ASTROSAT CZTI

Data Quality Report

Orbit 16674

Creation date: 2024-06-27T17:26:04.126500
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_104T04_9000002464_16674cztM0_level2.evt modeM0/AS1A05_104T04_9000002464_16674cztM0_level2_quad_clean.evt
Size (bytes)243,576,00040,196,160
Size232.3 MB 38.3 MB
Events in quadrant A1,510,277271,729
Events in quadrant B1,636,367272,719
Events in quadrant C1,508,120255,553
Events in quadrant D2,540,794227,460

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A061442
B067101
C060571
D094711

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0540
B0540
C0540
D0540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A26451335.028355%
B26451405.293006%
C26451455.482042%
D264545217.088847%

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 3936 2647 0 0 0.00% 0.00%
B 3936 2647 1 1 0.03% 0.04%
C 3936 2647 0 0 0.00% 0.00%
D 3936 2647 223 223 5.67% 8.42%

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 3 1 9822 118.84 388 380 79.5
A 12 96 6231 73.64 388 380 79.5
A 0 226 3513 39.43 388 380 79.5
B 0 229 91326 1226.6 382 374 74.1
B 15 35 30005 399.61 382 374 74.1
B 0 189 8191 105.42 382 374 74.1
C 14 238 57239 665.67 363 368 85.4
C 3 233 33294 385.39 363 368 85.4
C 13 61 2610 26.24 363 368 85.4
D 2 16 632738 7331.82 354 344 86.3
D 1 52 393601 4559.33 354 344 86.3
D 10 70 144414 1670.31 354 344 86.3

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