ASTROSAT CZTI

Data Quality Report

Orbit 09648

Creation date: 2024-06-27T15:48:52.011634
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/AS1A03_077T01_9000001372_09648cztM0_level2.evt modeM0/AS1A03_077T01_9000001372_09648cztM0_level2_quad_clean.evt
Size (bytes)1,128,908,160209,862,720
Size1.1 GB 200.1 MB
Events in quadrant A7,851,5371,318,583
Events in quadrant B8,066,1101,332,534
Events in quadrant C7,485,3021,308,559
Events in quadrant D9,633,3421,223,632

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0192
B0191
C0191
D0192

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A037618
B037648
C037632
D037628

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0378812697
B0383532862
C0372082778
D0453115088

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A170761020.597330%
B17065860.503955%
C17021280.164503%
D168073942.344261%

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 20401 18145 30 30 0.15% 0.17%
B 20401 18142 12 12 0.06% 0.07%
C 20401 18143 1 1 0.00% 0.01%
D 20399 17978 290 290 1.42% 1.61%

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 170091 416.95 1975 1933 403.3
A 14 111 50602 120.67 1975 1933 403.3
A 13 248 19395 43.3 1975 1933 403.3
B 0 214 168112 438.36 1987 1938 379.1
B 0 219 52077 132.26 1987 1938 379.1
B 12 111 42136 106.04 1987 1938 379.1
C 13 61 14520 28.45 1909 1912 443.2
C 14 234 10600 19.6 1909 1912 443.2
C 8 128 9528 17.18 1909 1912 443.2
D 1 52 1060964 2333.23 1854 1810 453.9
D 7 71 697056 1531.57 1854 1810 453.9
D 8 195 399788 876.71 1854 1810 453.9

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