ASTROSAT CZTI

Data Quality Report

Orbit 20190429_A05_104T05_9000002870_level2

Creation date: 2025-11-29T17:20:53.964299
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_104T05_9000002870cztM0_level2.fits modeM0/AS1A05_104T05_9000002870cztM0_level2_quad_clean.evt
Size (bytes)132,261,120134,821,440
Size126.1 MB 128.6 MB
Events in quadrant A855,838885,072
Events in quadrant B827,368887,573
Events in quadrant C837,610857,861
Events in quadrant D513,594483,934

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02860
B02860
C02860
D02860

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0294540
B0294580
C0292580
D0935300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A140101701.213419%
B140102211.577445%
C140103012.148465%
D14010827459.057816%

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 16415 14009 0 0 0.00% 0.00%
B 16415 14008 0 0 0.00% 0.00%
C 16415 14008 0 0 0.00% 0.00%
D 16415 13900 0 0 0.00% 0.00%

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 0 29 878 11.69 223 210 57.1
A 0 30 701 8.59 223 210 57.1
A 9 19 676 8.15 223 210 57.1
B 2 9 699 10.66 218 208 46.1
B 2 8 590 8.29 218 208 46.1
B 3 17 557 7.58 218 208 46.1
C 1 81 653 7.62 220 206 58.7
C 12 241 610 6.89 220 206 58.7
C 2 191 602 6.75 220 206 58.7
D 1 31 384 6.17 146 132 40.8
D 10 190 374 5.93 146 132 40.8
D 3 159 369 5.8 146 132 40.8

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