ASTROSAT CZTI

Data Quality Report

Orbit 08190

Creation date: 2024-06-27T15:29:14.760941
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/AS1A03_106T01_9000001130_08190cztM0_level2.evt modeM0/AS1A03_106T01_9000001130_08190cztM0_level2_quad_clean.evt
Size (bytes)105,655,68031,351,680
Size100.8 MB 29.9 MB
Events in quadrant A767,371214,349
Events in quadrant B772,487217,491
Events in quadrant C738,455208,825
Events in quadrant D823,039203,536

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A031152
B031251
C030461
D033081

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A140680.568990%
B1406100.711238%
C140620.142248%
D1406181.280228%

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 1406 1406 0 0 0.00% 0.00%
B 1406 1406 0 0 0.00% 0.00%
C 1406 1406 0 0 0.00% 0.00%
D 1406 1406 4 4 0.28% 0.28%

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 13 14 4142 94.88 198 194 41.6
A 0 226 1887 40.69 198 194 41.6
A 12 194 1764 37.73 198 194 41.6
B 0 214 7619 195.08 194 189 38.1
B 4 81 7117 181.9 194 189 38.1
B 0 219 4713 118.78 194 189 38.1
C 13 61 1417 27.16 189 189 45.2
C 7 159 494 6.75 189 189 45.2
C 3 202 484 6.53 189 189 45.2
D 12 233 22494 432.14 192 187 51.6
D 6 225 21515 413.17 192 187 51.6
D 1 7 20727 397.91 192 187 51.6

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