ASTROSAT CZTI

Data Quality Report

Orbit 15376

Creation date: 2024-06-27T17:07:32.700947
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/AS1A04_049T01_9000002266_15376cztM0_level2.evt modeM0/AS1A04_049T01_9000002266_15376cztM0_level2_quad_clean.evt
Size (bytes)207,815,04053,432,640
Size198.2 MB 51.0 MB
Events in quadrant A1,248,056355,369
Events in quadrant B1,425,713358,141
Events in quadrant C1,955,800349,443
Events in quadrant D1,460,418343,342

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0600
B0600
C0600
D0600

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060471
B064171
C081191
D065851

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A296560.202361%
B2965110.370995%
C2965943.170320%
D2965160.539629%

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 2966 2966 0 0 0.00% 0.00%
B 2966 2966 0 0 0.00% 0.00%
C 2966 2966 67 67 2.26% 2.26%
D 2966 2966 13 13 0.44% 0.44%

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 9 143 6142 88.15 321 314 66.1
A 0 226 2791 37.46 321 314 66.1
A 12 194 2461 32.47 321 314 66.1
B 8 3 94841 1488.75 325 315 63.5
B 10 245 35230 549.89 325 315 63.5
B 0 214 8284 125.5 325 315 63.5
C 3 233 712175 9520.16 318 319 74.8
C 5 96 3445 41.8 318 319 74.8
C 13 61 2246 25.76 318 319 74.8
D 9 68 94738 1204.88 316 305 78.4
D 2 33 74827 950.84 316 305 78.4
D 13 122 30449 384.61 316 305 78.4

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