ASTROSAT CZTI

Data Quality Report

Orbit 00572

Creation date: 2024-06-27T13:59:53.121765
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/AS1P01_014T01_9000000080_00572cztM0_level2.evt modeM0/AS1P01_014T01_9000000080_00572cztM0_level2_quad_clean.evt
Size (bytes)825,264,00069,171,840
Size787.0 MB 66.0 MB
Events in quadrant A5,922,223444,927
Events in quadrant B5,966,132442,417
Events in quadrant C6,870,544416,153
Events in quadrant D5,896,379434,573

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0212103
B0213502
C0241372
D0211892

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0240

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A508680.157295%
B508640.078647%
C508654010.617381%
D5086480.943767%

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 7242 5087 105 105 1.45% 2.06%
B 7242 5087 79 79 1.09% 1.55%
C 7242 5086 617 617 8.52% 12.13%
D 7242 5087 219 219 3.02% 4.31%

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 0 149 53557 155.67 1491 1470 334.6
A 0 69 48192 139.64 1491 1470 334.6
A 0 238 28182 79.83 1491 1470 334.6
B 8 4 71026 197.2 1509 1511 352.5
B 0 220 46481 127.57 1509 1511 352.5
B 4 206 27521 73.78 1509 1511 352.5
C 15 241 1616456 4370.35 1321 1373 369.6
C 3 159 36615 95.36 1321 1373 369.6
C 5 249 14251 34.85 1321 1373 369.6
D 1 4 369178 890.93 1329 1381 412.8
D 13 221 159497 383.01 1329 1381 412.8
D 13 216 46957 110.4 1329 1381 412.8

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