ASTROSAT CZTI

Data Quality Report

Orbit 43084

Creation date: 2024-06-27T22:47:48.995213
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/AS1T05_152T01_9000005846_43084cztM0_level2.fits modeM0/AS1T05_152T01_9000005846_43084cztM0_level2_quad_clean.evt
Size (bytes)332,020,80090,504,000
Size316.6 MB 86.3 MB
Events in quadrant A3,601,068612,277
Events in quadrant B2,583,242633,657
Events in quadrant C2,492,672596,534
Events in quadrant D3,213,904538,539

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139572
B0109092
C0103922
D0129932

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0220
C0220
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A51262454.779555%
B5126230.448693%
C512630.058525%
D51262294.467421%

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 7248 5127 194 194 2.68% 3.78%
B 7248 5127 11 11 0.15% 0.21%
C 7248 5127 1 1 0.01% 0.02%
D 7248 5127 181 181 2.50% 3.53%

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 15 237 675971 5767.51 578 567 117.1
A 10 83 611754 5219.14 578 567 117.1
A 12 189 47388 399.82 578 567 117.1
B 0 189 85876 769.95 579 564 110.8
B 3 112 79728 714.46 579 564 110.8
B 0 229 69595 623.01 579 564 110.8
C 15 214 233154 1775.53 566 570 131.0
C 12 2 14441 105.89 566 570 131.0
C 1 128 14335 105.08 566 570 131.0
D 1 52 342068 2508.26 561 545 136.2
D 10 118 228102 1671.25 561 545 136.2
D 12 218 146673 1073.21 561 545 136.2

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