ASTROSAT CZTI

Data Quality Report

Orbit 32133

Creation date: 2024-06-27T20:36:51.384992
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/AS1T04_051T01_9000004686_32133cztM0_level2.evt modeM0/AS1T04_051T01_9000004686_32133cztM0_level2_quad_clean.evt
Size (bytes)699,831,36079,329,600
Size667.4 MB 75.7 MB
Events in quadrant A3,276,953518,044
Events in quadrant B8,475,170488,031
Events in quadrant C3,868,118490,477
Events in quadrant D5,152,971469,903

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134272
B0294872
C0153192
D0195332

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6238260.416800%
B6238181729.127926%
C62383074.921449%
D62382844.552741%

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 7538 6239 0 0 0.00% 0.00%
B 7538 6239 1492 1492 19.79% 23.91%
C 7538 6239 121 121 1.61% 1.94%
D 7538 6239 237 237 3.14% 3.80%

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 13 6 19871 116.1 842 831 164.0
A 13 254 11561 65.43 842 831 164.0
A 3 137 7853 42.82 842 831 164.0
B 10 245 3366926 24007.38 765 751 140.2
B 6 159 1567885 11176.72 765 751 140.2
B 5 172 336899 2397.39 765 751 140.2
C 0 10 523186 2832.08 800 809 184.4
C 14 238 151278 815.77 800 809 184.4
C 14 254 27486 144.63 800 809 184.4
D 8 195 1275349 6844.54 797 778 186.2
D 12 233 632547 3392.64 797 778 186.2
D 12 227 174258 931.6 797 778 186.2

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