ASTROSAT CZTI

Data Quality Report

Orbit 15733

Creation date: 2024-06-27T17:12:45.683508
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_015T04_9000002328_15733cztM0_level2.evt modeM0/AS1C03_015T04_9000002328_15733cztM0_level2_quad_clean.evt
Size (bytes)295,735,68086,178,240
Size282.0 MB 82.2 MB
Events in quadrant A2,095,104580,270
Events in quadrant B2,101,833602,502
Events in quadrant C2,108,108571,714
Events in quadrant D2,361,370556,404

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0880
B0880
C0880
D0880

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A089732
B089571
C089631
D099831

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4245210.494700%
B4245340.800942%
C4245370.871614%
D4245521.224971%

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 5561 4247 6 6 0.11% 0.14%
B 5561 4247 1 1 0.02% 0.02%
C 5561 4247 0 0 0.00% 0.00%
D 5561 4246 32 32 0.58% 0.75%

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 15 69 65335 622.79 515 506 104.1
A 15 239 44292 420.63 515 506 104.1
A 0 226 4531 38.67 515 506 104.1
B 3 209 32304 322.91 520 507 98.5
B 4 173 10760 104.12 520 507 98.5
B 12 111 10699 103.5 520 507 98.5
C 3 233 96920 846.16 494 496 114.0
C 14 238 76995 671.31 494 496 114.0
C 10 22 5440 43.39 494 496 114.0
D 1 52 349169 2796.25 493 480 124.7
D 8 173 54820 435.77 493 480 124.7
D 8 174 23996 188.58 493 480 124.7

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