ASTROSAT CZTI

Data Quality Report

Orbit 07207

Creation date: 2024-06-27T15:16:55.890262
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/AS1G06_083T01_9000000984_07207cztM0_level2.evt modeM0/AS1G06_083T01_9000000984_07207cztM0_level2_quad_clean.evt
Size (bytes)442,794,240114,252,480
Size422.3 MB 109.0 MB
Events in quadrant A2,989,883761,689
Events in quadrant B3,328,602788,758
Events in quadrant C3,087,304760,628
Events in quadrant D3,579,601713,359

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130733
B0140212
C0132442
D0148972

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6252220.351887%
B6252560.895713%
C6252500.799744%
D62521141.823417%

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 7587 6253 2 2 0.03% 0.03%
B 7587 6253 11 11 0.14% 0.18%
C 7587 6253 42 42 0.55% 0.67%
D 7587 6253 83 83 1.09% 1.33%

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 13 248 39141 250.6 757 744 153.2
A 14 14 18474 115.71 757 744 153.2
A 14 31 8816 52.68 757 744 153.2
B 0 214 87894 609.95 775 759 142.9
B 0 219 73883 511.88 775 759 142.9
B 0 228 73654 510.27 775 759 142.9
C 9 68 103143 600.34 747 752 170.6
C 9 243 63929 370.42 747 752 170.6
C 13 61 5746 29.28 747 752 170.6
D 2 216 467999 2624.05 732 710 178.1
D 14 34 157749 881.85 732 710 178.1
D 8 195 96004 535.12 732 710 178.1

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