ASTROSAT CZTI

Data Quality Report

Orbit 47833

Creation date: 2024-08-02T10:37:45.211703
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_216T01_9000006356_47833cztM0_level2.fits modeM0/AS1T05_216T01_9000006356_47833cztM0_level2_quad_clean.evt
Size (bytes)504,144,000108,728,640
Size480.8 MB 103.7 MB
Events in quadrant A7,284,405702,358
Events in quadrant B3,289,123735,811
Events in quadrant C3,191,094718,811
Events in quadrant D4,365,838657,869

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260852
B0147992
C0145152
D0179282

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68503695.386861%
B6851831.211502%
C6851490.715224%
D68511141.663991%

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 8640 6850 225 225 2.60% 3.28%
B 8641 6851 9 9 0.10% 0.13%
C 8641 6852 25 25 0.29% 0.36%
D 8641 6853 107 107 1.24% 1.56%

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 4091501 26750.75 738 722 152.9
A 0 31 243379 1586.8 738 722 152.9
A 13 248 72555 469.74 738 722 152.9
B 0 186 103026 690.64 747 725 148.1
B 5 32 65209 435.34 747 725 148.1
B 0 200 54805 365.1 747 725 148.1
C 12 2 168830 958.92 738 743 175.3
C 14 254 78108 441.36 738 743 175.3
C 1 3 59893 337.45 738 743 175.3
D 12 33 774901 4180.22 734 710 185.2
D 12 128 152482 819.49 734 710 185.2
D 8 176 114499 614.4 734 710 185.2

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