There is a problem w/ your write-up. Check that you have valied entries for \$CAID and \$Campn in your analysis.php file. If that checks out, then Contact Stansberry"; return ; } // get first matching task $row = mysql_fetch_array($result); $title = $row["title"]; $princ = $row["principal"]; $deputy= $row["deputy"]; $campn0 = $row["campn0"]; $aorkeys = $row["aorkeys"]; // get real name of principal, deputies $princ = ioc_get_person($princ); $princ = $princ[0]; $deps = explode(",",$deputy); foreach ($deps as $depty) { $depty = trim($depty); $depty = ioc_get_person($depty); $depty = $depty[0]; $depty = explode(",",$depty); $depty = $depty[0]; // last names only $deplist[] = $depty; } $deplist = implode(", ", $deplist); $caid = sprintf("%03d",$caid); $file = "mips-".$caid.$campn.".analysis.php"; // if more matches, append the AORKEYS from those $numrows = mysql_num_rows($result); if ($numrows > 1) { $aorkeys = " " . $numrows . " Task Executions:  ". $aorkeys; for ($i=0;$i < mysql_num_rows($result); $i++) { $row = mysql_fetch_array($result); $morekeys = $row["aorkeys"]; $aorkeys = $aorkeys .';  '.$morekeys; } } // END PHP. ?> <? echo "MIPS-$caid, Campaign $campn IOC/SV Analysis"; ?>

Principal:
Deputy:
Analyst:
AORKEYS:
Last Updated:

Task Outcome Summary

Abstract

This tasks aims at checking the sensitivity of the TPM (Total Power Mode) AOT by integrating deep on
the North Ecliptic Pole (NEP) and other fields (for tracking the Earth-trailing dust cloud). It is also useful
to check the mode itself. The TPM mode seem to work very well, with no strong latency effect for the Ge arrays
(but the background was low) and good accuracy. The ratio between SPOT predictions and the measured DN/s is
remarkably constant and stable (down to 6% at 70, 7% at 160 and 4% at 24). We got:
1) At 70 microns, S/N of ~3 in 50s for 4.3 MJy/sr.
2) At 160 microns, S/N of ~6 in 50s for 7 MJy/sr.
3) At 24 microns, S/N of ~70 in 50s for 14 MJy/sr.
(these numbers made use of the SPOT predictions, not MIPS calibration).
Conclusion: TPM seems reliable and sensitive, and pretty accurate.
Open issues: what will happen for the Ge arrays on high backround ? Also, compare the troughput
with photometry and scan (mips-150).

Analysis

Processing
DAT version 2.61
at 70:
mips_sloper -n -l -q
mips_caler -P mips_caler70.param
check_tpm_ioc, 'MIPS.2.000AORKEY.0000.0000.tran_ext.cal.fits'

at 160:
mips_sloper -l -q
mips_caler -P mips_caler160.param
check_tpm_ioc, 'MIPS.2.000AORKEY.0000.0000.tran_ext.cal.fits'


at 24:
mips_sloper
mips_caler
check_tpm_ioc, 'MIPS.2.000AORKEY.0000.0000.tran_ext.cal.fits'



At this preliminary stage, the following AORs were not reduced because of a repacking
issue: 7787520, 7862272, 7862528.
So I just processed AORS: 7787776, 7862784, 7863040

Analysis
To analyze the data, I just made statistics on all the good pixels of an array
on all the sky observations. This mode is designed to give one number, namely the
absolute value of the background, so all the pixels are used. This mode is not designed
to give an "absolute map" because the redudancy is too low.
For instance at 70 we have 5 cycles, so the values I give are derived from 5 frames of almost half the array.
The following printouts are statistics on the sky frames (usually 5 frames of 10s), in DN/s.
No subtraction for the preceeding DCE has been done, and I checked that the sky values are not
contaminated by latents.

Results

70 microns
--------------------------------------------------------------------------------------------------------
MIPS.2.0007787776.0000.0000.tran_ext.cal.fits RA:18h00m04.7s DEC:+66d02m27s
 Statistics on  2384 pixels and  5 cycles at  70 microns, 10s DCE:
    min           max         mean         stdev           skew         kurt      med          stdevmed
   0.00104866    0.0548621   0.00888733   0.00266398      3.00862      39.4785   0.00866690   0.00266854
 S/N:   3.336
--------------------------------------------------------------------------------------------------------
MIPS.2.0007862784.0000.0000.tran_ext.cal.fits RA:10h06m48.6s DEC:+09d47m59s
 Statistics on  2395 pixels and  5 cycles at  70 microns, 10s DCE:
    min           max         mean         stdev           skew         kurt      med          stdevmed
    0.0148763    0.0480949    0.0317756   0.00538308     0.160931    -0.259745    0.0316516   0.00538380
 S/N:   5.903
--------------------------------------------------------------------------------------------------------
MIPS.2.0007863040.0000.0000.tran_ext.cal.fits RA:22h12m04.0s DEC:-12d59m54s
 Statistics on  2395 pixels and  5 cycles at  70 microns, 10s DCE:
    min           max         mean         stdev           skew         kurt      med          stdevmed
    0.0179389    0.0488051    0.0327494   0.00520012     0.152940    -0.279223    0.0326305   0.00520080
 S/N:   6.298
--------------------------------------------------------------------------------------------------------

160 microns
--------------------------------------------------------------------------------------------------------
MIPS.3.0007787776.0000.0000.tran_ext.cal.fits RA:18h04m44.4s DEC:+65d43m32s
 Statistics on   175 pixels and  5 cycles at 160 microns, 10s DCE:
    min           max         mean         stdev           skew         kurt      med          stdevmed
     0.125213     0.262812     0.182931    0.0290891     0.539009     0.105710     0.178724    0.0292417
 S/N:   6.289
--------------------------------------------------------------------------------------------------------
MIPS.3.0007862784.0000.0000.tran_ext.cal.fits RA:10h07m44.1s DEC:+10d19m24s
 Statistics on   175 pixels and  5 cycles at 160 microns, 10s DCE:
    min           max         mean         stdev           skew         kurt      med          stdevmed
     0.109660     0.289457     0.200992    0.0326285   0.00235170     0.133059     0.201020    0.0326285
 S/N:   6.160
--------------------------------------------------------------------------------------------------------
MIPS.3.0007863040.0000.0000.tran_ext.cal.fits RA:22h12m52.2s DEC:-13d32m06s
 Statistics on   175 pixels and  5 cycles at 160 microns, 10s DCE:
    min           max         mean         stdev           skew         kurt      med          stdevmed
     0.131998     0.387546     0.235101    0.0474817     0.591358     0.682173     0.227002    0.0478278
 S/N:   4.951
--------------------------------------------------------------------------------------------------------

24 microns
--------------------------------------------------------------------------------------------------------
MIPS.1.0007787776.0000.0000.tran_ext.cal.fits RA:18h03m47.8s DEC:+65d47m45s
 Statistics on 81810 pixels and  5 cycles at  24 microns,  8s DCE:
    min           max         mean         stdev           skew         kurt      med          stdevmed
      251.031      486.143      341.757      5.04106      4.82230      130.977      341.600      5.04227
 S/N:  67.795
--------------------------------------------------------------------------------------------------------
MIPS.1.0007862784.0000.0000.tran_ext.cal.fits RA:10h07m31.5s DEC:+10d12m56s
 Statistics on 81810 pixels and  5 cycles at  24 microns,  8s DCE:
    min           max         mean         stdev           skew         kurt      med          stdevmed
      1263.30      1413.84      1339.39      7.88487    -0.196930      2.69373      1339.44      7.88495
 S/N: 169.869
--------------------------------------------------------------------------------------------------------
MIPS.1.0007863040.0000.0000.tran_ext.cal.fits RA:22h12m43.1s DEC:-13d25m16s
 Statistics on 81810 pixels and  5 cycles at  24 microns,  8s DCE:
    min           max         mean         stdev           skew         kurt      med          stdevmed
      1301.53      1438.09      1369.89      8.24749   -0.0747029      2.17132      1369.88      8.24749
 S/N: 166.098
--------------------------------------------------------------------------------------------------------


70 microns
SPOT Predictions for 23-Nov-2003 are:
Field RA:18h00m04.7s DEC:+66d02m27s: 4.3 MJy/sr
Field RA:10h06m48.6s DEC:+09d47m59s: 17.1 MJy/sr
Field RA:22h12m04.0s DEC:-12d59m54s: 15.8 MJy/sr

Ratio SPOT/MIPS obs: [1.99 +/- 0.12 ]* 10^{-3} MJy/sr/DN/s

160 microns
SPOT Predictions for 23-Nov-2003 are:
RA:18h04m44.4s DEC:+65d43m32s: 6.8 MJy/sr
RA:10h07m44.1s DEC:+10d19m24s: 8.6 MJy/sr
RA:22h12m52.2s DEC:-13d32m06s: 9.1 MJy/sr

Ratio SPOT/MIPS obs: [2.53 +/- 0.18]* 10^{-2} MJy/sr/DN/s

24 microns
SPOT Predictions for 23-Nov-2003 are:
RA:18h03m47.8s DEC:+65d47m45s: 13.8 MJy/sr
RA:10h07m31.5s DEC:+10d12m56s: 57.3 MJy/sr
RA:22h12m43.1s DEC:-13d25m16s: 55.1 MJy/sr

Ratio SPOT/MIPS obs: 24.26 +/- 0.95 MJy/sr/DN/s

Ratio SPOT / MIPS
The value in MJy/sr/DN/s (ratio SPOT prediction over MIPS DN/s)
is thus constant at the 6% level at 70, at the 7% level at 160,
and at the 4% level at 24.

Even if the calibration factor is not yet known with accuracy to
convert TPM DN/s into brigthness, the ratio with SPOT predictions is
remarkably constant.

Sensitivity
Assuming SPOT values are correct, I estimate the following
sensitivities for 10s integration, 1 sigma:
at 70: 2.9 MJy/sr or 6.5 MJy/sr or 5.9 MJy/sr
at 160:2.4 MJy/sr or 3.1 MJy/sr or 4.1 MJy/sr
at 24: 0.45 MJy/sr or 0.76 MJy/sr or 0.74 MJy/sr
(the 3 numbers come from the 3 different observations).
I don't understand the scatter.

Conclusions

TPM seem to work very well, at least on moderate or low background.
The ratio between SPOT predictions and the measured DN/s is
remarkably constant and stable (down to 6% at 70, 7% at 160 and 4% at 24). We got:
1) At 70 microns, S/N of ~3 in 50s for 4.3 MJy/sr.
2) At 160 microns, S/N of ~6 in 50s for 7 MJy/sr.
3) At 24 microns, S/N of ~70 in 50s for 14 MJy/sr.
We still have to work the details on calibration and why the computed
a sigma sensitivity varies.
Open issues: what will happen for the Ge arrays on high backround ? Also, compare the troughput
with photometry and scan (mips-150).


Output and Deliverable Products

None

Actions Following Analysis

None
# tar -cvf mips-270V.tar mips-270V.analysis.php