ASTROSAT CZTI

Data Quality Report

Orbit 53073

Creation date: 2025-07-21T05:06:25.236509
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/AS1C09_011T07_9000006488_53073cztM0_level2.fits modeM0/AS1C09_011T07_9000006488_53073cztM0_level2_quad_clean.evt
Size (bytes)900,967,68078,217,920
Size859.2 MB 74.6 MB
Events in quadrant A16,458,33285,681
Events in quadrant B3,624,976697,670
Events in quadrant C7,667,170525,941
Events in quadrant D5,065,024577,325

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0534752
B0157902
C0276678
D0199282

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6909616489.216963%
B6909851.230279%
C6908134119.412276%
D69084416.383903%

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 7774 6909 5456 5456 70.18% 78.97%
B 7774 6910 30 30 0.39% 0.43%
C 7773 6909 1153 1153 14.83% 16.69%
D 7773 6909 322 322 4.14% 4.66%

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 9 191 14582351 170764.17 337 330 85.4
A 7 206 186245 2177.18 337 330 85.4
A 0 8 71906 838.2 337 330 85.4
B 4 81 364074 2387.77 714 689 152.2
B 10 247 156717 1025.25 714 689 152.2
B 10 128 72131 469.44 714 689 152.2
C 15 224 2514668 14101.07 648 641 178.3
C 1 241 1895354 10627.36 648 641 178.3
C 13 3 153259 856.03 648 641 178.3
D 12 17 1212606 6111.73 690 660 198.3
D 11 245 214115 1076.43 690 660 198.3
D 3 224 106668 534.59 690 660 198.3

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