ASTROSAT CZTI

Data Quality Report

Orbit 07135

Creation date: 2024-06-27T15:15:59.256752
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_051T01_9000000972_07135cztM0_level2.evt modeM0/AS1G06_051T01_9000000972_07135cztM0_level2_quad_clean.evt
Size (bytes)406,359,36083,399,040
Size387.5 MB 79.5 MB
Events in quadrant A2,925,025526,318
Events in quadrant B3,101,773542,655
Events in quadrant C2,878,718528,077
Events in quadrant D2,983,204499,661

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0141
C0152
D0141

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01282
B01282
C01280
D01293

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012991393
B013595414
C012945385
D013389509

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6138210.342131%
B6137380.619195%
C6146140.227790%
D6125180.293878%

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 7705 6166 0 0 0.00% 0.00%
B 7704 6167 4 4 0.05% 0.06%
C 7708 6165 0 0 0.00% 0.00%
D 7707 6151 9 9 0.12% 0.15%

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 13760 85.87 755 742 151.6
A 0 226 7289 43.18 755 742 151.6
A 14 111 7171 42.4 755 742 151.6
B 0 219 94906 651.98 761 743 144.4
B 0 214 50163 342.18 761 743 144.4
B 4 81 14973 98.53 761 743 144.4
C 9 68 8387 44.98 734 739 170.0
C 10 22 6326 32.86 734 739 170.0
C 13 61 5732 29.36 734 739 170.0
D 12 233 73662 409.35 727 704 178.2
D 2 136 67094 372.5 727 704 178.2
D 2 216 34619 190.29 727 704 178.2

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