COVER INFORMATION Station: VLBA_NL (Code Nl ) 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_NL (Code Nl ) 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 00 13 29 55.7 74.5 -3.1 -73.6 0 1 1 0 16 08 00 00 17 30 56.4 74.9 -3.0 -74.0 240 F 1 1333 16 08 00 J0237+2848 00 17 30 58.9 103.3 -2.3 -55.9 -28 1 1 1333 16 30 00 = 00 39 34 62.8 109.0 -2.0 -53.6 1291 F 1 8666 16 34 00 3C84 00 43 34 61.1 77.3 -2.6 -76.2 208 1 1 8666 16 38 00 00 47 35 61.8 77.7 -2.5 -76.6 240 F 1 10000 16 38 00 J0237+2848 00 47 35 64.2 111.4 -1.8 -52.4 -32 1 1 10000 17 00 00 = 01 09 39 67.9 119.0 -1.5 -48.1 1287 F 1 17333 17 04 00 3C84 01 13 39 66.6 80.1 -2.1 -78.7 204 1 2 17333 17 08 00 01 17 40 67.3 80.4 -2.0 -79.1 240 R 1 16000 17 08 00 J0237+2848 01 17 40 69.2 122.3 -1.3 -46.0 -37 1 2 16000 17 30 00 = 01 39 43 72.5 133.3 -1.0 -38.3 1282 R 1 8666 17 34 00 3C84 01 43 44 72.2 82.8 -1.6 -81.1 196 1 2 8666 17 38 00 01 47 45 72.9 83.2 -1.5 -81.4 240 R 1 7333 17 38 00 J0237+2848 01 47 45 73.5 138.1 -0.8 -34.6 -46 1 2 7333 18 00 00 = 02 09 48 75.8 154.3 -0.5 -21.7 1273 R 1 0 18 04 00 3C84 02 13 49 77.7 85.8 -1.1 -83.2 184 1 1 0 18 08 00 02 17 50 78.5 86.2 -1.0 -83.5 240 F 2 1333 18 08 00 J0237+2848 02 17 50 76.4 161.2 -0.3 -15.9 -60 1 1 1333 18 30 00 = 02 39 53 77.0 182.2 0.0 1.9 1259 F 2 8666 18 34 00 3C84 02 43 54 83.3 89.4 -0.6 -84.7 168 1 1 8666 18 38 00 02 47 55 84.1 90.0 -0.5 -84.7 240 F 2 10000 18 38 00 J0237+2848 02 47 55 76.8 189.9 0.2 8.4 -76 1 1 10000 19 00 00 = 03 09 58 75.4 209.4 0.5 24.7 1243 F 2 17333 Schedule for VLBA_NL (Code Nl ) 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 03 13 59 88.9 104.4 -0.1 -74.7 159 1 2 17333 19 08 00 03 18 00 89.6 133.4 0.0 -46.3 240 R 2 16000 19 08 00 J0237+2848 03 18 00 74.6 215.4 0.7 29.6 -64 1 2 16000 19 30 00 = 03 40 03 71.9 229.2 1.0 40.1 1255 R 2 8666 19 34 00 3C84 03 44 04 85.4 268.6 0.4 84.5 202 1 2 8666 19 38 00 03 48 05 84.7 269.4 0.5 84.7 240 R 2 7333 19 38 00 J0237+2848 03 48 05 70.7 233.3 1.2 43.0 -37 1 2 7333 20 00 00 = 04 10 08 67.2 242.7 1.5 49.1 1282 R 2 0 20 04 00 3C84 04 14 09 79.8 273.0 0.9 83.9 204 1 3 0 20 08 00 04 18 09 79.1 273.5 1.0 83.7 240 F 1 1333 20 08 00 J0237+2848 04 18 09 65.9 245.5 1.7 50.8 -36 1 3 1333 20 30 00 = 04 40 13 62.0 252.2 2.0 54.1 1283 F 1 8666 20 34 00 3C84 04 44 14 74.2 276.1 1.4 81.9 205 1 3 8666 20 38 00 04 48 14 73.5 276.5 1.5 81.6 240 F 1 10000 20 38 00 J0237+2848 04 48 14 60.6 254.3 2.2 55.0 -35 1 3 10000 21 00 00 = 05 10 18 56.6 259.5 2.5 56.8 1284 F 1 17333 21 04 00 3C84 05 14 19 68.7 278.9 1.9 79.6 205 1 4 17333 21 08 00 05 18 19 67.9 279.3 2.0 79.3 240 R 1 16000 21 08 00 J0237+2848 05 18 19 55.1 261.2 2.7 57.3 -35 1 4 16000 21 30 00 = 05 40 23 51.0 265.6 3.0 58.0 1284 R 1 8666 21 34 00 3C84 05 44 24 63.1 281.7 2.4 77.2 205 1 4 8666 21 38 00 05 48 24 62.4 282.1 2.5 76.8 240 R 1 7333 21 38 00 J0237+2848 05 48 24 49.5 267.0 3.2 58.2 -35 1 4 7333 22 00 00 = 06 10 28 45.4 270.8 3.5 58.3 1284 R 1 0 22 04 00 3C84 06 14 28 57.7 284.5 2.9 74.6 205 1 3 0 22 08 00 06 18 29 56.9 284.8 3.0 74.3 240 F 2 1333 22 08 00 J0237+2848 06 18 29 43.9 272.1 3.7 58.3 -36 1 3 1333 22 30 00 = 06 40 33 39.8 275.5 4.0 57.9 1283 F 2 8666 22 34 00 3C84 06 44 33 52.3 287.3 3.4 71.9 205 1 3 8666 22 38 00 06 48 34 51.6 287.7 3.5 71.6 240 F 2 10000 Schedule for VLBA_NL (Code Nl ) 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 06 48 34 38.3 276.7 4.2 57.7 -36 1 3 10000 23 00 00 = 07 10 38 34.3 279.9 4.5 56.9 1283 F 2 17333 23 04 00 3C84 07 14 38 47.0 290.2 3.9 69.2 204 1 4 17333 23 08 00 07 18 39 46.3 290.6 4.0 68.8 240 R 2 16000 23 08 00 J0237+2848 07 18 39 32.8 281.1 4.7 56.6 -36 1 4 16000 23 30 00 = 07 40 43 28.8 284.2 5.1 55.6 1283 R 2 8666 23 34 00 3C84 07 44 43 41.8 293.2 4.4 66.3 204 1 4 8666 23 38 00 07 48 44 41.1 293.6 4.5 65.9 240 R 2 7333 23 38 00 J0237+2848 07 48 44 27.3 285.4 5.2 55.1 -37 1 4 7333 23 59 59 = 08 10 48 23.4 288.5 5.6 53.8 1281 R 2 0 --- Fri 26 Apr 1996 Day 117 --- 00 04 00 3C84 08 14 48 36.7 296.3 4.9 63.2 203 1 5 0 00 08 00 08 18 49 36.0 296.7 5.0 62.8 240 F 1 1333 00 08 00 J0237+2848 08 18 49 22.0 289.6 5.7 53.3 -38 1 5 1333 00 30 00 = 08 40 52 18.2 292.7 6.1 51.7 1281 F 1 8666 00 34 00 3C84 08 44 53 31.7 299.5 5.4 60.1 202 1 5 8666 00 38 00 08 48 54 31.1 299.9 5.5 59.6 240 F 1 10000 00 38 00 J0237+2848 08 48 54 16.8 293.9 6.2 51.1 -38 1 5 10000 01 00 00 = 09 10 57 13.1 297.1 6.6 49.2 1281 F 1 17333 01 04 00 3C84 09 14 58 26.9 302.9 5.9 56.7 202 1 6 17333 01 08 00 09 18 59 26.3 303.3 6.0 56.3 240 R 1 16000 01 08 00 J0237+2848 09 18 59 11.7 298.3 6.7 48.5 -39 1 6 16000 01 30 00 = 09 41 02 8.2 301.6 7.1 46.5 1280 R 1 8666 01 34 00 3C84 09 45 03 22.3 306.4 6.4 53.2 201 1 6 8666 01 38 00 09 49 04 21.7 306.9 6.5 52.8 240 R 1 7333 01 38 00 J0237+2848 09 49 04 6.9 302.8 7.2 45.7 -39 1 6 7333 02 00 00 = 10 11 07 3.5 306.3 7.6 43.3 1280 R 1 0 02 04 00 3C84 10 15 08 17.9 310.2 6.9 49.5 201 1 5 0 02 08 00 10 19 09 17.3 310.7 7.0 49.0 240 F 2 1333 Schedule for VLBA_NL (Code Nl ) 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 10 19 09 2.3 307.6 7.7 42.4 -39 1 5 1333 02 30 00 = 10 41 12 -0.8 311.2 8.1 D 39.8 1280 F 2 8666 02 34 00 3C84 10 45 13 13.7 314.1 7.4 45.6 207 1 5 8666 02 38 00 10 49 13 13.2 314.7 7.5 45.1 240 F 2 10000 02 38 00 J0237+2848 10 49 13 -2.0 312.6 8.2 D 38.8 -31 1 5 10000 03 00 00 = 11 11 17 -4.9 316.4 8.6 D 35.9 1288 F 2 17333 03 04 00 3C84 11 15 18 9.9 318.3 7.9 41.5 214 1 6 17333 03 08 00 11 19 18 9.4 318.9 8.0 40.9 240 R 2 16000 03 08 00 J0237+2848 11 19 18 -5.9 317.9 8.7 D 34.8 -24 1 6 16000 03 30 00 = 11 41 22 -8.6 321.9 9.1 D 31.6 1295 R 2 8666 03 34 00 4C39.25 11 45 23 63.7 275.7 2.3 72.9 107 1 6 8666 04 00 00 12 11 27 58.8 278.9 2.7 71.6 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