ASTROSAT CZTI

Data Quality Report

Orbit 06345

Creation date: 2024-06-27T15:05:59.428805
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/AS1G06_132T01_9000000838_06345cztM0_level2.evt modeM0/AS1G06_132T01_9000000838_06345cztM0_level2_quad_clean.evt
Size (bytes)610,194,240102,366,720
Size581.9 MB 97.6 MB
Events in quadrant A3,433,471666,645
Events in quadrant B5,064,679633,536
Events in quadrant C3,220,866660,053
Events in quadrant D6,248,272613,232

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0155902
B0202681
C0153241
D0237951

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7555300.397088%
B75556118.087359%
C7555240.317670%
D75554135.466578%

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 7910 7556 2 2 0.03% 0.03%
B 7910 7556 360 360 4.55% 4.76%
C 7910 7556 1 1 0.01% 0.01%
D 7910 7556 408 408 5.16% 5.40%

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 13 251 46019 259.95 844 826 173.9
A 3 1 43853 247.49 844 826 173.9
A 15 236 37846 212.94 844 826 173.9
B 3 64 1534091 9684.79 821 803 158.3
B 15 204 151876 954.23 821 803 158.3
B 0 219 44920 278.66 821 803 158.3
C 9 54 23080 118.24 811 815 188.3
C 4 254 21750 111.18 811 815 188.3
C 13 61 6513 30.26 811 815 188.3
D 12 220 1786446 9086.59 799 772 196.5
D 12 221 607665 3088.24 799 772 196.5
D 4 95 219678 1113.92 799 772 196.5

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