ASTROSAT CZTI

Data Quality Report

Orbit 19563

Creation date: 2024-06-27T18:04:06.111827
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/AS1A05_115T02_9000002906_19563cztM0_level2.evt modeM0/AS1A05_115T02_9000002906_19563cztM0_level2_quad_clean.evt
Size (bytes)254,617,92056,113,920
Size242.8 MB 53.5 MB
Events in quadrant A1,666,687381,738
Events in quadrant B1,531,986384,528
Events in quadrant C2,054,228359,736
Events in quadrant D2,247,365353,942

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A068241
B066571
C081211
D087461

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B020
C020
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0660
B0660
C0660
D0660

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3075812.634146%
B30751003.252033%
C30751575.105691%
D30751886.113821%

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 3200 3076 0 0 0.00% 0.00%
B 3200 3075 8 8 0.25% 0.26%
C 3200 3075 50 50 1.56% 1.63%
D 3200 3075 132 132 4.12% 4.29%

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 15 191 233509 3043.14 371 363 76.6
A 13 254 4521 54.27 371 363 76.6
A 0 226 3213 37.2 371 363 76.6
B 3 64 33292 454.02 366 356 72.5
B 7 220 31432 428.38 366 356 72.5
B 12 111 8553 113.0 366 356 72.5
C 3 233 597316 6969.04 353 354 85.7
C 14 238 53552 621.04 353 354 85.7
C 9 221 13197 149.93 353 354 85.7
D 12 218 330567 3729.81 361 351 88.5
D 13 104 275753 3110.69 361 351 88.5
D 12 233 125657 1415.34 361 351 88.5

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