Unschedulable Visit Unschedulable Visit changed filters in visit 14 -108334686 ----- Attempting Submission 3 (Thu May 14 18:06:06 GMT 2015) ----- looks ok The Longest Period Cepheids, a bridge to the Hubble Constant An independent measurement of the Hubble Constant with 1-2% precision offers enormous leverage for resolving outstanding cosmological investigations including the the precise geometry of space, the properties of the elusive neutrinos, and the nature of dark energy. It would contribute the equivalent of nearly doubling the size of other near term cosmological surveys like DES, BOSS and Pan-STARRS. We are building a new distance ladder to double the current precision of the Hubble constant to <2% by attacking the largest unaddressed obstacle to its determination, the lack of parallaxes of long period Milky Way Cepheids. We have developed a new technique to measure relative astrometry of bright stars and their parallaxes with WFC3 using spatial scanning, improving upon the previous best relative astrometry with the HST FGS by an order of magnitude to reach distances of 1-4 kiloparsecs. A new scanning mode, serpentine spatial scan, is available in Cycle 21. It allows us to avoid saturating observations of Milky Way Cepheids with P>25 days which would otherwise be too bright. Measuring the luminosities of these Cepheids is vital to calibrating their analogues visible to HST in distant galaxies which host type Ia supernovae. With Planck CMB data already in hand, this new measurement of the Hubble constant will more than double the precision of the dark energy equation of state, may reveal a new species of neutrino, and would further HST's legacy in the measurement of the Hubble constant, a task for which it was launched. Spatial scans for parallax COSMOLOGY 6 Regular false false false false false AVAILABLE STAR CEPHEID This object was generated by the targetselector and retrieved from the SIMBAD database. J2000 J2000 STAR CEPHEID This object was generated by the targetselector and retrieved from the SIMBAD database. J2000 J2000 STAR CEPHEID This object was generated by the targetselector and retrieved from the SIMBAD database. J2000 J2000 STAR CEPHEID position offset from X Pup to get more bright ref stars J2000 J2000 STAR CEPHEID This object was generated by the targetselector and retrieved from the SIMBAD database. J2000 STAR CEPHEID This object was generated by the targetselector and retrieved from the SIMBAD database. J2000 STAR CEPHEID This object was generated by the targetselector and retrieved from the SIMBAD database. J2000 STAR CEPHEID This object was generated by the targetselector and retrieved from the SIMBAD database. J2000 STAR CEPHEID This object was generated by the targetselector and retrieved from the SIMBAD database. J2000 WFC3/UVIS Imaging No No F606W WFC3/UVIS Imaging No No F621M WFC3/UVIS Imaging No No F673N WFC3/UVIS Imaging No No F275W WFC3/UVIS Imaging No No F336W WFC3/UVIS Imaging No No F410M WFC3/UVIS Imaging No No F467M WFC3/UVIS Imaging No No F547M WFC3/UVIS Imaging No No F850LP WFC3/IR Imaging No No F160W WFC3/UVIS Imaging No No F555W WFC3/UVIS Imaging No No F814W WFC3/UVIS Imaging No No F606W WFC3/UVIS Imaging No No F621M WFC3/UVIS Imaging No No F673N WFC3/UVIS Imaging No No F275W WFC3/UVIS Imaging No No F336W WFC3/UVIS Imaging No No F410M WFC3/UVIS Imaging No No F467M WFC3/UVIS Imaging No No F547M WFC3/UVIS Imaging No No F850LP WFC3/IR Imaging No No F160W WFC3/UVIS Imaging No No F555W WFC3/UVIS Imaging No No F814W WFC3/UVIS Imaging No No F606W WFC3/UVIS Imaging No No F621M WFC3/UVIS Imaging No No F673N WFC3/UVIS Imaging No No F275W WFC3/UVIS Imaging No No F336W WFC3/UVIS Imaging No No F410M WFC3/UVIS Imaging No No F467M WFC3/UVIS Imaging No No F547M WFC3/UVIS Imaging No No F850LP WFC3/IR Imaging No No F160W WFC3/UVIS Imaging No No F555W WFC3/UVIS Imaging No No F814W WFC3/UVIS Imaging No No F606W WFC3/UVIS Imaging No No F621M WFC3/UVIS Imaging No No F673N WFC3/UVIS Imaging No No F275W WFC3/UVIS Imaging No No F336W WFC3/UVIS Imaging No No F410M WFC3/UVIS Imaging No No F467M WFC3/UVIS Imaging No No F547M WFC3/UVIS Imaging No No F850LP WFC3/IR Imaging No No F160W WFC3/UVIS Imaging No No F555W WFC3/UVIS Imaging No No F814W WFC3/UVIS Imaging No No F606W WFC3/UVIS Imaging No No F621M WFC3/UVIS Imaging No No F673N WFC3/UVIS Imaging No No F275W WFC3/UVIS Imaging No No F336W WFC3/UVIS Imaging No No F410M WFC3/UVIS Imaging No No F467M WFC3/UVIS Imaging No No F547M WFC3/UVIS Imaging No No F850LP WFC3/IR Imaging No No F160W WFC3/UVIS Imaging No No F555W WFC3/UVIS Imaging No No F814W WFC3/UVIS Imaging No No F606W WFC3/UVIS Imaging No No F621M WFC3/UVIS Imaging No No F673N WFC3/UVIS Imaging No No F275W WFC3/UVIS Imaging No No F336W WFC3/UVIS Imaging No No F410M WFC3/UVIS Imaging No No F467M WFC3/UVIS Imaging No No F547M WFC3/UVIS Imaging No No F850LP WFC3/IR Imaging No No F160W WFC3/UVIS Imaging No No F555W WFC3/UVIS Imaging No No F814W WFC3/UVIS Imaging No No F606W WFC3/UVIS Imaging No No F621M WFC3/UVIS Imaging No No F673N WFC3/UVIS Imaging No No F275W WFC3/UVIS Imaging No No F336W WFC3/UVIS Imaging No No F410M WFC3/UVIS Imaging No No F467M WFC3/UVIS Imaging No No F547M WFC3/UVIS Imaging No No F850LP WFC3/IR Imaging No No F160W WFC3/UVIS Imaging No No F555W WFC3/UVIS Imaging No No F814W The scheduling data was generated by CASM 22.2. CASM was run in Phase II mode. same guide stars, orient used in 13334, visit 09 1411197914000 113.0 (Tic-Visit :proposal-id 13686 :visit-id "09" :proposal-version -1 :trans-version "20140605" :date "15-Jul-2014 14:05:36.0" :trans-errors '(:WARNINGS 8 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 1452800 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 13686 :visit-id "09" :obset-id "09" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 13686 :visit-id "09" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2905 :al-overhead-at-end 0 :internal-dur-at-end 678 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3257 :pcs-gap 0 ) false 1 0 The scheduling data was generated by CASM 22.2. CASM was run in Phase II mode. 1406418264000 152.0 (Tic-Visit :proposal-id 13686 :visit-id "05" :proposal-version -1 :trans-version "20140605" :date "17-Jul-2014 06:35:25.0" :trans-errors '(:WARNINGS 6 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 1566384 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 13686 :visit-id "05" :obset-id "05" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 13686 :visit-id "05" :orbit-number 1 :pcs-time 333 :si-vis-utilization 3086 :al-overhead-at-end 0 :internal-dur-at-end 531 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3470 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 22.2. CASM was run in Phase II mode. same guide stars, orient used in 13334, visit 07 1406509973000 147.0 (Tic-Visit :proposal-id 1368 :visit-id "07" :proposal-version -1 :trans-version "20140605" :date "17-Jul-2014 06:11:16.0" :trans-errors '(:WARNINGS 6 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 1566384 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 1368 :visit-id "07" :obset-id "07" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 1368 :visit-id "07" :orbit-number 1 :pcs-time 333 :si-vis-utilization 3086 :al-overhead-at-end 0 :internal-dur-at-end 531 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3470 :pcs-gap 0 ) false 1 0 The scheduling data was generated by CASM 22.2. CASM was run in Phase II mode. same guide stars, orient used in 13334, visit 13 1411461660000 109.0 (Tic-Visit :proposal-id 13686 :visit-id "13" :proposal-version -1 :trans-version "20140605" :date "15-Jul-2014 14:07:05.0" :trans-errors '(:WARNINGS 8 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 1452800 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 13686 :visit-id "13" :obset-id "13" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 13686 :visit-id "13" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2867 :al-overhead-at-end 0 :internal-dur-at-end 678 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3231 :pcs-gap 0 ) false 1 0 The scheduling data was generated by CASM 22.2. CASM was run in Phase II mode. was done at 325.8 for first good epoch 1 and will be done 145.8 can't reach 145.8 on Aug 15 choice, wait until Sept 8th (probably lose a good fraction) or do 145.74 and 325.74. Impact is to mix unknown x component of proper motion into y parallax...level could be 0.5 pixel of proper motion into 0.5/1000 = 0.5 mpix of parallax...can live with that noise level. (Tic-Visit :proposal-id 13686 :visit-id "14" :proposal-version -1 :trans-version "20140605" :date "16-Jul-2014 14:35:19.0" :trans-errors '(:WARNINGS 6 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 1462448 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 13686 :visit-id "14" :obset-id "14" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 13686 :visit-id "14" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2913 :al-overhead-at-end 0 :internal-dur-at-end 496 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3494 :pcs-gap 0 ) false 1 0 The scheduling data was generated by CASM 22.2. CASM was run in Phase II mode. same guide stars, orient used in 13334, visit 02 tweaked orient to avoid bright star 1423943117000 325.8 (Tic-Visit :proposal-id 13686 :visit-id "15" :proposal-version -1 :trans-version "20140605" :date "16-Jul-2014 14:30:25.0" :trans-errors '(:WARNINGS 9 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 1517392 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 13686 :visit-id "15" :obset-id "15" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 13686 :visit-id "15" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2778 :al-overhead-at-end 0 :internal-dur-at-end 590 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3494 :pcs-gap 0 ) false 1 0 The scheduling data was generated by CASM 22.2. CASM was run in Phase II mode. same guide stars, orient used in 13334, visit 10 1427822853000 293.0 (Tic-Visit :proposal-id 13686 :visit-id "16" :proposal-version -1 :trans-version "20140605" :date "15-Jul-2014 14:19:53.0" :trans-errors '(:WARNINGS 9 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 1517392 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 13686 :visit-id "16" :obset-id "16" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 13686 :visit-id "16" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2818 :al-overhead-at-end 0 :internal-dur-at-end 590 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3257 :pcs-gap 0 ) false 1 0 The scheduling data was generated by CASM 22.2. CASM was run in Phase II mode. same guide stars, orient used in 13334, visit 03 1414282642000 97.0 (Tic-Visit :proposal-id 13686 :visit-id "17" :proposal-version -1 :trans-version "20140605" :date "15-Jul-2014 16:27:05.0" :trans-errors '(:WARNINGS 8 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 1517392 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 13686 :visit-id "17" :obset-id "17" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 13686 :visit-id "17" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2850 :al-overhead-at-end 0 :internal-dur-at-end 590 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3241 :pcs-gap 0 ) false 1 0 The scheduling data was generated by CASM 22.2. CASM was run in Phase II mode. same guide stars, orient used in 13334, visit 04 1427743493000 277.0 (Tic-Visit :proposal-id 13686 :visit-id "18" :proposal-version -1 :trans-version "20140605" :date "15-Jul-2014 16:32:19.0" :trans-errors '(:WARNINGS 6 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 1453296 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 13686 :visit-id "18" :obset-id "18" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 13686 :visit-id "18" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2845 :al-overhead-at-end 0 :internal-dur-at-end 486 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3241 :pcs-gap 0 ) false 1 0 The scheduling data was generated by CASM 22.2. CASM was run in Phase II mode. same guide stars, orient used in 13334, visit 06 1420950434000 332.0 (Tic-Visit :proposal-id 13686 :visit-id "19" :proposal-version -1 :trans-version "20140605" :date "15-Jul-2014 14:27:01.0" :trans-errors '(:WARNINGS 5 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 1462448 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 13686 :visit-id "19" :obset-id "19" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 13686 :visit-id "19" :orbit-number 1 :pcs-time 333 :si-vis-utilization 3067 :al-overhead-at-end 0 :internal-dur-at-end 451 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3470 :pcs-gap 0 ) false 1 0 The scheduling data was generated by CASM 22.2. CASM was run in Phase II mode. same guide stars, orient used in 13334, visit 08 1421036440000 327.0 (Tic-Visit :proposal-id 13686 :visit-id "20" :proposal-version -1 :trans-version "20140605" :date "15-Jul-2014 14:32:18.0" :trans-errors '(:WARNINGS 5 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 1462448 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 13686 :visit-id "20" :obset-id "20" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 13686 :visit-id "20" :orbit-number 1 :pcs-time 333 :si-vis-utilization 3129 :al-overhead-at-end 0 :internal-dur-at-end 451 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3470 :pcs-gap 0 ) false 1 0 The scheduling data was generated by CASM 22.2. CASM was run in Phase II mode. same guide stars, orient used in 13334, visit 11 Oct 22 is the optimal day and could go a few days earlier. The light curve rises fast after the 22nd from 9.0 mag to 8.0 mag by Oct 24. Oct 23 should still be no brighter than V=8.5 whereas the F621M,n=2 obs approach saturation at V=8.4 could drop to F673N, n=1 which is ok to V=7.9, but that loss of 0.5 mag depth reduces the small set of ref stars 1414193590000 302.0 (Tic-Visit :proposal-id 13686 :visit-id "21" :proposal-version -1 :trans-version "20140605" :date "15-Jul-2014 16:39:56.0" :trans-errors '(:WARNINGS 9 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 1517392 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 13686 :visit-id "21" :obset-id "21" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 13686 :visit-id "21" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2794 :al-overhead-at-end 0 :internal-dur-at-end 590 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3232 :pcs-gap 0 ) false 1 0 The scheduling data was generated by CASM 22.2. CASM was run in Phase II mode. same guide stars, orient used in 13334, visit 12 1429350103000 122.0 (Tic-Visit :proposal-id 13686 :visit-id "22" :proposal-version -1 :trans-version "20140605" :date "15-Jul-2014 16:42:20.0" :trans-errors '(:WARNINGS 7 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 1453296 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 13686 :visit-id "22" :obset-id "22" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 13686 :visit-id "22" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2774 :al-overhead-at-end 0 :internal-dur-at-end 486 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3232 :pcs-gap 0 ) false 1 0 The scheduling data was generated by CASM 22.2. CASM was run in Phase II mode. same guide stars, orient used in 13334, visit 14 1427307514000 289.0 (Tic-Visit :proposal-id 13686 :visit-id "23" :proposal-version -1 :trans-version "20140605" :date "15-Jul-2014 14:44:54.0" :trans-errors '(:WARNINGS 9 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 1517392 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 13686 :visit-id "23" :obset-id "23" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 13686 :visit-id "23" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2808 :al-overhead-at-end 0 :internal-dur-at-end 590 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3231 :pcs-gap 0 ) false 1 0