ASTROSAT CZTI

Data Quality Report

Orbit 01141

Creation date: 2024-06-27T14:08:08.739474
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/AS1P01_997T03_9000000216_01141cztM0_level2.evt modeM0/AS1P01_997T03_9000000216_01141cztM0_level2_quad_clean.evt
Size (bytes)409,645,44042,949,440
Size390.7 MB 41.0 MB
Events in quadrant A3,207,449274,759
Events in quadrant B3,256,132281,779
Events in quadrant C3,005,824272,427
Events in quadrant D2,741,528264,595

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0115960
B0117170
C0109880
D0102260

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0580
B0580
C0580
D0580

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A289500.000000%
B289500.000000%
C289500.000000%
D289500.000000%

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 2895 2895 17 17 0.59% 0.59%
B 2895 2895 20 20 0.69% 0.69%
C 2895 2895 10 10 0.35% 0.35%
D 2895 2895 4 4 0.14% 0.14%

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 15 127 85807 435.52 812 819 195.1
A 12 243 6196 27.55 812 819 195.1
A 11 79 4554 19.14 812 819 195.1
B 0 220 26381 129.1 835 843 197.8
B 4 187 20483 99.29 835 843 197.8
B 8 38 15303 73.1 835 843 197.8
C 15 241 131160 646.68 725 748 201.7
C 9 83 9668 44.23 725 748 201.7
C 12 206 9598 43.88 725 748 201.7
D 2 16 86945 390.95 708 732 220.5
D 10 154 4047 15.03 708 732 220.5
D 13 252 3540 12.73 708 732 220.5

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