ASTROSAT CZTI

Data Quality Report

Orbit 13313

Creation date: 2024-06-27T16:39:22.363554
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/AS1T02_014T01_9000001980_13313cztM0_level2.evt modeM0/AS1T02_014T01_9000001980_13313cztM0_level2_quad_clean.evt
Size (bytes)128,655,36037,304,640
Size122.7 MB 35.6 MB
Events in quadrant A1,090,076256,063
Events in quadrant B950,861261,756
Events in quadrant C844,761253,985
Events in quadrant D901,310241,556

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A044092
B038961
C034601
D036351

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1569201.274697%
B1569221.402167%
C156960.382409%
D1569171.083493%

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 1570 1570 2 2 0.13% 0.13%
B 1570 1570 8 8 0.51% 0.51%
C 1570 1570 1 1 0.06% 0.06%
D 1570 1570 4 4 0.25% 0.25%

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 8 15 211158 4514.63 224 220 46.7
A 1 162 6388 132.01 224 220 46.7
A 15 69 4311 87.56 224 220 46.7
B 0 189 19577 445.7 222 218 43.4
B 10 246 18275 415.72 222 218 43.4
B 3 64 15672 355.79 222 218 43.4
C 15 208 10040 195.64 212 214 50.2
C 8 128 3424 63.91 212 214 50.2
C 8 112 1929 34.15 212 214 50.2
D 8 195 35355 674.33 214 209 52.1
D 2 136 20547 390.22 214 209 52.1
D 12 222 15989 302.76 214 209 52.1

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