ASTROSAT CZTI

Data Quality Report

Orbit 32204

Creation date: 2024-06-27T20:37:33.573000
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_057T01_9000004692_32204cztM0_level2.evt modeM0/AS1A10_057T01_9000004692_32204cztM0_level2_quad_clean.evt
Size (bytes)595,319,04072,552,960
Size567.7 MB 69.2 MB
Events in quadrant A3,137,664447,161
Events in quadrant B5,391,875445,235
Events in quadrant C4,345,388441,749
Events in quadrant D4,733,252427,881

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134532
B0207451
C0173451
D0183711

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6231410.658000%
B62312433.899856%
C62312323.723319%
D62313385.424490%

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 7331 6232 0 0 0.00% 0.00%
B 7331 6232 67 67 0.91% 1.08%
C 7331 6232 4 4 0.05% 0.06%
D 7331 6232 152 152 2.07% 2.44%

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 16129 95.41 802 788 160.8
A 13 254 12648 73.76 802 788 160.8
A 12 189 12019 69.85 802 788 160.8
B 6 159 1839984 12290.39 791 773 149.6
B 5 172 303638 2023.87 791 773 149.6
B 0 229 61325 404.63 791 773 149.6
C 3 233 1034715 5697.62 779 785 181.5
C 14 238 144204 790.33 779 785 181.5
C 14 67 45045 243.9 779 785 181.5
D 8 195 803654 4342.42 773 754 184.9
D 12 218 487632 2633.24 773 754 184.9
D 13 249 206845 1114.63 773 754 184.9

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