ASTROSAT CZTI

Data Quality Report

Orbit 26532

Creation date: 2024-06-27T19:30:08.937797
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/AS1A09_095T02_9000003840_26532cztM0_level2.evt modeM0/AS1A09_095T02_9000003840_26532cztM0_level2_quad_clean.evt
Size (bytes)180,043,20025,171,200
Size171.7 MB 24.0 MB
Events in quadrant A973,368168,082
Events in quadrant B1,077,065170,088
Events in quadrant C1,227,869159,529
Events in quadrant D2,065,684148,210

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040430
B043420
C048270
D072530

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1559654.169339%
B15591036.606799%
C15591036.606799%
D155836423.363286%

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 2924 1559 0 0 0.00% 0.00%
B 2924 1559 3 3 0.10% 0.19%
C 2924 1559 8 8 0.27% 0.51%
D 2923 1558 258 258 8.83% 16.56%

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 5 168 16957 339.26 245 241 49.3
A 9 130 10162 201.35 245 241 49.3
A 13 254 2526 46.37 245 241 49.3
B 3 64 90273 1996.46 239 235 45.1
B 3 112 26650 585.71 239 235 45.1
B 5 172 25198 553.52 239 235 45.1
C 3 233 301070 5776.44 224 225 52.1
C 14 238 37922 723.81 224 225 52.1
C 4 254 7776 144.98 224 225 52.1
D 7 80 593533 11287.77 218 213 52.6
D 1 52 553173 10519.93 218 213 52.6
D 12 233 72674 1378.55 218 213 52.6

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