ASTROSAT CZTI

Data Quality Report

Orbit 11610

Creation date: 2024-06-27T16:15:53.140791
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_11610cztM0_level2.evt modeM0/AS1C03_020T01_9000001706_11610cztM0_level2_quad_clean.evt
Size (bytes)589,769,28086,016,960
Size562.4 MB 82.0 MB
Events in quadrant A6,734,897525,160
Events in quadrant B4,293,210560,169
Events in quadrant C2,728,455568,275
Events in quadrant D3,704,650538,092

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240762
B0165791
C0121461
D0150071

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5897135723.011701%
B58974387.427506%
C5897550.932678%
D58972203.730711%

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 6878 5898 944 944 13.72% 16.01%
B 6878 5899 218 218 3.17% 3.70%
C 6878 5899 0 0 0.00% 0.00%
D 6878 5899 109 109 1.58% 1.85%

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 3707651 26587.24 681 667 139.4
A 1 162 141290 1008.58 681 667 139.4
A 1 178 82230 584.99 681 667 139.4
B 4 239 1173104 8534.41 711 696 137.4
B 3 64 188917 1370.13 711 696 137.4
B 0 219 46055 330.19 711 696 137.4
C 8 208 5491 29.65 698 701 161.5
C 13 61 5078 27.1 698 701 161.5
C 9 54 3695 18.53 698 701 161.5
D 1 52 879151 5238.44 695 676 167.7
D 13 104 29596 172.45 695 676 167.7
D 2 136 28203 164.15 695 676 167.7

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