ASTROSAT CZTI

Data Quality Report

Orbit 46267

Creation date: 2024-06-27T23:21:05.514682
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_072T01_9000006192_46267cztM0_level2.fits modeM0/AS1A13_072T01_9000006192_46267cztM0_level2_quad_clean.evt
Size (bytes)468,757,440104,978,880
Size447.0 MB 100.1 MB
Events in quadrant A5,628,401685,151
Events in quadrant B4,231,299717,624
Events in quadrant C3,045,732695,378
Events in quadrant D3,935,521621,859

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0208041
B0169881
C0139872
D0163221

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65831432.172262%
B65841352.050425%
C65831021.549446%
D65832623.979948%

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 7513 6584 3 3 0.04% 0.05%
B 7514 6585 29 29 0.39% 0.44%
C 7513 6584 42 42 0.56% 0.64%
D 7513 6584 207 207 2.76% 3.14%

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 2845625 19127.23 719 702 148.7
A 13 254 9293 57.76 719 702 148.7
A 3 137 8398 51.74 719 702 148.7
B 3 112 1222091 8629.75 717 696 141.5
B 5 32 140356 986.77 717 696 141.5
B 12 111 18203 123.7 717 696 141.5
C 12 2 271599 1624.58 708 711 166.7
C 3 233 15077 86.16 708 711 166.7
C 13 61 4689 23.86 708 711 166.7
D 13 249 470532 2685.34 697 675 175.0
D 1 52 416729 2377.85 697 675 175.0
D 6 143 139015 790.65 697 675 175.0

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