ASTROSAT CZTI

Data Quality Report

Orbit 47114

Creation date: 2024-06-27T23:31:53.990921
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_003T01_9000006298_47114cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47114cztM0_level2_quad_clean.evt
Size (bytes)442,866,24098,400,960
Size422.4 MB 93.8 MB
Events in quadrant A6,012,956663,036
Events in quadrant B3,289,925677,364
Events in quadrant C2,800,643640,606
Events in quadrant D3,819,312575,695

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0223071
B0138191
C0128611
D0156551

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60572033.351494%
B60571632.691101%
C6058721.188511%
D60583335.496864%

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 7112 6058 5 5 0.07% 0.08%
B 7112 6059 38 38 0.53% 0.63%
C 7113 6060 30 30 0.42% 0.50%
D 7113 6060 242 242 3.40% 3.99%

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 3358990 24063.69 675 660 139.6
A 13 254 11866 80.3 675 660 139.6
A 13 248 10530 70.72 675 660 139.6
B 5 32 184881 1415.88 669 650 130.1
B 8 234 93961 717.13 669 650 130.1
B 0 200 91178 695.74 669 650 130.1
C 14 254 231271 1520.35 653 655 151.7
C 14 67 7556 45.5 653 655 151.7
C 15 208 4795 27.29 653 655 151.7
D 1 47 533942 3265.05 648 626 163.3
D 12 233 428411 2618.97 648 626 163.3
D 2 249 182233 1111.83 648 626 163.3

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