ASTROSAT CZTI

Data Quality Report

Orbit 12075

Creation date: 2024-06-27T16:21:56.351646
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/AS1A04_130T01_9000001792_12075cztM0_level2.evt modeM0/AS1A04_130T01_9000001792_12075cztM0_level2_quad_clean.evt
Size (bytes)636,926,400113,454,720
Size607.4 MB 108.2 MB
Events in quadrant A3,997,722729,246
Events in quadrant B5,640,198708,478
Events in quadrant C4,131,569734,904
Events in quadrant D4,974,524703,785

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0172393
B0221932
C0175552
D0201092

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A80611181.463838%
B80615536.860191%
C8061450.558243%
D80611431.773973%

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 9077 8065 6 6 0.07% 0.07%
B 9077 8065 292 292 3.22% 3.62%
C 9077 8065 0 0 0.00% 0.00%
D 9077 8065 65 65 0.72% 0.81%

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 1 162 49661 245.3 978 956 198.6
A 13 251 47417 234.0 978 956 198.6
A 3 1 27060 131.47 978 956 198.6
B 4 239 1260549 6828.93 960 936 184.5
B 0 231 215380 1162.6 960 936 184.5
B 15 204 169464 913.67 960 936 184.5
C 8 208 395543 1759.14 957 964 224.3
C 13 61 7019 26.99 957 964 224.3
C 0 207 4274 14.76 957 964 224.3
D 1 52 865096 3711.99 954 925 232.8
D 8 195 266931 1142.61 954 925 232.8
D 13 104 74874 317.64 954 925 232.8

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