ASTROSAT CZTI

Data Quality Report

Orbit 28563

Creation date: 2024-06-27T19:53:24.557871
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/AS1A10_110T01_9000004104_28563cztM0_level2.evt modeM0/AS1A10_110T01_9000004104_28563cztM0_level2_quad_clean.evt
Size (bytes)372,216,96058,066,560
Size355.0 MB 55.4 MB
Events in quadrant A2,576,573362,991
Events in quadrant B2,481,614369,529
Events in quadrant C2,438,081350,602
Events in quadrant D3,451,593339,857

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0980
B0980
C0980
D0980

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0106411
B0103361
C0101832
D0134501

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A47691222.558188%
B4769992.075907%
C47681062.223154%
D47682284.781879%

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 5094 4769 11 11 0.22% 0.23%
B 5094 4769 1 1 0.02% 0.02%
C 5093 4769 0 0 0.00% 0.00%
D 5093 4769 230 230 4.52% 4.82%

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 15 174 181298 1453.52 610 597 124.3
A 14 238 36828 291.43 610 597 124.3
A 13 254 7901 58.75 610 597 124.3
B 4 171 49117 404.49 606 590 120.0
B 5 255 27247 222.2 606 590 120.0
B 12 111 14936 119.58 606 590 120.0
C 14 238 93663 668.03 584 586 139.3
C 7 247 60623 430.89 584 586 139.3
C 3 233 6611 43.24 584 586 139.3
D 8 195 796181 5673.19 584 567 140.2
D 2 250 212563 1511.65 584 567 140.2
D 1 52 171206 1216.75 584 567 140.2

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