ASTROSAT CZTI

Data Quality Report

Orbit 19409

Creation date: 2024-06-27T18:02:40.571319
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/AS1T03_028T01_9000002880_19409cztM0_level2.evt modeM0/AS1T03_028T01_9000002880_19409cztM0_level2_quad_clean.evt
Size (bytes)224,723,52023,037,120
Size214.3 MB 22.0 MB
Events in quadrant A955,819178,993
Events in quadrant B947,861182,074
Events in quadrant C932,202167,578
Events in quadrant D3,859,64950,707

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A039081
B038651
C037621
D0125412

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A160670.435866%
B1606120.747198%
C1606150.933998%
D1544152598.769430%

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 1606 1606 0 0 0.00% 0.00%
B 1606 1606 0 0 0.00% 0.00%
C 1606 1606 0 0 0.00% 0.00%
D 1543 1543 1507 1507 97.67% 97.67%

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 5 16 7834 151.23 245 240 50.2
A 13 254 2171 38.46 245 240 50.2
A 0 226 2112 37.28 245 240 50.2
B 0 198 11601 250.13 237 234 45.4
B 0 214 4998 104.83 237 234 45.4
B 12 111 4856 101.71 237 234 45.4
C 14 238 36356 676.85 226 228 53.4
C 3 233 5848 105.29 226 228 53.4
C 0 207 5349 95.94 226 228 53.4
D 10 66 3466502 144714.86 92 89 24.0
D 5 222 26353 1096.46 92 89 24.0
D 7 96 5242 215.13 92 89 24.0

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