ASTROSAT CZTI

Data Quality Report

Orbit 14073

Creation date: 2024-06-27T16:50:02.024008
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_055T01_9000002076_14073cztM0_level2.evt modeM0/AS1G08_055T01_9000002076_14073cztM0_level2_quad_clean.evt
Size (bytes)603,607,680132,765,120
Size575.6 MB 126.6 MB
Events in quadrant A5,579,171878,382
Events in quadrant B4,175,840900,479
Events in quadrant C3,574,067866,416
Events in quadrant D4,423,165833,949

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0219173
B0176312
C0160332
D0185992

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78012022.589412%
B78011371.756185%
C7801260.333291%
D7801740.948596%

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 8593 7805 97 97 1.13% 1.24%
B 8593 7805 29 29 0.34% 0.37%
C 8593 7805 1 1 0.01% 0.01%
D 8593 7805 29 29 0.34% 0.37%

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 15 222 1870391 10027.27 923 905 186.4
A 12 189 66205 350.25 923 905 186.4
A 12 96 41807 219.38 923 905 186.4
B 10 16 152978 868.04 933 911 175.2
B 0 189 109414 619.36 933 911 175.2
B 4 80 49392 276.74 933 911 175.2
C 3 233 61033 289.74 894 895 207.6
C 0 207 13379 60.15 894 895 207.6
C 15 176 12223 54.58 894 895 207.6
D 10 172 418512 1903.34 882 859 219.4
D 2 152 159453 722.75 882 859 219.4
D 8 195 120938 547.23 882 859 219.4

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