ASTROSAT CZTI

Data Quality Report

Orbit 13603

Creation date: 2024-06-27T16:43:22.920845
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/AS1C03_015T02_9000002008_13603cztM0_level2.evt modeM0/AS1C03_015T02_9000002008_13603cztM0_level2_quad_clean.evt
Size (bytes)450,763,20099,423,360
Size429.9 MB 94.8 MB
Events in quadrant A2,364,043675,039
Events in quadrant B3,006,371685,181
Events in quadrant C2,377,558681,385
Events in quadrant D5,553,198607,924

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0105312
B0122861
C0105411
D0201671

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5152100.194099%
B51521192.309783%
C515250.097050%
D515288917.255435%

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 6363 5154 0 0 0.00% 0.00%
B 6363 5154 39 39 0.61% 0.76%
C 6363 5154 1 1 0.02% 0.02%
D 6363 5154 539 539 8.47% 10.46%

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 13481 105.33 607 598 122.3
A 12 189 5937 43.65 607 598 122.3
A 0 226 5565 40.61 607 598 122.3
B 0 219 458431 4062.64 604 591 112.7
B 0 214 124533 1099.8 604 591 112.7
B 3 209 18417 158.18 604 591 112.7
C 3 233 68636 506.98 585 589 134.2
C 0 207 19400 140.15 585 589 134.2
C 12 4 5138 33.89 585 589 134.2
D 13 122 3229153 24498.88 555 539 131.8
D 8 195 63680 479.12 555 539 131.8
D 1 20 46566 349.26 555 539 131.8

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