ASTROSAT CZTI

Data Quality Report

Orbit 05793

Creation date: 2024-06-27T14:59:13.220427
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_106T01_9000000744_05793cztM0_level2.evt modeM0/AS1A02_106T01_9000000744_05793cztM0_level2_quad_clean.evt
Size (bytes)489,432,96081,227,520
Size466.8 MB 77.5 MB
Events in quadrant A3,550,307484,578
Events in quadrant B3,751,496494,906
Events in quadrant C3,520,550479,722
Events in quadrant D3,473,535461,921

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0159784
B0162223
C0159413
D0160373

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77392563.307921%
B77392603.359607%
C77391952.519705%
D77391882.429254%

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 8694 7744 1 1 0.01% 0.01%
B 8694 7744 4 4 0.05% 0.05%
C 8694 7744 0 0 0.00% 0.00%
D 8694 7744 0 0 0.00% 0.00%

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 7 16 17134 86.62 917 895 187.5
A 0 226 8950 42.97 917 895 187.5
A 12 194 8887 42.63 917 895 187.5
B 4 81 68907 379.07 928 903 179.4
B 15 204 39186 213.4 928 903 179.4
B 0 219 28977 156.49 928 903 179.4
C 8 128 16761 76.96 894 895 206.2
C 8 112 7956 34.25 894 895 206.2
C 13 61 7250 30.82 894 895 206.2
D 8 195 35618 159.61 890 860 217.8
D 12 233 23462 103.79 890 860 217.8
D 12 227 12830 54.97 890 860 217.8

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