ASTROSAT CZTI

Data Quality Report

Orbit 48422

Creation date: 2024-09-10T21:20:40.436145
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_029T01_9000006426_48422cztM0_level2.fits modeM0/AS1A13_029T01_9000006426_48422cztM0_level2_quad_clean.evt
Size (bytes)546,373,440115,283,520
Size521.1 MB 109.9 MB
Events in quadrant A7,831,372752,574
Events in quadrant B3,433,177792,469
Events in quadrant C3,278,740760,463
Events in quadrant D5,108,641670,671

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0286950
B0156670
C0153940
D0206590

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73894095.535255%
B7389851.150359%
C7389180.243605%
D73894355.887130%

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 7389 7389 140 140 1.89% 1.89%
B 7389 7389 11 11 0.15% 0.15%
C 7389 7389 9 9 0.12% 0.12%
D 7389 7389 306 306 4.14% 4.14%

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 4160443 24207.29 818 802 171.8
A 13 248 481896 2799.76 818 802 171.8
A 7 3 19946 111.41 818 802 171.8
B 12 16 130313 782.83 821 797 165.4
B 5 171 31814 187.48 821 797 165.4
B 12 111 21108 122.77 821 797 165.4
C 12 2 48073 244.07 810 813 193.6
C 15 208 21194 105.25 810 813 193.6
C 9 160 14705 71.74 810 813 193.6
D 12 2 1165123 5811.19 793 766 200.4
D 5 222 281974 1403.48 793 766 200.4
D 12 1 117617 583.19 793 766 200.4

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