ASTROSAT CZTI

Data Quality Report

Orbit 10612

Creation date: 2024-06-27T16:01:29.235097
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/AS1T01_191T01_9000001536_10612cztM0_level2.evt modeM0/AS1T01_191T01_9000001536_10612cztM0_level2_quad_clean.evt
Size (bytes)589,472,64098,700,480
Size562.2 MB 94.1 MB
Events in quadrant A3,723,121626,816
Events in quadrant B5,617,112605,468
Events in quadrant C3,597,957632,150
Events in quadrant D4,395,297592,032

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160713
B0217182
C0158342
D0176932

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7651660.862632%
B76515577.280094%
C7651490.640439%
D76511001.307019%

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 9546 7653 2 2 0.02% 0.03%
B 9546 7653 291 291 3.05% 3.80%
C 9546 7653 5 5 0.05% 0.07%
D 9546 7652 36 36 0.38% 0.47%

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 1 162 37198 187.87 935 918 193.1
A 8 15 25332 126.42 935 918 193.1
A 15 174 19188 94.61 935 918 193.1
B 4 239 1771633 10084.2 916 897 175.6
B 0 85 137391 777.32 916 897 175.6
B 0 214 66902 375.89 916 897 175.6
C 14 234 33340 153.27 909 917 211.5
C 4 254 8047 33.7 909 917 211.5
C 14 67 7696 32.04 909 917 211.5
D 8 195 518516 2385.48 896 874 217.0
D 2 16 188046 862.56 896 874 217.0
D 1 52 124014 567.47 896 874 217.0

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