ASTROSAT CZTI

Data Quality Report

Orbit 22373

Creation date: 2024-06-27T18:39:58.204936
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/AS1A07_007T04_9000003310_22373cztM0_level2.evt modeM0/AS1A07_007T04_9000003310_22373cztM0_level2_quad_clean.evt
Size (bytes)468,103,68097,470,720
Size446.4 MB 93.0 MB
Events in quadrant A3,116,472637,562
Events in quadrant B3,219,783644,071
Events in quadrant C3,166,632616,161
Events in quadrant D4,227,441595,987

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136882
B0138482
C0137052
D0170442

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6566480.731039%
B6566560.852878%
C6566871.325008%
D65661862.832775%

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 7601 6566 0 0 0.00% 0.00%
B 7601 6566 1 1 0.01% 0.02%
C 7601 6566 1 1 0.01% 0.02%
D 7601 6566 127 127 1.67% 1.93%

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 9554 54.11 808 791 162.0
A 0 226 7067 38.75 808 791 162.0
A 3 137 6888 37.65 808 791 162.0
B 0 229 23064 146.69 804 783 151.9
B 0 190 18584 117.19 804 783 151.9
B 12 111 18093 113.96 804 783 151.9
C 14 238 120230 658.36 777 781 181.4
C 0 207 11784 60.64 777 781 181.4
C 13 61 5355 25.21 777 781 181.4
D 1 52 1200230 6312.7 784 758 190.0
D 13 172 38867 200.56 784 758 190.0
D 2 234 29490 151.21 784 758 190.0

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