ASTROSAT CZTI

Data Quality Report

Orbit 12003

Creation date: 2024-06-27T16:21:09.379334
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_024T03_9000001774_12003cztM0_level2.evt modeM0/AS1G08_024T03_9000001774_12003cztM0_level2_quad_clean.evt
Size (bytes)633,058,560122,644,800
Size603.7 MB 117.0 MB
Events in quadrant A4,383,047799,001
Events in quadrant B5,520,939780,201
Events in quadrant C3,829,983789,647
Events in quadrant D4,865,026758,129

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01720
B01720
C01720
D01720

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0188443
B0223102
C0175682
D0204092

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A84571812.140239%
B84576387.544046%
C8457540.638524%
D84571792.116590%

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 9263 8459 1 1 0.01% 0.01%
B 9263 8458 245 245 2.64% 2.90%
C 9263 8459 0 0 0.00% 0.00%
D 9263 8460 103 103 1.11% 1.22%

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 1 162 200789 969.1 1005 982 206.2
A 1 178 108349 520.75 1005 982 206.2
A 1 161 95025 456.12 1005 982 206.2
B 4 239 910786 4799.98 989 964 189.5
B 3 64 469729 2473.08 989 964 189.5
B 15 204 116939 611.85 989 964 189.5
C 13 61 7076 26.62 979 979 229.0
C 14 234 6308 23.27 979 979 229.0
C 0 207 5834 21.2 979 979 229.0
D 1 52 615914 2630.11 965 937 233.8
D 8 195 219538 934.91 965 937 233.8
D 13 104 157898 671.29 965 937 233.8

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