ASTROSAT CZTI

Data Quality Report

Orbit 10187

Creation date: 2024-06-27T15:56:06.891973
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/AS1A03_133T01_9000001464_10187cztM0_level2.evt modeM0/AS1A03_133T01_9000001464_10187cztM0_level2_quad_clean.evt
Size (bytes)127,961,28017,009,280
Size122.0 MB 16.2 MB
Events in quadrant A907,06494,618
Events in quadrant B932,83090,339
Events in quadrant C904,19193,536
Events in quadrant D1,004,415102,778

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A07031
B07033
C07033
D06930

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A071813472
B078084065
C074573740
D074733363

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1788120.671141%
B1748191.086957%
C178660.335946%
D195860.306435%

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 2070 2026 0 0 0.00% 0.00%
B 2070 1994 1 1 0.05% 0.05%
C 2070 2012 0 0 0.00% 0.00%
D 2070 2024 0 0 0.00% 0.00%

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 3 1 2161 39.78 234 229 48.6
A 0 226 2114 38.82 234 229 48.6
A 12 194 1941 35.25 234 229 48.6
B 4 239 22236 491.6 229 223 44.8
B 0 214 7759 168.3 229 223 44.8
B 0 219 7113 153.87 229 223 44.8
C 14 67 4902 86.91 230 231 53.7
C 13 61 1699 27.31 230 231 53.7
C 3 202 573 6.36 230 231 53.7
D 1 52 24851 372.85 247 241 66.0
D 8 195 21647 324.31 247 241 66.0
D 2 234 6077 88.42 247 241 66.0

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