ASTROSAT CZTI

Data Quality Report

Orbit 46555

Creation date: 2024-06-27T23:24:40.043820
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/AS1A13_091T08_9000006228_46555cztM0_level2.fits modeM0/AS1A13_091T08_9000006228_46555cztM0_level2_quad_clean.evt
Size (bytes)210,055,68040,893,120
Size200.3 MB 39.0 MB
Events in quadrant A2,395,090274,028
Events in quadrant B1,335,085278,520
Events in quadrant C1,471,752260,576
Events in quadrant D2,369,500238,426

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0520
B0520
C0520
D0520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A087200
B056670
C061970
D089090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A260670.268611%
B260740.153433%
C2607542.071346%
D2607983.759110%

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 2606 2606 0 0 0.00% 0.00%
B 2607 2607 1 1 0.04% 0.04%
C 2606 2606 49 49 1.88% 1.88%
D 2607 2607 109 109 4.18% 4.18%

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 10 83 1256704 21076.59 277 271 59.6
A 0 243 19094 315.75 277 271 59.6
A 13 248 9819 160.17 277 271 59.6
B 2 2 94842 1717.09 272 264 55.1
B 15 201 78820 1426.21 272 264 55.1
B 3 112 27440 493.39 272 264 55.1
C 1 241 318476 4982.56 268 269 63.9
C 14 254 44078 685.97 268 269 63.9
C 3 233 27656 428.83 268 269 63.9
D 1 52 472713 6826.27 270 262 69.2
D 8 176 407704 5886.98 270 262 69.2
D 2 120 109421 1577.2 270 262 69.2

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