ASTROSAT CZTI

Data Quality Report

Orbit 17191

Creation date: 2024-06-27T17:33:23.368886
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/AS1A05_185T04_9000002548_17191cztM0_level2.evt modeM0/AS1A05_185T04_9000002548_17191cztM0_level2_quad_clean.evt
Size (bytes)464,627,52096,698,880
Size443.1 MB 92.2 MB
Events in quadrant A3,034,443643,004
Events in quadrant B3,208,449639,994
Events in quadrant C4,113,891600,420
Events in quadrant D3,287,439606,282

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131191
B0136701
C0162331
D0139711

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6290711.128776%
B6291831.319345%
C62911672.654586%
D62911031.637260%

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 7290 6290 0 0 0.00% 0.00%
B 7291 6291 4 4 0.05% 0.06%
C 7291 6291 12 12 0.16% 0.19%
D 7291 6291 35 35 0.48% 0.56%

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 12 189 63337 399.3 772 755 156.7
A 0 226 6824 38.72 772 755 156.7
A 12 194 5751 31.87 772 755 156.7
B 0 219 77076 523.64 763 744 145.8
B 4 216 39940 268.88 763 744 145.8
B 7 220 27594 184.19 763 744 145.8
C 3 233 1113446 6556.82 727 733 169.7
C 14 238 116769 683.76 727 733 169.7
C 9 54 31555 181.62 727 733 169.7
D 5 222 178847 973.03 751 729 183.1
D 10 70 113173 614.26 751 729 183.1
D 1 52 62500 337.44 751 729 183.1

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