ASTROSAT CZTI

Data Quality Report

Orbit 06744

Creation date: 2024-06-27T15:11:10.173821
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_168T10_9000000932_06744cztM0_level2.evt modeM0/AS1G06_168T10_9000000932_06744cztM0_level2_quad_clean.evt
Size (bytes)196,096,32023,641,920
Size187.0 MB 22.5 MB
Events in quadrant A1,330,455141,795
Events in quadrant B1,324,496146,773
Events in quadrant C1,116,023143,006
Events in quadrant D2,026,092134,475

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0420
B0420
C0420
D0420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A052712
B052201
C045301
D074181

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2061974.706453%
B20611145.531295%
C2061422.037846%
D206133116.060165%

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 3346 2062 19 19 0.57% 0.92%
B 3346 2062 13 13 0.39% 0.63%
C 3346 2062 0 0 0.00% 0.00%
D 3346 2062 201 201 6.01% 9.75%

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 13 248 71041 1164.32 286 280 60.8
A 4 2 65195 1068.13 286 280 60.8
A 13 251 55549 909.41 286 280 60.8
B 4 48 79982 1393.95 287 281 57.2
B 4 80 46549 809.22 287 281 57.2
B 4 170 30606 530.38 287 281 57.2
C 9 247 14569 210.59 281 282 67.8
C 13 61 2232 28.74 281 282 67.8
C 12 4 2101 26.81 281 282 67.8
D 2 33 667130 9915.73 264 255 67.3
D 2 152 150907 2240.04 264 255 67.3
D 8 195 78870 1168.92 264 255 67.3

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