ASTROSAT CZTI

Data Quality Report

Orbit 13893

Creation date: 2024-06-27T16:47:26.289063
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_010T01_9000002046_13893cztM0_level2.evt modeM0/AS1A04_010T01_9000002046_13893cztM0_level2_quad_clean.evt
Size (bytes)530,170,560100,926,720
Size505.6 MB 96.3 MB
Events in quadrant A3,228,524665,974
Events in quadrant B3,327,500673,539
Events in quadrant C3,880,669648,342
Events in quadrant D5,175,172611,681

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139092
B0141452
C0156762
D0198915

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6556801.220256%
B6556821.250763%
C65562553.889567%
D65555538.436308%

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 8838 6559 0 0 0.00% 0.00%
B 8838 6559 7 7 0.08% 0.11%
C 8838 6559 161 161 1.82% 2.45%
D 8838 6559 457 457 5.17% 6.97%

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 1 162 14240 79.1 833 815 169.7
A 0 226 7692 40.52 833 815 169.7
A 12 194 6235 31.93 833 815 169.7
B 10 244 35213 218.8 829 808 157.2
B 4 48 27027 166.74 829 808 157.2
B 12 111 18060 109.71 829 808 157.2
C 3 233 742074 3977.08 804 808 186.4
C 0 207 6321 29.58 804 808 186.4
C 13 61 5721 26.36 804 808 186.4
D 1 52 1693385 9015.31 792 775 187.7
D 13 189 99879 527.86 792 775 187.7
D 8 195 92756 489.92 792 775 187.7

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