ASTROSAT CZTI

Data Quality Report

Orbit 14716

Creation date: 2024-06-27T16:58:50.764953
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/AS1A04_048T01_9000002176_14716cztM0_level2.evt modeM0/AS1A04_048T01_9000002176_14716cztM0_level2_quad_clean.evt
Size (bytes)469,615,68098,850,240
Size447.9 MB 94.3 MB
Events in quadrant A3,381,429643,698
Events in quadrant B3,294,265641,828
Events in quadrant C3,946,883630,764
Events in quadrant D3,158,970624,718

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141223
B0138782
C0163772
D0136622

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64961462.247537%
B64961181.816502%
C64961081.662562%
D6496961.477833%

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 8567 6497 25 25 0.29% 0.38%
B 8567 6497 1 1 0.01% 0.02%
C 8567 6497 2 2 0.02% 0.03%
D 8567 6497 1 1 0.01% 0.02%

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 9 143 80172 466.07 841 825 170.2
A 12 189 43288 249.42 841 825 170.2
A 3 1 14733 81.69 841 825 170.2
B 0 205 25709 158.3 829 808 157.3
B 12 111 17742 107.65 829 808 157.3
B 11 111 15333 92.34 829 808 157.3
C 3 233 770827 4140.99 809 815 185.9
C 3 234 12476 62.71 809 815 185.9
C 0 207 6928 32.87 809 815 185.9
D 2 234 23886 117.43 819 800 196.6
D 2 120 10711 50.41 819 800 196.6
D 2 14 8399 38.65 819 800 196.6

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