ASTROSAT CZTI

Data Quality Report

Orbit 13244

Creation date: 2024-06-27T16:38:18.349817
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/AS1G08_077T01_9000001970_13244cztM0_level2.evt modeM0/AS1G08_077T01_9000001970_13244cztM0_level2_quad_clean.evt
Size (bytes)569,675,520101,914,560
Size543.3 MB 97.2 MB
Events in quadrant A3,309,073666,252
Events in quadrant B7,197,591607,418
Events in quadrant C3,148,923704,001
Events in quadrant D3,158,676657,707

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0270

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142253
B0258182
C0136132
D0138642

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6458610.944565%
B6458166325.751007%
C6458580.898111%
D6458500.774234%

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 9169 6461 2 2 0.02% 0.03%
B 9168 6460 1153 1153 12.58% 17.85%
C 9169 6461 0 0 0.00% 0.00%
D 9169 6461 7 7 0.08% 0.11%

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 12 189 144458 897.18 797 782 160.1
A 15 239 63646 392.55 797 782 160.1
A 1 162 19916 119.48 797 782 160.1
B 4 239 4285927 32729.18 714 696 130.9
B 3 64 37843 283.72 714 696 130.9
B 0 230 24345 180.62 714 696 130.9
C 15 208 14439 74.76 803 809 182.3
C 13 61 5834 27.56 803 809 182.3
C 8 222 2834 11.11 803 809 182.3
D 1 52 148382 796.51 786 767 185.3
D 2 234 23612 123.27 786 767 185.3
D 14 34 11472 57.76 786 767 185.3

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