ASTROSAT CZTI

Data Quality Report

Orbit 43014

Creation date: 2024-06-27T22:46:55.685973
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_148T01_9000005838_43014cztM0_level2.fits modeM0/AS1T05_148T01_9000005838_43014cztM0_level2_quad_clean.evt
Size (bytes)352,843,200105,747,840
Size336.5 MB 100.8 MB
Events in quadrant A3,272,696734,442
Events in quadrant B3,141,188740,241
Events in quadrant C2,693,831711,825
Events in quadrant D3,529,021633,900

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0270
C0270
D0270

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133342
B0129182
C0113002
D0141822

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5454520.953429%
B5454841.540154%
C545480.146681%
D54531462.677425%

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 7067 5455 23 23 0.33% 0.42%
B 7067 5455 63 63 0.89% 1.15%
C 7067 5455 1 1 0.01% 0.02%
D 7066 5454 149 149 2.11% 2.73%

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 589205 4203.01 642 631 140.0
A 15 237 146675 1042.9 642 631 140.0
A 13 248 51265 361.57 642 631 140.0
B 0 186 322742 2472.33 638 624 130.3
B 5 255 251214 1923.34 638 624 130.3
B 4 171 46382 351.2 638 624 130.3
C 15 214 235724 1517.56 625 633 154.9
C 15 111 9806 59.21 625 633 154.9
C 12 249 8685 51.98 625 633 154.9
D 12 16 257505 1589.48 616 598 161.6
D 1 52 222779 1374.63 616 598 161.6
D 1 47 181592 1119.81 616 598 161.6

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