ASTROSAT CZTI

Data Quality Report

Orbit 29704

Creation date: 2024-06-27T20:07:00.723060
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/AS1A10_007T01_9000004276_29704cztM0_level2.evt modeM0/AS1A10_007T01_9000004276_29704cztM0_level2_quad_clean.evt
Size (bytes)607,066,560103,527,360
Size578.9 MB 98.7 MB
Events in quadrant A3,179,210682,890
Events in quadrant B5,229,044697,352
Events in quadrant C4,958,267665,204
Events in quadrant D4,590,903648,323

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133923
B0196083
C0190133
D0180113

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6322530.838342%
B63221432.261942%
C63224416.975641%
D63221392.198671%

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 7532 6324 0 0 0.00% 0.00%
B 7532 6322 4 4 0.05% 0.06%
C 7532 6323 179 179 2.38% 2.83%
D 7532 6324 64 64 0.85% 1.01%

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 13 254 12541 71.18 823 809 164.8
A 3 137 7936 43.24 823 809 164.8
A 0 226 6921 37.08 823 809 164.8
B 6 159 1923572 12342.36 823 804 155.8
B 0 229 46701 294.62 823 804 155.8
B 12 111 18911 116.23 823 804 155.8
C 3 233 1604774 8607.58 794 800 186.3
C 14 238 130780 697.52 794 800 186.3
C 10 22 107923 574.86 794 800 186.3
D 8 195 658856 3434.46 797 777 191.6
D 7 80 468966 2443.44 797 777 191.6
D 13 153 155596 807.99 797 777 191.6

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