ASTROSAT CZTI

Data Quality Report

Orbit 24532

Creation date: 2024-06-27T19:06:58.708569
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/AS1T03_183T01_9000003606_24532cztM0_level2.evt modeM0/AS1T03_183T01_9000003606_24532cztM0_level2_quad_clean.evt
Size (bytes)596,609,280126,480,960
Size569.0 MB 120.6 MB
Events in quadrant A4,414,575876,037
Events in quadrant B5,490,429842,515
Events in quadrant C3,391,494848,077
Events in quadrant D4,345,626824,535

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0175291
B0204891
C0142071
D0172651

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62952674.241461%
B629685813.627700%
C62961111.763024%
D62962884.574333%

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 7490 6296 67 67 0.89% 1.06%
B 7491 6297 537 537 7.17% 8.53%
C 7491 6297 22 22 0.29% 0.35%
D 7491 6297 234 234 3.12% 3.72%

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 14 111 1180966 7245.43 821 807 162.9
A 4 2 70866 430.12 821 807 162.9
A 13 254 10100 57.05 821 807 162.9
B 3 64 2411594 17036.5 777 761 141.5
B 0 190 27604 189.69 777 761 141.5
B 12 111 16648 112.27 777 761 141.5
C 2 16 202188 1137.86 779 785 177.0
C 14 238 127901 718.16 779 785 177.0
C 3 233 16024 86.1 779 785 177.0
D 1 52 1139535 5959.23 792 768 191.1
D 12 218 126496 657.94 792 768 191.1
D 8 195 72412 374.92 792 768 191.1

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