ASTROSAT CZTI

Data Quality Report

Orbit 07524

Creation date: 2024-06-27T15:20:48.719681
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/AS1G06_076T01_9000001038_07524cztM0_level2.evt modeM0/AS1G06_076T01_9000001038_07524cztM0_level2_quad_clean.evt
Size (bytes)451,356,48078,920,640
Size430.4 MB 75.3 MB
Events in quadrant A3,165,958492,823
Events in quadrant B3,200,668501,576
Events in quadrant C3,080,240484,864
Events in quadrant D3,787,627464,090

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135343
B0135642
C0134372
D0154272

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6399741.156431%
B6399731.140803%
C6399560.875137%
D63991221.906548%

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 7579 6399 3 3 0.04% 0.05%
B 7579 6399 1 1 0.01% 0.02%
C 7579 6400 0 0 0.00% 0.00%
D 7579 6399 42 42 0.55% 0.66%

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 13 251 45905 279.82 804 786 161.2
A 13 14 15677 92.35 804 786 161.2
A 13 248 8391 47.16 804 786 161.2
B 0 214 56386 366.71 806 786 151.6
B 12 111 14976 93.59 806 786 151.6
B 0 219 13362 82.95 806 786 151.6
C 8 229 18910 100.76 782 786 179.9
C 13 61 6019 29.09 782 786 179.9
C 9 68 5998 28.98 782 786 179.9
D 12 221 324303 1716.04 779 755 188.5
D 2 152 198730 1050.03 779 755 188.5
D 2 14 109646 577.54 779 755 188.5

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