ASTROSAT CZTI

Data Quality Report

Orbit 11605

Creation date: 2024-06-27T16:15:48.490132
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/AS1C03_020T01_9000001706_11605cztM0_level2.evt modeM0/AS1C03_020T01_9000001706_11605cztM0_level2_quad_clean.evt
Size (bytes)600,261,12060,742,080
Size572.5 MB 57.9 MB
Events in quadrant A6,960,900335,225
Events in quadrant B4,643,436348,180
Events in quadrant C3,011,763360,686
Events in quadrant D3,128,783347,629

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0251413
B0178962
C0131962
D0135182

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6413127119.819117%
B64134356.783097%
C6413370.576953%
D6413490.764073%

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 7554 6415 799 799 10.58% 12.46%
B 7554 6415 258 258 3.42% 4.02%
C 7554 6415 0 0 0.00% 0.00%
D 7554 6415 15 15 0.20% 0.23%

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 5 3782917 25410.52 734 719 148.8
A 1 162 129305 863.9 734 719 148.8
A 1 178 72565 482.69 734 719 148.8
B 4 239 1147425 7781.61 778 761 147.4
B 10 16 317092 2146.72 778 761 147.4
B 0 219 40946 272.71 778 761 147.4
C 13 61 5611 27.16 771 776 178.0
C 14 234 2695 10.78 771 776 178.0
C 12 4 2065 7.24 771 776 178.0
D 1 52 81843 442.35 767 746 183.3
D 13 104 54489 293.14 767 746 183.3
D 8 195 50944 273.81 767 746 183.3

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