ASTROSAT CZTI

Data Quality Report

Orbit 20230626_T05_124T01_9000005712_level2

Creation date: 2023-06-28T14:55:06.925847
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/AS1T05_124T01_9000005712cztM0_level2.fits modeM0/AS1T05_124T01_9000005712cztM0_level2_quad_clean.evt
Size (bytes)564,503,040572,215,680
Size538.4 MB 545.7 MB
Events in quadrant A3,332,5023,374,286
Events in quadrant B3,296,9323,497,312
Events in quadrant C3,265,4543,219,287
Events in quadrant D2,796,2342,837,835

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013060
B013110
C013140
D013110

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02410
B02410
C02410
D02400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01863070
B01320520
C01444930
D02052730

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6416339246.115674%
B641711490.232192%
C6413219012.964199%
D6416652498.180345%

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 88429 64261 0 0 0.00% 0.00%
B 88429 64276 0 0 0.00% 0.00%
C 88429 64028 0 0 0.00% 0.00%
D 88429 64265 0 0 0.00% 0.00%

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 9 19 2850 9.35 869 813 217.9
A 7 110 2846 9.33 869 813 217.9
A 0 29 2618 8.28 869 813 217.9
B 2 9 2832 11.62 871 829 172.3
B 3 80 2398 9.11 871 829 172.3
B 3 17 2326 8.69 871 829 172.3
C 1 81 2678 8.4 861 802 223.2
C 3 203 2511 7.66 861 802 223.2
C 3 202 2509 7.65 861 802 223.2
D 4 160 2123 6.55 800 729 212.6
D 10 189 2063 6.27 800 729 212.6
D 7 3 2016 6.05 800 729 212.6

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