ASTROSAT CZTI

Data Quality Report

Orbit 14236

Creation date: 2024-06-27T16:52:18.306794
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/AS1G08_084T01_9000002100_14236cztM0_level2.evt modeM0/AS1G08_084T01_9000002100_14236cztM0_level2_quad_clean.evt
Size (bytes)214,280,64042,261,120
Size204.4 MB 40.3 MB
Events in quadrant A1,229,371286,225
Events in quadrant B1,915,666271,526
Events in quadrant C1,423,491277,051
Events in quadrant D1,749,554265,278

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0520
B0520
C0520
D0520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A054031
B074051
C058751
D069141

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2496371.482372%
B249632012.820513%
C2496361.442308%
D24961255.008013%

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 2757 2498 0 0 0.00% 0.00%
B 2757 2498 144 144 5.22% 5.76%
C 2757 2498 2 2 0.07% 0.08%
D 2757 2498 65 65 2.36% 2.60%

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 8 15 58768 929.55 297 290 62.9
A 12 189 24852 390.43 297 290 62.9
A 0 226 2669 37.82 297 290 62.9
B 10 16 547339 9736.47 285 278 56.2
B 0 229 179625 3191.98 285 278 56.2
B 3 209 12257 213.2 285 278 56.2
C 3 233 322560 4874.98 281 282 66.1
C 14 234 3825 53.59 281 282 66.1
C 13 61 2047 26.7 281 282 66.1
D 5 222 369333 5444.22 275 267 67.8
D 1 52 183326 2700.36 275 267 67.8
D 8 195 41318 605.56 275 267 67.8

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