ASTROSAT CZTI

Data Quality Report

Orbit 07672

Creation date: 2024-06-27T15:22:32.485130
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/AS1A02_029T01_9000001058_07672cztM0_level2.evt modeM0/AS1A02_029T01_9000001058_07672cztM0_level2_quad_clean.evt
Size (bytes)448,920,00086,276,160
Size428.1 MB 82.3 MB
Events in quadrant A3,176,105549,231
Events in quadrant B3,336,296556,061
Events in quadrant C3,121,933545,171
Events in quadrant D3,527,726517,036

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132763
B0136942
C0132352
D0145002

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6378891.395422%
B6378881.379743%
C6378490.768266%
D63781141.787394%

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 7618 6379 1 1 0.01% 0.02%
B 7618 6379 7 7 0.09% 0.11%
C 7618 6379 0 0 0.00% 0.00%
D 7618 6379 28 28 0.37% 0.44%

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 0 226 8073 43.78 822 807 166.0
A 12 194 7373 39.56 822 807 166.0
A 13 170 5639 29.11 822 807 166.0
B 5 255 82212 529.23 816 798 153.8
B 0 214 29509 186.63 816 798 153.8
B 12 111 14337 88.01 816 798 153.8
C 13 61 6137 28.94 797 801 184.4
C 10 22 5531 25.65 797 801 184.4
C 9 68 5082 23.22 797 801 184.4
D 2 152 143945 742.76 800 780 192.7
D 12 0 125237 645.7 800 780 192.7
D 13 104 75272 386.47 800 780 192.7

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