ASTROSAT CZTI

Data Quality Report

Orbit 05658

Creation date: 2024-06-27T14:57:40.411940
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_032T02_9000000730_05658cztM0_level2.evt modeM0/AS1G06_032T02_9000000730_05658cztM0_level2_quad_clean.evt
Size (bytes)457,649,28085,668,480
Size436.4 MB 81.7 MB
Events in quadrant A3,224,727545,713
Events in quadrant B3,498,382543,831
Events in quadrant C3,250,893541,482
Events in quadrant D3,454,878520,368

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135816
B0143462
C0137474
D0141412

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6350941.480315%
B6351961.511573%
C6350801.259843%
D6351781.228153%

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 7596 6352 2 2 0.03% 0.03%
B 7596 6352 11 11 0.14% 0.17%
C 7596 6352 5 5 0.07% 0.08%
D 7596 6352 7 7 0.09% 0.11%

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 0 50 16706 93.77 827 811 169.5
A 0 254 15056 84.04 827 811 169.5
A 0 226 8293 44.14 827 811 169.5
B 15 204 99673 629.41 821 803 157.1
B 11 51 63169 397.02 821 803 157.1
B 15 54 38129 237.62 821 803 157.1
C 1 16 99323 545.57 787 791 180.6
C 5 250 58715 320.72 787 791 180.6
C 12 4 8820 44.46 787 791 180.6
D 8 195 241801 1224.17 799 776 196.9
D 2 152 74673 375.32 799 776 196.9
D 2 14 32005 158.61 799 776 196.9

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