ASTROSAT CZTI

Data Quality Report

Orbit 17743

Creation date: 2024-06-27T17:40:19.003282
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_070T03_9000002636_17743cztM0_level2.evt modeM0/AS1T03_070T03_9000002636_17743cztM0_level2_quad_clean.evt
Size (bytes)124,764,48030,127,680
Size119.0 MB 28.7 MB
Events in quadrant A738,429211,642
Events in quadrant B1,299,930189,696
Events in quadrant C776,284203,718
Events in quadrant D862,537198,996

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A12733597094080
B1-1-1
C1-1-1
D1-1-1

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030821
B048491
C031641
D034781

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A144640.276625%
B144623516.251729%
C1446140.968188%
D1446221.521438%

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 1446 1446 0 0 0.00% 0.00%
B 1446 1446 201 201 13.90% 13.90%
C 1446 1446 0 0 0.00% 0.00%
D 1446 1446 11 11 0.76% 0.76%

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 15 191 6468 157.64 190 185 39.9
A 0 226 1744 39.11 190 185 39.9
A 12 194 1452 31.79 190 185 39.9
B 4 142 536562 15906.85 170 165 33.7
B 10 245 64054 1894.63 170 165 33.7
B 6 36 12067 352.95 170 165 33.7
C 14 238 28251 637.44 183 184 44.0
C 5 218 14142 317.0 183 184 44.0
C 3 233 12299 275.15 183 184 44.0
D 1 52 99864 2188.64 186 180 45.5
D 10 70 17360 377.2 186 180 45.5
D 7 238 15111 327.82 186 180 45.5

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