ASTROSAT CZTI

Data Quality Report

Orbit 03214

Creation date: 2024-06-27T14:25:56.038760
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/AS1G05_221T01_9000000438_03214cztM0_level2.evt modeM0/AS1G05_221T01_9000000438_03214cztM0_level2_quad_clean.evt
Size (bytes)744,448,32066,672,000
Size710.0 MB 63.6 MB
Events in quadrant A2,854,784424,256
Events in quadrant B3,273,250428,882
Events in quadrant C12,504,396325,008
Events in quadrant D3,492,693404,990

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127223
B0134892
C0414642
D0146382

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6218340.546800%
B6218631.013188%
C6218333453.618527%
D6218801.286587%

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 7488 6218 1 1 0.01% 0.02%
B 7488 6218 1 1 0.01% 0.02%
C 7487 6217 3421 3421 45.69% 55.03%
D 7488 6218 50 50 0.67% 0.80%

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 0 118 14126 89.92 734 717 149.1
A 0 226 9140 56.48 734 717 149.1
A 12 194 7770 47.3 734 717 149.1
B 15 204 309428 2178.64 751 734 141.7
B 4 80 23040 157.43 751 734 141.7
B 1 223 20970 142.82 751 734 141.7
C 12 206 9447863 67752.62 610 613 139.4
C 15 208 489834 3508.53 610 613 139.4
C 1 192 90488 644.55 610 613 139.4
D 8 144 368429 2151.81 710 690 170.9
D 13 223 167557 976.42 710 690 170.9
D 13 120 87108 505.67 710 690 170.9

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