ASTROSAT CZTI

Data Quality Report

Orbit 14084

Creation date: 2024-06-27T16:50:10.302962
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/AS1G08_022T01_9000002078_14084cztM0_level2.evt modeM0/AS1G08_022T01_9000002078_14084cztM0_level2_quad_clean.evt
Size (bytes)521,078,40098,380,800
Size496.9 MB 93.8 MB
Events in quadrant A3,791,503659,471
Events in quadrant B4,486,469650,405
Events in quadrant C3,122,679630,350
Events in quadrant D3,958,037604,665

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0154083
B0174352
C0131612
D0159722

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62191322.122528%
B62195038.088117%
C6219490.787908%
D62191472.363724%

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 7555 6221 21 21 0.28% 0.34%
B 7555 6221 291 291 3.85% 4.68%
C 7555 6221 1 1 0.01% 0.02%
D 7555 6221 74 74 0.98% 1.19%

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 15 222 478733 2927.96 823 808 163.2
A 12 189 92074 559.13 823 808 163.2
A 9 143 39603 237.67 823 808 163.2
B 10 16 1178296 8032.48 791 775 146.6
B 10 245 100643 681.25 791 775 146.6
B 0 189 33740 224.87 791 775 146.6
C 3 233 49256 270.51 786 791 179.2
C 0 207 10803 55.88 786 791 179.2
C 13 61 5737 27.61 786 791 179.2
D 1 52 736502 4052.77 774 757 181.5
D 10 157 80351 438.44 774 757 181.5
D 2 152 63666 346.53 774 757 181.5

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