ASTROSAT CZTI

Data Quality Report

Orbit 19191

Creation date: 2024-06-27T17:59:54.711058
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/AS1A05_046T01_9000002838_19191cztM0_level2.evt modeM0/AS1A05_046T01_9000002838_19191cztM0_level2_quad_clean.evt
Size (bytes)553,432,32080,588,160
Size527.8 MB 76.9 MB
Events in quadrant A3,249,509507,890
Events in quadrant B3,497,567517,629
Events in quadrant C3,845,198499,329
Events in quadrant D5,743,590477,516

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137712
B0145952
C0154202
D0214312

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6271761.211928%
B6271931.483017%
C62711672.663052%
D627163810.173816%

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 7481 6271 0 0 0.00% 0.00%
B 7481 6271 9 9 0.12% 0.14%
C 7481 6271 10 10 0.13% 0.16%
D 7481 6271 406 406 5.43% 6.47%

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 13 254 8501 45.26 842 826 169.6
A 0 226 7300 38.18 842 826 169.6
A 3 137 6257 32.03 842 826 169.6
B 0 197 99451 616.11 844 826 160.1
B 7 220 44252 271.28 844 826 160.1
B 0 190 28334 171.84 844 826 160.1
C 3 233 520191 2753.3 811 819 188.6
C 14 238 126831 668.02 811 819 188.6
C 0 207 36867 191.1 811 819 188.6
D 10 66 2093626 10961.32 799 779 190.9
D 1 52 394773 2063.55 799 779 190.9
D 11 176 138426 720.93 799 779 190.9

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