ASTROSAT CZTI

Data Quality Report

Orbit 30700

Creation date: 2024-06-27T20:18:36.763987
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/AS1A10_058T14_9000004430_30700cztM0_level2.evt modeM0/AS1A10_058T14_9000004430_30700cztM0_level2_quad_clean.evt
Size (bytes)724,256,64061,945,920
Size690.7 MB 59.1 MB
Events in quadrant A4,344,625360,653
Events in quadrant B5,292,892377,137
Events in quadrant C3,784,386362,118
Events in quadrant D8,083,524330,615

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0169581
B0196641
C0152961
D0285121

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63772714.249647%
B6377861.348597%
C63782553.998119%
D63774627.244786%

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 7656 6376 218 218 2.85% 3.42%
B 7657 6377 4 4 0.05% 0.06%
C 7657 6377 7 7 0.09% 0.11%
D 7657 6377 362 362 4.73% 5.68%

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 13 987436 5791.99 868 854 170.3
A 8 192 12335 67.4 868 854 170.3
A 13 254 11765 64.06 868 854 170.3
B 6 159 1762023 10940.4 870 850 161.0
B 0 190 75777 465.45 870 850 161.0
B 5 172 21099 125.79 870 850 161.0
C 14 238 207137 1075.96 835 843 191.7
C 3 233 173375 899.87 835 843 191.7
C 14 254 90017 465.1 835 843 191.7
D 8 195 4405576 22470.67 825 808 196.0
D 12 233 315612 1605.95 825 808 196.0
D 12 218 73602 371.35 825 808 196.0

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