ASTROSAT CZTI

Data Quality Report

Orbit 15532

Creation date: 2024-06-27T17:09:57.153852
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/AS1G08_058T09_9000002300_15532cztM0_level2.evt modeM0/AS1G08_058T09_9000002300_15532cztM0_level2_quad_clean.evt
Size (bytes)488,574,72065,848,320
Size465.9 MB 62.8 MB
Events in quadrant A3,780,567393,440
Events in quadrant B3,631,623393,309
Events in quadrant C3,450,843376,974
Events in quadrant D3,493,899378,397

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151463
B0146352
C0138472
D0142552

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64711852.858909%
B64711562.410756%
C64711432.209859%
D64711281.978056%

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 7712 6472 48 48 0.62% 0.74%
B 7712 6472 7 7 0.09% 0.11%
C 7712 6472 0 0 0.00% 0.00%
D 7712 6472 19 19 0.25% 0.29%

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 14 238 278325 1574.54 882 865 176.2
A 7 16 43933 244.4 882 865 176.2
A 14 237 36816 204.02 882 865 176.2
B 4 48 45590 271.14 871 855 165.0
B 0 229 34328 202.88 871 855 165.0
B 15 201 31428 185.3 871 855 165.0
C 14 238 131004 675.68 835 841 192.6
C 3 233 46909 239.14 835 841 192.6
C 7 247 17401 85.96 835 841 192.6
D 12 221 86976 413.25 862 843 208.4
D 7 207 65696 311.15 862 843 208.4
D 5 222 25385 117.75 862 843 208.4

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