ASTROSAT CZTI

Data Quality Report

Orbit 05523

Creation date: 2024-06-27T14:56:15.206933
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/AS1A02_199T01_9000000708_05523cztM0_level2.evt modeM0/AS1A02_199T01_9000000708_05523cztM0_level2_quad_clean.evt
Size (bytes)1,160,219,520137,712,960
Size1.1 GB 131.3 MB
Events in quadrant A5,667,823877,356
Events in quadrant B6,756,419877,169
Events in quadrant C5,504,866844,410
Events in quadrant D16,354,255696,088

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A026029100
B028778145
C025771103
D057824649

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02602
B02602
C02600
D02604

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0161

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A126571100.869084%
B126471431.130703%
C12654840.663822%
D12594357028.346832%

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 14158 12704 9 9 0.06% 0.07%
B 14158 12704 3 3 0.02% 0.02%
C 14158 12705 0 0 0.00% 0.00%
D 14158 12700 2884 2884 20.37% 22.71%

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 7 16 88792 299.68 1428 1393 291.6
A 0 50 57937 193.88 1428 1393 291.6
A 12 194 13935 43.0 1428 1393 291.6
B 15 255 713623 2569.71 1443 1407 277.2
B 15 204 261817 939.57 1443 1407 277.2
B 10 16 47260 165.44 1443 1407 277.2
C 1 16 59098 181.75 1377 1382 317.6
C 8 208 37975 115.23 1377 1382 317.6
C 9 247 13955 39.59 1377 1382 317.6
D 2 63 10751664 34931.32 1258 1216 307.8
D 2 152 342355 1108.46 1258 1216 307.8
D 2 33 150261 484.29 1258 1216 307.8

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