3 240 R 1 16000 17 08 00 J0237+2848 02 36 01 75.8 178.5 0.0 -1.2 -64 1 2 16000 17 30 00 = 02 58 04 75.3 197.9 0.3 14.9 1255 R 1 8666 17 34 00 3C84 03 02 05 86.5 112.5 -0.3 -64.6 173 1 2 8666 17 38 00 03 06 06 87.1 118.9 -0.2 -58.9 240 R 1 7333 17 38 00 J0237+2848 03 06 06 74.7 204.3 0.5 20.1 -66 1 2 7333 18 00 00 = 03 28 09 72.6 219.8 0.8 32.3 1253 R 1 0 18 04 00 3C84 03 32 10 87.3 239.5 0.2 57.4 200 1 1 0 18 08 00 03 36 11 86.6 246.4 0.3 63.6 240 F 2 1333 18 08 00 J0237+2848 03 36 11 71.6 224.5 1.0 35.9 -40 1 1 1333 18 30 00 = 03 58 14 68.5 235.4 1.3 43.5 1279 F 2 8666 18 34 00 3C84 04 02 15 82.0 263.3 0.7 76.1 203 1 1 8666 18 38 00 04 06 16 81.2 264.5 0.8 76.7 240 F 2 10000 18 38 00 J0237+2848 04 06 16 67.3 238.8 1.5 45.6 -37 1 1 10000 19 00 00 = 04 28 19 63.7 246.6 1.8 50.1 1282 F 2 17333 Schedule for VLBA_HN (Code Hn ) Page 3 Comet Hyakutake Occultation UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. ------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes Stop UT LST EL AZ HA UP ParA Dwell (see above) ------------------------------------------------------------------------------- --- Thu 25 Apr 1996 Day 116 --- 19 04 00 3C84 04 32 20 76.5 270.1 1.2 77.8 204 1 2 17333 19 08 00 04 36 21 75.7 270.8 1.3 77.8 240 R 2 16000 19 08 00 J0237+2848 04 36 21 62.3 249.0 2.0 51.3 -36 1 2 16000 19 30 00 = 04 58 24 58.5 255.0 2.3 53.8 1283 R 2 8666 19 34 00 3C84 05 02 25 71.0 274.5 1.7 77.0 204 1 2 8666 19 38 00 05 06 25 70.2 275.0 1.8 76.9 240 R 2 7333 19 38 00 J0237+2848 05 06 25 57.0 256.9 2.5 54.5 -36 1 2 7333 20 00 00 = 05 28 29 53.1 261.8 2.8 55.8 1283 R 2 0 20 04 00 3C84 05 32 30 65.5 278.1 2.2 75.4 205 1 3 0 20 08 00 05 36 30 64.8 278.5 2.3 75.2 240 F 1 1333 20 08 00 J0237+2848 05 36 30 51.6 263.4 3.0 56.1 -36 1 3 1333 20 30 00 = 05 58 34 47.6 267.5 3.3 56.6 1283 F 1 8666 20 34 00 3C84 06 02 35 60.1 281.4 2.7 73.4 205 1 3 8666 20 38 00 06 06 35 59.4 281.8 2.8 73.1 240 F 1 10000 20 38 00 J0237+2848 06 06 35 46.1 268.9 3.5 56.6 -36 1 3 10000 21 00 00 = 06 28 39 42.1 272.6 3.9 56.6 1283 F 1 17333 21 04 00 3C84 06 32 40 54.7 284.6 3.2 71.1 204 1 4 17333 21 08 00 06 36 40 54.0 285.0 3.3 70.8 240 R 1 16000 21 08 00 J0237+2848 06 36 40 40.6 273.9 4.0 56.5 -36 1 4 16000 21 30 00 = 06 58 44 36.6 277.4 4.4 55.9 1283 R 1 8666 21 34 00 3C84 07 02 45 49.4 287.8 3.7 68.6 204 1 4 8666 21 38 00 07 06 45 48.7 288.2 3.8 68.2 240 R 1 7333 21 38 00 J0237+2848 07 06 45 35.2 278.6 4.5 55.7 -37 1 4 7333 22 00 00 = 07 28 49 31.2 281.9 4.9 54.8 1282 R 1 0 22 04 00 3C84 07 32 49 44.2 290.9 4.2 65.9 203 1 3 0 22 08 00 07 36 50 43.5 291.4 4.3 65.6 240 F 2 1333 22 08 00 J0237+2848 07 36 50 29.8 283.0 5.0 54.5 -37 1 3 1333 22 30 00 = 07 58 54 25.8 286.3 5.4 53.3 1282 F 2 8666 22 34 00 3C84 08 02 54 39.1 294.2 4.7 63.1 203 1 3 8666 22 38 00 08 06 55 38.5 294.6 4.8 62.7 240 F 2 10000 Schedule for VLBA_HN (Code Hn ) Page 4 Comet Hyakutake Occultation UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. ------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes Stop UT LST EL AZ HA UP ParA Dwell (see above) ------------------------------------------------------------------------------- --- Thu 25 Apr 1996 Day 116 --- 22 38 00 J0237+2848 08 06 55 24.4 287.4 5.5 52.8 -38 1 3 10000 23 00 00 = 08 28 59 20.6 290.6 5.9 51.4 1281 F 2 17333 23 04 00 3C84 08 32 59 34.2 297.5 5.2 60.1 202 1 4 17333 23 08 00 08 37 00 33.5 298.0 5.3 59.7 240 R 2 16000 23 08 00 J0237+2848 08 37 00 19.3 291.8 6.0 50.9 -38 1 4 16000 23 30 00 = 08 59 04 15.6 295.1 6.4 49.2 1281 R 2 8666 23 34 00 3C84 09 03 04 29.4 301.0 5.7 56.9 202 1 4 8666 23 38 00 09 07 05 28.8 301.4 5.8 56.5 240 R 2 7333 23 38 00 J0237+2848 09 07 05 14.2 296.3 6.5 48.5 -39 1 4 7333 23 59 59 = 09 29 09 10.7 299.6 6.9 46.6 1279 R 2 0 --- Fri 26 Apr 1996 Day 117 --- 00 04 00 3C84 09 33 09 24.8 304.6 6.2 53.6 201 1 5 0 00 08 00 09 37 10 24.2 305.1 6.3 53.1 240 F 1 1333 00 08 00 J0237+2848 09 37 10 9.4 300.8 7.0 45.8 -39 1 5 1333 00 30 00 = 09 59 13 6.0 304.3 7.4 43.6 1280 F 1 8666 00 34 00 3C84 10 03 14 20.3 308.3 6.7 50.1 201 1 5 8666 00 38 00 10 07 15 19.8 308.9 6.8 49.6 240 F 1 10000 00 38 00 J0237+2848 10 07 15 4.8 305.6 7.5 H 42.8 -39 1 5 10000 01 00 00 = 10 29 18 1.6 309.2 7.9 D 40.3 1280 F 1 17333 01 04 00 3C84 10 33 19 16.1 312.3 7.2 46.3 202 1 6 17333 01 08 00 10 37 20 15.6 312.8 7.3 45.8 240 R 1 16000 01 08 00 J0237+2848 10 37 20 0.5 310.6 8.0 D 39.4 -36 1 6 16000 01 30 00 = 10 59 23 -2.5 314.4 8.4 D 36.7 1283 R 1 8666 01 34 00 3C84 11 03 24 12.2 316.5 7.7 42.3 210 1 6 8666 01 38 00 11 07 25 11.7 317.0 7.8 41.8 240 R 1 7333 01 38 00 J0237+2848 11 07 25 -3.6 315.8 8.5 D 35.6 -28 1 6 7333 02 00 00 = 11 29 28 -6.3 319.8 8.9 D 32.6 1291 R 1 0 02 04 00 3C84 11 33 29 8.6 320.8 8.2 38.1 217 1 5 0 02 08 00 11 37 30 8.1 321.4 8.3 37.6 240 F 2 1333 Schedule for VLBA_HN (Code Hn ) Page 5 Comet Hyakutake Occultation UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. ------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes Stop UT LST EL AZ HA UP ParA Dwell (see above) ------------------------------------------------------------------------------- --- Fri 26 Apr 1996 Day 117 --- 02 08 00 J0237+2848 11 37 30 -7.2 321.3 9.0 D 31.5 -21 1 5 1333 02 30 00 = 11 59 33 -9.6 325.5 9.4 D 28.2 1298 F 2 8666 02 34 00 3C84 12 03 34 5.3 325.4 8.7 33.7 223 1 5 8666 02 38 00 12 07 34 4.8 326.0 8.8 H 33.1 240 F 2 10000 02 38 00 J0237+2848 12 07 34 -10.4 327.1 9.5 D 27.0 -15 1 5 10000 03 00 00 = 12 29 38 -12.5 331.6 9.9 D 23.4 1304 F 2 17333 03 04 00 3C84 12 33 39 2.3 330.2 9.2 H 29.0 229 1 6 17333 03 08 00 12 37 39 2.0 330.9 9.3 D 28.4 240 R 2 16000 03 08 00 J0237+2848 12 37 39 -13.2 333.3 10.0 D 22.1 -11 1 6 16000 03 30 00 = 12 59 43 -14.8 337.9 10.4 D 18.3 1308 R 2 8666 03 34 00 4C39.25 13 03 44 49.6 283.6 3.6 66.4 135 1 6 8666 04 00 00 13 29 48 45.0 286.7 4.0 64.6 1560 R 2 0 SOURCE LIST -- Comet Hyakutake Occultation Catalog positions marked with *. Position of date is for stop time of first scan. Names used in schedule marked with *. Short names used in VLA and SNAP files marked with +. Source Source position (RA/Dec) (B1950) (J2000) (Date) * J0237+2848 02 34 55.58928 * 02 37 52.40567 02 37 38.42192 28 35 11.4251 * 28 48 08.9905 28 47 02.1890 * 3C84 03 16 29.56746 * 03 19 48.16010 03 19 32.47296 41 19 51.9329 * 41 30 42.1060 41 29 46.7275 * 4C39.25 09 23 55.31912 * 09 27 03.01392 09 26 49.55049 39 15 23.5494 * 39 02 20.8525 39 03 18.7532