ASTROSAT CZTI

Data Quality Report

Orbit 43709

Creation date: 2024-06-27T22:54:49.586765
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/AS1A13_008T02_9000005900_43709cztM0_level2.fits modeM0/AS1A13_008T02_9000005900_43709cztM0_level2_quad_clean.evt
Size (bytes)172,848,96024,436,800
Size164.8 MB 23.3 MB
Events in quadrant A2,133,276162,121
Events in quadrant B866,818172,336
Events in quadrant C988,326162,679
Events in quadrant D2,290,700131,134

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A074180
B035540
C039490
D078610

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A15091399.211398%
B1510241.589404%
C1510644.238411%
D151033322.052980%

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 1509 1509 85 85 5.63% 5.63%
B 1510 1510 19 19 1.26% 1.26%
C 1510 1510 48 48 3.18% 3.18%
D 1510 1510 337 337 22.32% 22.32%

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 15 222 801911 21500.49 170 166 37.3
A 14 63 261336 7003.83 170 166 37.3
A 15 223 207046 5547.92 170 166 37.3
B 5 235 128167 3628.92 169 165 35.3
B 4 67 46761 1321.02 169 165 35.3
B 5 255 8385 233.04 169 165 35.3
C 15 157 237145 5908.68 162 163 40.1
C 3 233 48492 1204.99 162 163 40.1
C 15 158 35569 882.78 162 163 40.1
D 12 34 486453 11671.86 157 152 41.7
D 8 48 319038 7653.68 157 152 41.7
D 5 235 269678 6468.98 157 152 41.7

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