ASTROSAT CZTI

Data Quality Report

Orbit 30425

Creation date: 2024-06-27T20:15:05.110916
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/AS1A10_121T02_9000004378_30425cztM0_level2.evt modeM0/AS1A10_121T02_9000004378_30425cztM0_level2_quad_clean.evt
Size (bytes)174,133,44012,257,280
Size166.1 MB 11.7 MB
Events in quadrant A1,116,80560,915
Events in quadrant B1,634,15560,012
Events in quadrant C1,188,58860,212
Events in quadrant D1,212,50760,359

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A046131
B060901
C049321
D049661

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0360
B0360
C0360
D0360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1764693.911565%
B17641126.349206%
C17641126.349206%
D1764653.684807%

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 3024 1764 3 3 0.10% 0.17%
B 3024 1764 0 0 0.00% 0.00%
C 3024 1764 0 0 0.00% 0.00%
D 3024 1764 11 11 0.36% 0.62%

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 8 192 12699 214.84 284 279 57.8
A 0 13 7134 118.58 284 279 57.8
A 13 254 3303 52.31 284 279 57.8
B 6 159 505510 9514.39 278 271 53.1
B 0 229 16436 304.4 278 271 53.1
B 4 80 11233 206.42 278 271 53.1
C 3 233 63432 993.11 271 273 63.6
C 14 238 48309 755.31 271 273 63.6
C 0 10 10800 165.53 271 273 63.6
D 8 195 52950 760.82 277 271 69.2
D 13 104 31135 445.76 277 271 69.2
D 13 249 27110 387.62 277 271 69.2

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