ASTROSAT CZTI

Data Quality Report

Orbit 19530

Creation date: 2024-06-27T18:03:56.080963
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/AS1T03_108T01_9000002898_19530cztM0_level2.evt modeM0/AS1T03_108T01_9000002898_19530cztM0_level2_quad_clean.evt
Size (bytes)559,186,56082,500,480
Size533.3 MB 78.7 MB
Events in quadrant A3,775,078497,459
Events in quadrant B3,919,845502,970
Events in quadrant C4,070,539484,814
Events in quadrant D4,650,048480,232

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0161123
B0164592
C0168022
D0189472

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76611752.284297%
B76612162.819475%
C76612473.224122%
D76612523.289388%

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 8701 7663 0 0 0.00% 0.00%
B 8701 7664 4 4 0.05% 0.05%
C 8701 7662 0 0 0.00% 0.00%
D 8701 7664 136 136 1.56% 1.77%

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 12 16 13122 61.36 971 949 198.4
A 12 96 11887 55.13 971 949 198.4
A 13 254 10152 46.39 971 949 198.4
B 7 220 62337 329.5 964 939 186.3
B 0 244 36210 189.29 964 939 186.3
B 12 111 23278 119.89 964 939 186.3
C 3 233 303633 1374.1 926 933 220.3
C 14 238 142180 641.19 926 933 220.3
C 0 207 10157 41.87 926 933 220.3
D 1 52 436097 1872.26 945 918 232.4
D 12 233 263568 1129.99 945 918 232.4
D 12 218 248763 1066.3 945 918 232.4

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