ASTROSAT CZTI

Data Quality Report

Orbit 10125

Creation date: 2024-06-27T15:55:17.230494
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/AS1G07_013T01_9000001456_10125cztM0_level2.evt modeM0/AS1G07_013T01_9000001456_10125cztM0_level2_quad_clean.evt
Size (bytes)505,696,320135,095,040
Size482.3 MB 128.8 MB
Events in quadrant A3,417,556895,114
Events in quadrant B3,707,424900,353
Events in quadrant C3,352,108908,149
Events in quadrant D4,318,445856,716

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A016616
B01668
C016610
D01662

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0101
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A016494863
B017104948
C016373872
D0190391203

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7656630.822884%
B76201111.456693%
C7641480.628190%
D75961291.698262%

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 9111 8016 0 0 0.00% 0.00%
B 9111 8005 9 9 0.10% 0.11%
C 9111 7983 0 0 0.00% 0.00%
D 9111 7989 70 70 0.77% 0.88%

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 3 1 26349 144.08 870 849 177.0
A 8 15 21996 119.48 870 849 177.0
A 15 174 10650 55.38 870 849 177.0
B 0 189 83397 504.14 873 852 163.7
B 4 239 49680 298.21 873 852 163.7
B 0 214 47318 283.79 873 852 163.7
C 14 67 10080 46.89 852 854 196.8
C 8 128 10026 46.61 852 854 196.8
C 13 61 6391 28.14 852 854 196.8
D 8 195 342377 1702.6 835 809 200.6
D 2 136 172307 854.86 835 809 200.6
D 7 71 126696 627.5 835 809 200.6

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