ASTROSAT CZTI

Data Quality Report

Orbit 48567

Creation date: 2024-09-23T11:50:17.514048
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_037T01_9000006436_48567cztM0_level2.fits modeM0/AS1A13_037T01_9000006436_48567cztM0_level2_quad_clean.evt
Size (bytes)563,685,120127,428,480
Size537.6 MB 121.5 MB
Events in quadrant A8,092,468817,413
Events in quadrant B3,909,322863,603
Events in quadrant C3,688,703843,952
Events in quadrant D4,519,522745,770

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030138170
B01807190
C01763851
D01975685

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01740
B01742
C01740
D01742

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A84355086.022525%
B84473794.486800%
C84582302.719319%
D84473864.569670%

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 8636 8462 1 1 0.01% 0.01%
B 8634 8472 16 16 0.19% 0.19%
C 8638 8477 0 0 0.00% 0.00%
D 8638 8473 103 103 1.19% 1.22%

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 4428061 22406.08 931 905 197.6
A 12 189 39797 196.83 931 905 197.6
A 13 248 22281 108.19 931 905 197.6
B 5 255 136701 721.51 939 906 188.2
B 12 16 33131 171.22 939 906 188.2
B 12 111 25278 129.49 939 906 188.2
C 12 250 20662 88.98 936 938 221.7
C 10 20 9959 40.7 936 938 221.7
C 14 254 6302 24.2 936 938 221.7
D 2 165 289320 1253.61 918 889 230.1
D 7 96 257836 1116.77 918 889 230.1
D 13 171 185193 801.04 918 889 230.1

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