ASTROSAT CZTI

Data Quality Report

Orbit 14469

Creation date: 2024-06-27T16:55:35.324551
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_025T01_9000002130_14469cztM0_level2.evt modeM0/AS1G08_025T01_9000002130_14469cztM0_level2_quad_clean.evt
Size (bytes)483,433,92079,545,600
Size461.0 MB 75.9 MB
Events in quadrant A3,325,903501,861
Events in quadrant B3,533,224482,789
Events in quadrant C3,595,461477,528
Events in quadrant D3,734,377482,552

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141643
B0148602
C0151282
D0155182

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6652660.992183%
B66521141.713770%
C6652550.826819%
D66521402.104630%

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 7648 6654 0 0 0.00% 0.00%
B 7648 6654 30 30 0.39% 0.45%
C 7648 6654 0 0 0.00% 0.00%
D 7648 6654 64 64 0.84% 0.96%

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 62290 359.66 834 817 170.9
A 12 189 40966 234.9 834 817 170.9
A 4 2 10285 55.39 834 817 170.9
B 0 182 130615 821.62 823 802 158.0
B 0 219 55254 344.64 823 802 158.0
B 4 142 44079 273.91 823 802 158.0
C 3 233 390424 2083.27 803 807 187.0
C 0 207 55040 289.98 803 807 187.0
C 14 234 10082 49.59 803 807 187.0
D 10 199 271705 1398.26 807 788 193.8
D 15 0 129555 664.59 807 788 193.8
D 2 120 83493 426.86 807 788 193.8

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