ASTROSAT CZTI

Data Quality Report

Orbit 47313

Creation date: 2024-06-28T02:52:35.162101
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/AS1A13_093T12_9000006314_47313cztM0_level2.fits modeM0/AS1A13_093T12_9000006314_47313cztM0_level2_quad_clean.evt
Size (bytes)173,816,64028,382,400
Size165.8 MB 27.1 MB
Events in quadrant A2,267,028182,899
Events in quadrant B848,505203,494
Events in quadrant C1,505,288173,243
Events in quadrant D1,676,151172,095

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0360
B0360
C0360
D0360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A1140177752414248140174847639598
B1-1-1
C1-1-1
D1-1-1

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080121
B036701
C055721
D061681

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A173919611.270845%
B173960.345026%
C173922612.995975%
D17391458.338125%

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 1739 1739 84 84 4.83% 4.83%
B 1739 1739 0 0 0.00% 0.00%
C 1739 1739 197 197 11.33% 11.33%
D 1739 1739 162 162 9.32% 9.32%

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 10 83 1258141 30309.15 193 189 41.5
A 9 191 207358 4991.54 193 189 41.5
A 15 235 41433 993.73 193 189 41.5
B 0 197 11642 280.09 201 195 40.9
B 14 167 6634 157.55 201 195 40.9
B 0 198 6367 151.02 201 195 40.9
C 12 2 659030 14725.66 183 184 44.7
C 3 233 123122 2747.75 183 184 44.7
C 14 254 5151 111.02 183 184 44.7
D 6 112 611118 12049.98 198 192 50.7
D 11 192 101337 1995.0 198 192 50.7
D 12 128 81296 1599.71 198 192 50.7

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