ASTROSAT CZTI

Data Quality Report

Orbit 06441

Creation date: 2024-06-27T15:07:16.017688
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/AS1A02_191T01_9000000854_06441cztM0_level2.evt modeM0/AS1A02_191T01_9000000854_06441cztM0_level2_quad_clean.evt
Size (bytes)396,858,24089,323,200
Size378.5 MB 85.2 MB
Events in quadrant A2,832,712578,238
Events in quadrant B3,034,730598,822
Events in quadrant C2,710,517565,849
Events in quadrant D3,024,931535,389

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124762
B0128451
C0124311
D0132181

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6120380.620915%
B6120691.127451%
C6120130.212418%
D6120270.441176%

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 7425 6121 0 0 0.00% 0.00%
B 7425 6121 9 9 0.12% 0.15%
C 7425 6121 0 0 0.00% 0.00%
D 7425 6121 10 10 0.13% 0.16%

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 8 15 12083 77.67 728 712 146.4
A 12 194 6986 42.85 728 712 146.4
A 0 226 6904 42.29 728 712 146.4
B 11 51 49292 350.59 734 718 138.5
B 0 219 36925 261.33 734 718 138.5
B 8 3 33415 236.0 734 718 138.5
C 13 61 5529 30.23 694 697 159.8
C 8 222 2374 10.49 694 697 159.8
C 3 202 1719 6.39 694 697 159.8
D 2 152 170228 1002.08 693 672 169.2
D 2 63 83588 490.03 693 672 169.2
D 11 241 52223 304.67 693 672 169.2

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