ASTROSAT CZTI

Data Quality Report

Orbit 44315

Creation date: 2024-06-27T23:02:01.678043
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_059T01_9000005990_44315cztM0_level2.fits modeM0/AS1A13_059T01_9000005990_44315cztM0_level2_quad_clean.evt
Size (bytes)271,837,44062,161,920
Size259.2 MB 59.3 MB
Events in quadrant A2,783,587426,678
Events in quadrant B2,241,624423,191
Events in quadrant C1,735,760421,194
Events in quadrant D3,019,344355,636

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0112041
B090381
C075951
D0113691

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0740
B0740
C0740
D0740

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A36111443.987815%
B36112206.092495%
C3611421.163113%
D361142011.631127%

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 4811 3611 3 3 0.06% 0.08%
B 4811 3612 89 89 1.85% 2.46%
C 4811 3612 1 1 0.02% 0.03%
D 4811 3611 309 309 6.42% 8.56%

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 907108 10022.34 436 426 90.5
A 15 223 168524 1858.13 436 426 90.5
A 0 243 14590 156.57 436 426 90.5
B 5 172 296133 3488.62 427 413 84.8
B 5 255 77333 907.43 427 413 84.8
B 4 158 73761 865.29 427 413 84.8
C 14 254 48246 471.23 428 429 101.5
C 1 3 13079 124.67 428 429 101.5
C 3 233 3375 29.03 428 429 101.5
D 13 249 815896 7771.63 412 399 104.9
D 13 153 220669 2099.16 412 399 104.9
D 1 52 96177 912.76 412 399 104.9

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