ASTROSAT CZTI

Data Quality Report

Orbit 46513

Creation date: 2024-06-27T23:24:04.840507
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_068T07_9000006222_46513cztM0_level2.fits modeM0/AS1A13_068T07_9000006222_46513cztM0_level2_quad_clean.evt
Size (bytes)479,180,160107,968,320
Size457.0 MB 103.0 MB
Events in quadrant A6,611,964700,438
Events in quadrant B3,493,643733,770
Events in quadrant C3,096,782710,977
Events in quadrant D4,004,015646,540

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0241122
B0150862
C0142382
D0166452

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68452463.593864%
B68451181.723886%
C6845420.613587%
D68451171.709277%

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 7710 6845 82 82 1.06% 1.20%
B 7710 6845 67 67 0.87% 0.98%
C 7710 6846 15 15 0.19% 0.22%
D 7710 6846 99 99 1.28% 1.45%

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 3531864 22625.31 745 725 156.1
A 14 235 47643 300.62 745 725 156.1
A 0 243 41039 258.31 745 725 156.1
B 0 190 136516 909.06 749 722 149.4
B 5 32 75647 501.58 749 722 149.4
B 12 3 57145 377.72 749 722 149.4
C 14 254 117416 661.72 744 748 176.3
C 12 2 29568 163.46 744 748 176.3
C 3 233 20656 112.91 744 748 176.3
D 13 249 350608 1899.45 737 716 184.2
D 1 52 181739 982.71 737 716 184.2
D 8 176 169122 914.22 737 716 184.2

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