ASTROSAT CZTI

Data Quality Report

Orbit 14834

Creation date: 2024-06-27T17:00:10.399341
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/AS1C03_005T02_9000002192_14834cztM0_level2.evt modeM0/AS1C03_005T02_9000002192_14834cztM0_level2_quad_clean.evt
Size (bytes)171,083,52048,997,440
Size163.2 MB 46.7 MB
Events in quadrant A1,202,548336,113
Events in quadrant B1,300,260340,855
Events in quadrant C1,315,598331,953
Events in quadrant D1,216,151320,699

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A049832
B052611
C053051
D049881

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0440
B0440
C0440
D0440

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2128713.336466%
B2128904.229323%
C2128803.759398%
D2128632.960526%

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 3319 2130 2 2 0.06% 0.09%
B 3319 2130 10 10 0.30% 0.47%
C 3319 2130 21 21 0.63% 0.99%
D 3319 2130 9 9 0.27% 0.42%

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 12 189 33387 539.29 301 295 61.4
A 9 143 6024 93.36 301 295 61.4
A 4 2 3427 51.04 301 295 61.4
B 0 229 67087 1194.92 295 288 55.9
B 0 189 28387 502.64 295 288 55.9
B 3 64 27924 494.36 295 288 55.9
C 3 233 100167 1470.79 294 295 67.9
C 0 207 70342 1031.57 294 295 67.9
C 13 61 2076 26.23 294 295 67.9
D 7 254 30416 417.07 298 289 72.2
D 2 136 23170 316.76 298 289 72.2
D 10 70 11987 161.95 298 289 72.2

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