ASTROSAT CZTI

Data Quality Report

Orbit 30188

Creation date: 2024-06-27T20:12:00.798925
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/AS1A10_050T05_9000004342_30188cztM0_level2.evt modeM0/AS1A10_050T05_9000004342_30188cztM0_level2_quad_clean.evt
Size (bytes)977,019,84079,680,960
Size931.8 MB 76.0 MB
Events in quadrant A3,877,805495,005
Events in quadrant B6,106,023489,831
Events in quadrant C13,232,826386,455
Events in quadrant D5,818,306468,796

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0167731
B0247751
C0451101
D0228601

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01660
B01660
C01660
D01660

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8229770.935715%
B82291251.519018%
C8229322339.166363%
D82302803.402187%

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 8724 8229 0 0 0.00% 0.00%
B 8724 8229 1 1 0.01% 0.01%
C 8724 8229 2249 2249 25.78% 27.33%
D 8725 8231 171 171 1.96% 2.08%

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 13 254 14994 68.92 999 975 203.4
A 8 192 12273 55.54 999 975 203.4
A 3 137 10441 46.54 999 975 203.4
B 6 159 2228370 11682.82 980 951 190.7
B 0 190 29056 147.41 980 951 190.7
B 12 111 23912 120.43 980 951 190.7
C 3 233 9719197 47654.68 860 864 203.9
C 14 238 136595 665.57 860 864 203.9
C 2 114 17783 82.96 860 864 203.9
D 1 52 998110 4005.78 951 930 248.9
D 8 195 353968 1418.19 951 930 248.9
D 13 104 237927 952.04 951 930 248.9

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