ASTROSAT CZTI

Data Quality Report

Orbit 37029

Creation date: 2024-06-27T21:34:29.889122
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/AS1T05_046T01_9000005266_37029cztM0_level2.evt modeM0/AS1T05_046T01_9000005266_37029cztM0_level2_quad_clean.evt
Size (bytes)467,945,28058,890,240
Size446.3 MB 56.2 MB
Events in quadrant A2,539,401382,985
Events in quadrant B3,737,875378,649
Events in quadrant C3,080,771365,952
Events in quadrant D4,484,891314,901

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0104503
B0141592
C0121122
D0164642

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A484470.144509%
B48441994.108175%
C48441372.828241%
D484465113.439306%

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 6967 4845 5 5 0.07% 0.10%
B 6966 4844 163 163 2.34% 3.36%
C 6967 4845 116 116 1.66% 2.39%
D 6967 4845 638 638 9.16% 13.17%

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 10 83 224521 1883.19 593 585 118.9
A 13 6 16224 131.52 593 585 118.9
A 13 254 7570 58.74 593 585 118.9
B 5 184 1085181 9687.15 583 569 112.0
B 5 172 185290 1649.82 583 569 112.0
B 0 213 44602 393.28 583 569 112.0
C 14 254 278277 2144.03 559 564 129.5
C 15 214 207354 1596.48 559 564 129.5
C 0 207 185239 1425.75 559 564 129.5
D 13 249 772185 5893.27 532 518 130.9
D 2 250 621410 4741.79 532 518 130.9
D 2 153 210291 1602.05 532 518 130.9

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