ASTROSAT CZTI

Data Quality Report

Orbit 05638

Creation date: 2024-06-27T14:57:27.021171
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_032T02_9000000730_05638cztM0_level2.evt modeM0/AS1G06_032T02_9000000730_05638cztM0_level2_quad_clean.evt
Size (bytes)669,602,88099,336,960
Size638.6 MB 94.7 MB
Events in quadrant A4,793,077585,124
Events in quadrant B5,016,782572,128
Events in quadrant C4,608,906588,457
Events in quadrant D5,154,340543,259

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A025344
B025440
C025337
D025444

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0262134570
B0265824720
C0254364278
D0291526324

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0142
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A104231111.064953%
B10338810.783517%
C10414380.364893%
D102651581.539211%

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 13880 11658 28 28 0.20% 0.24%
B 13880 11608 7 7 0.05% 0.06%
C 13880 11627 1 1 0.01% 0.01%
D 13880 11512 61 61 0.44% 0.53%

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 14 111 174136 703.78 1191 1163 245.8
A 0 50 19479 74.52 1191 1163 245.8
A 0 226 11753 43.09 1191 1163 245.8
B 0 214 115979 502.3 1194 1166 228.6
B 15 204 113354 490.82 1194 1166 228.6
B 11 51 82932 357.72 1194 1166 228.6
C 1 16 72785 266.84 1155 1162 268.4
C 8 128 11151 37.22 1155 1162 268.4
C 13 61 9485 31.01 1155 1162 268.4
D 12 79 497906 1774.38 1133 1097 280.0
D 2 152 64479 226.37 1133 1097 280.0
D 9 85 41975 146.0 1133 1097 280.0

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