ASTROSAT CZTI

Data Quality Report

Orbit 13492

Creation date: 2024-06-27T16:41:37.548766
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/AS1A04_103T01_9000001988_13492cztM0_level2.evt modeM0/AS1A04_103T01_9000001988_13492cztM0_level2_quad_clean.evt
Size (bytes)190,552,32034,807,680
Size181.7 MB 33.2 MB
Events in quadrant A1,384,422217,147
Events in quadrant B1,446,996216,012
Events in quadrant C1,385,756217,800
Events in quadrant D1,362,706204,572

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135307732
B0144968486
C0134427591
D0138448073

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013270
B013478
C013272
D013478

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0111
C0111
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2763511.845820%
B2711782.877167%
C2777341.224343%
D2737240.876872%

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 6591 3555 0 0 0.00% 0.00%
B 6651 3486 0 0 0.00% 0.00%
C 6227 3579 0 0 0.00% 0.00%
D 6540 3526 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 8 15 17188 230.55 352 344 73.1
A 1 162 9725 128.4 352 344 73.1
A 0 226 3071 37.33 352 344 73.1
B 4 173 32925 484.99 346 337 67.2
B 3 64 30230 444.88 346 337 67.2
B 0 230 12776 185.12 346 337 67.2
C 3 233 28350 343.33 347 348 81.6
C 0 207 4421 49.94 347 348 81.6
C 13 61 2472 26.04 347 348 81.6
D 8 195 62622 761.88 337 326 81.8
D 2 136 15331 183.51 337 326 81.8
D 2 234 10542 124.94 337 326 81.8

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