coverlet /

  BH126 SUMMARY (as of 11 Jan 2005):

We request within 1 week to 10 days coordination with planned Chandra
X-ray Observatory observations at 4 epochs:

1. 2Jan05 (VLBA 90cm, 90/50cm, L band for 8 hrs/run = BH126 A, B, C).
Coordinated also with VLA observation AH862 on 31Dec04.

2. Anytime after 20Apr05 until the end of B array, 23May (VLBA 90cm,
90/50cm, L band for 8 hrs/run = BH126 D, E, F).  Coordinated also with VLA
observation AH862.

3. 1Jun05 (VLBA L-band for 8 hrs = BH126 G).

4. 6Aug05 (VLBA L band for 8 hrs = BH126 H).

 --------------------------------------------------------------------


 Here is the official dynamic scheduling sheet:
 ================================================================
   Preferred Dynamic Contraints.  Alter [defaults] as desired.
 ================================================================
 Equipment constraints:
    Stations.  Below each station code, the "o" indicates an
       [optional] station that is to be used if it is available.
       Change "o" to "r" if the station is required or change
       "o" to "n" if the station is not to be used.
           SC  HN  NL  FD  LA  PT  KP  OV  BR  MK
           o   o   o   o   o   o   o   o   o   r
       Minimum number of stations [7]:
       May we swap PT for a single VLA antenna? [yes]
          Consult http://www.aoc.nrao.edu/~gtaylor/y1gotcha.html
          to decide.  If you adopt the default, then both PT and
          VLA1 must be in the stations list in the keyin file.
    Bands and polarizations.  Below each band code, insert "R"
       if the righthand polarization is to be used, "L" if the
       lefthand polarization is to be used, "d" if dual
       polarizations are to be used, or "o" if the band is in
       your setups but scheduling should not be constrained by
       its availability.
           90cm  50cm  20cm  13cm  6cm  4cm  2cm  1cm  7mm  3mm
            d
 Weather constraints:
    [appropriate for bands marked "L", "R", or "d" above
     and for at least the minimum number of stations]
 Date constraints:
    Preferred date(s), usually a series start [none]:
	Anytime after 20Apr05 until the end of B array, 23May
    Excluded dates plus reason [none]:
      Too close to Sun.
    Preferred interval between segments in days [none]:

    Special conditions (e.g., a series with different
       spacings in time) [See the comments at the top.]:

endcover /

! ================================================================

! ==========================================================
! =================  Cover Information  ====================
! ==========================================================
!
 version = 1
 expt    = 'Monitoring Knot HST-1 in M87 Jet'
 expcode = BH126D
 piname   = 'D.E. Harris'
 address1 = 'MS-3, CfA, 60 Garden St'
 address2 = 'Cambridge, MA 02138'
 address3 = 'U.S.A. '
 phone    = '617 495 7148'
 obsphone = '617 495 7148'
 email    = harris@cfa.harvard.edu
 fax      = '617 495 7356'
 obsmode  = '90cm 128-4-2 '
 obstype  = VLBA
 note1    = ' '

! ==========================================================
! ==============  Correlator Information  ==================
! ==========================================================

correl   = Socorro
coravg   = 1.05
corchan  = 64
cornant  = 10
corpol   = on
corwtfn  = uniform
corsrcs  = standard
cortape  = DAT
corship1 = 'Teddy Cheung'
corship2 = 'MIT Center for Space Research, NE80-6083'
corship3 = '77 Massachusetts Ave'
corship4 = 'Cambridge, MA 02139'
cornote1 = '(617)258-5928 no charge for tapes, Teddy is a Jansky'

! ==========================================================
! ==================  Program control  =====================
! ==========================================================
 overwrit
 autotape = 2
 minpause = 10
 prestart = 20
 sumitem  = el1, az1, tape1, tape2

! ==========================================================
! =======================  Setup file  =====================
! ==========================================================
! Use Craig's existing set-up.
!
setini = bw051.set /
  band   = '90cm'   !  Observing band.  SCHED had frequency.
  nchan  = 4        !  Number of baseband channels.
  bbfilt = 8.0      !  Bandwidth per baseband channel (MHz)
  pol    = dual     !  RCP, LCP, or DUAL.
  bits   = 2        !  Bits per sample
!  Move the frequency up 2 MHz from the default to help VLA
!  bandpass shape.
  freqref = 324.49, 324.49, 332.49, 332.49
  /          !   Note:  Total bit rate = 2*bbfilt*nchan*bits
endset /
! ==========================================================
! =====================  Optimization  =====================
! ==========================================================

optmode = 'scans'
opminant = 5
opminel = 12

! ==========================================================
! =================  Initial Scan Information  =============
! ==========================================================

day      = 60197
!
lst      = vlba_pt
start    = 08:30:00    !  Should be 06:30:00 or later.
opdur    = 08:00:00    !  Uses optimization so can set overall
                       !  duration (like pointing schedules)
                !  Time after 18:00:00 PT LST is not useful

! ==========================================================
! ========================  The Scans  =====================
! ==========================================================
!  MK down at start.

setup = bw051.set
stations = VLBA_SC, VLBA_HN, VLBA_NL, VLBA_FD, VLBA_LA,
           VLBA_PT, VLBA_KP, VLBA_OV, VLBA_BR, VLBA_MK
!vlamode = vs

! 3C147 is a known good calibrator --- from RCW test observations.
! 1148-001 is compact and 3 Jy.  I used this in BJ007.

group 4 rep 13
source = 3C147      dwell=05:00  gap=02:00  /
source = 1148-001   dwell=05:00  gap=01:00  /
source = 3C274      dwell=30:00  /
source = 3C274      dwell=30:00  /

group 4 rep 1
source = 3C147      dwell=05:00  gap=02:00  /
source = 1148-001   dwell=05:00  gap=01:00  /
source = 3C274      dwell=30:00  /