ASTROSAT CZTI

Data Quality Report

Orbit 04409

Creation date: 2024-06-27T14:41:34.559255
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/AS1G05_230T04_9000000550_04409cztM0_level2.evt modeM0/AS1G05_230T04_9000000550_04409cztM0_level2_quad_clean.evt
Size (bytes)533,819,520110,260,800
Size509.1 MB 105.2 MB
Events in quadrant A4,067,754688,105
Events in quadrant B3,857,878690,343
Events in quadrant C3,740,491694,060
Events in quadrant D3,918,347671,391

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01740
B01740
C01740
D01740

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0183420
B0175420
C0174760
D0183280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A85761551.807369%
B8577350.408068%
C8577320.373091%
D8577770.897750%

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 9317 8578 68 68 0.73% 0.79%
B 9317 8578 2 2 0.02% 0.02%
C 9317 8578 1 1 0.01% 0.01%
D 9317 8578 46 46 0.49% 0.54%

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 0 50 190234 980.41 945 924 193.1
A 13 251 158764 817.43 945 924 193.1
A 14 111 71733 366.71 945 924 193.1
B 8 3 46506 249.84 957 935 182.4
B 15 204 36599 195.53 957 935 182.4
B 14 167 27415 145.18 957 935 182.4
C 9 16 56954 260.52 926 926 215.1
C 9 247 36599 165.87 926 926 215.1
C 12 4 19263 85.26 926 926 215.1
D 13 239 131786 585.54 924 896 223.5
D 12 227 62316 274.76 924 896 223.5
D 13 25 43546 190.8 924 896 223.5

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