ASTROSAT CZTI

Data Quality Report

Orbit 25032

Creation date: 2024-06-27T19:13:01.633870
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/AS1T03_206T01_9000003672_25032cztM0_level2.evt modeM0/AS1T03_206T01_9000003672_25032cztM0_level2_quad_clean.evt
Size (bytes)129,372,48017,657,280
Size123.4 MB 16.8 MB
Events in quadrant A784,081106,158
Events in quadrant B782,006111,032
Events in quadrant C827,746104,207
Events in quadrant D1,415,43297,051

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A032280
B032300
C033340
D053190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A156030.192308%
B1560130.833333%
C1560120.769231%
D1560664.230769%

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 1560 1560 0 0 0.00% 0.00%
B 1560 1560 0 0 0.00% 0.00%
C 1560 1560 1 1 0.06% 0.06%
D 1560 1560 38 38 2.44% 2.44%

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 11 208 8085 181.51 201 195 43.5
A 13 254 2141 44.77 201 195 43.5
A 3 137 1979 41.04 201 195 43.5
B 12 111 5057 120.46 198 193 40.4
B 11 111 4716 112.02 198 193 40.4
B 14 111 4177 98.67 198 193 40.4
C 7 247 32562 687.66 190 191 47.1
C 14 238 29513 622.89 190 191 47.1
C 0 239 12517 261.84 190 191 47.1
D 8 195 400881 8302.72 190 183 48.3
D 1 52 270512 5601.39 190 183 48.3
D 13 174 22868 470.04 190 183 48.3

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