ASTROSAT CZTI

Data Quality Report

Orbit 45567

Creation date: 2024-06-27T23:13:44.785304
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/AS1A13_071T04_9000006110_45567cztM0_level2.fits modeM0/AS1A13_071T04_9000006110_45567cztM0_level2_quad_clean.evt
Size (bytes)620,496,000130,639,680
Size591.8 MB 124.6 MB
Events in quadrant A6,781,512896,423
Events in quadrant B5,742,239851,851
Events in quadrant C3,994,134866,803
Events in quadrant D5,809,012764,906

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260383
B0229211
C0178952
D0231405

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01660
B01660
C01660
D01660

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A82781361.642909%
B82807839.456522%
C82801001.207729%
D82804104.951691%

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 8295 8281 1 1 0.01% 0.01%
B 8295 8281 374 374 4.51% 4.52%
C 8296 8282 33 33 0.40% 0.40%
D 8296 8282 236 236 2.84% 2.85%

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 10 83 3119350 16160.57 929 909 193.0
A 10 248 23877 119.03 929 909 193.0
A 13 6 14209 68.92 929 909 193.0
B 15 201 943480 5261.75 905 874 179.1
B 4 171 418110 2329.07 905 874 179.1
B 3 112 220774 1227.51 905 874 179.1
C 12 2 335158 1538.07 916 919 217.3
C 14 254 41504 186.76 916 919 217.3
C 12 249 24574 108.85 916 919 217.3
D 1 52 968310 4313.63 897 870 224.3
D 5 171 466963 2078.22 897 870 224.3
D 3 13 218553 970.61 897 870 224.3

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