ASTROSAT CZTI

Data Quality Report

Orbit 16297

Creation date: 2024-06-27T17:20:31.017583
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A05_101T04_9000002402_16297cztM0_level2.evt modeM0/AS1A05_101T04_9000002402_16297cztM0_level2_quad_clean.evt
Size (bytes)774,892,800144,483,840
Size739.0 MB 137.8 MB
Events in quadrant A6,086,577892,590
Events in quadrant B5,593,512936,183
Events in quadrant C5,831,753916,387
Events in quadrant D5,242,975901,402

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0246643
B0228982
C0236972
D0221364

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02140
B02140
C02140
D02140

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A105342652.515664%
B10534990.939814%
C105341341.272071%
D10533470.446217%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 13150 10537 164 164 1.25% 1.56%
B 13150 10537 1 1 0.01% 0.01%
C 13150 10537 18 18 0.14% 0.17%
D 13150 10537 3 3 0.02% 0.03%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 15 174 886434 3360.68 1344 1322 263.4
A 15 239 27897 100.9 1344 1322 263.4
A 0 226 11788 39.74 1344 1322 263.4
B 0 85 58837 231.25 1365 1334 248.7
B 0 198 52639 206.32 1365 1334 248.7
B 0 189 48891 191.25 1365 1334 248.7
C 3 233 320652 1057.42 1335 1345 302.0
C 14 238 210632 693.07 1335 1345 302.0
C 7 247 86065 280.56 1335 1345 302.0
D 1 52 60438 169.58 1334 1307 348.7
D 10 70 48222 134.55 1334 1307 348.7
D 7 38 40080 111.2 1334 1307 348.7

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter