ASTROSAT CZTI

Data Quality Report

Orbit 43098

Creation date: 2024-06-27T22:48:00.104133
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/AS1T05_153T01_9000005848_43098cztM0_level2.fits modeM0/AS1T05_153T01_9000005848_43098cztM0_level2_quad_clean.evt
Size (bytes)313,833,60093,136,320
Size299.3 MB 88.8 MB
Events in quadrant A3,255,998646,248
Events in quadrant B2,573,789647,961
Events in quadrant C2,505,716607,644
Events in quadrant D2,879,965557,746

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0280
C0280
D0280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127902
B0109362
C0104802
D0120432

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5154841.629802%
B5154250.485060%
C5154100.194024%
D51541182.289484%

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 7278 5155 48 48 0.66% 0.93%
B 7278 5155 8 8 0.11% 0.16%
C 7278 5155 5 5 0.07% 0.10%
D 7278 5155 82 82 1.13% 1.59%

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 580822 4833.55 595 582 120.0
A 15 237 321159 2670.49 595 582 120.0
A 12 189 36271 297.29 595 582 120.0
B 0 229 126832 1126.93 586 570 112.0
B 0 245 93461 829.08 586 570 112.0
B 3 112 26550 231.88 586 570 112.0
C 15 214 219256 1660.79 572 576 131.7
C 14 254 34864 260.4 572 576 131.7
C 1 16 8645 61.28 572 576 131.7
D 1 52 323586 2322.19 572 556 139.1
D 12 233 161901 1159.87 572 556 139.1
D 13 249 105400 753.7 572 556 139.1

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