ASTROSAT CZTI

Data Quality Report

Orbit 11351

Creation date: 2024-06-27T16:11:41.416701
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_062T01_9000001660_11351cztM0_level2.evt modeM0/AS1G08_062T01_9000001660_11351cztM0_level2_quad_clean.evt
Size (bytes)656,542,08081,705,600
Size626.1 MB 77.9 MB
Events in quadrant A3,590,065506,594
Events in quadrant B5,151,156483,942
Events in quadrant C3,320,889510,503
Events in quadrant D7,322,829460,466

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0156614
B0202552
C0150362
D0269232

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7353430.584795%
B73536729.139127%
C7353200.271998%
D7353128817.516660%

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 7785 7355 0 0 0.00% 0.00%
B 7785 7355 363 363 4.66% 4.94%
C 7785 7355 0 0 0.00% 0.00%
D 7785 7354 1058 1058 13.59% 14.39%

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 15 174 154123 877.47 860 838 174.7
A 13 251 78946 447.12 860 838 174.7
A 8 5 11693 62.14 860 838 174.7
B 4 239 1275395 7965.31 832 811 160.0
B 3 64 470392 2934.57 832 811 160.0
B 15 204 52564 323.42 832 811 160.0
C 4 175 10729 50.32 846 852 196.3
C 13 61 6447 28.5 846 852 196.3
C 8 128 4497 18.57 846 852 196.3
D 10 253 2318900 12330.25 773 750 188.0
D 13 152 1341317 7130.48 773 750 188.0
D 2 120 281614 1493.92 773 750 188.0

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