ASTROSAT CZTI

Data Quality Report

Orbit 06398

Creation date: 2024-06-27T15:06:28.718225
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/AS1C02_017T01_9000000848_06398cztM0_level2.evt modeM0/AS1C02_017T01_9000000848_06398cztM0_level2_quad_clean.evt
Size (bytes)278,925,12084,072,960
Size266.0 MB 80.2 MB
Events in quadrant A2,001,975564,362
Events in quadrant B2,115,108573,446
Events in quadrant C1,902,974569,708
Events in quadrant D2,140,247542,755

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0840
B0840
C0840
D0840

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A085260
B088910
C085270
D091240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A420140.095215%
B420160.142823%
C420130.071412%
D4201290.690312%

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 4201 4201 0 0 0.00% 0.00%
B 4201 4201 2 2 0.05% 0.05%
C 4201 4201 0 0 0.00% 0.00%
D 4201 4201 24 24 0.57% 0.57%

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 47258 460.72 502 493 101.5
A 15 174 15133 144.23 502 493 101.5
A 15 234 6657 60.73 502 493 101.5
B 4 81 55226 579.76 502 491 94.4
B 15 204 32795 342.17 502 491 94.4
B 10 246 25760 267.65 502 491 94.4
C 1 16 5783 47.8 486 488 110.8
C 13 61 3957 31.32 486 488 110.8
C 3 202 1276 7.11 486 488 110.8
D 2 152 143900 1207.55 486 472 118.8
D 11 241 56911 475.17 486 472 118.8
D 13 172 18172 149.02 486 472 118.8

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