ASTROSAT CZTI

Data Quality Report

Orbit 43183

Creation date: 2024-06-27T22:49:00.355381
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_036T17_9000005858_43183cztM0_level2.fits modeM0/AS1A09_036T17_9000005858_43183cztM0_level2_quad_clean.evt
Size (bytes)72,316,80021,844,800
Size69.0 MB 20.8 MB
Events in quadrant A799,731146,077
Events in quadrant B578,037153,372
Events in quadrant C660,292141,316
Events in quadrant D543,830131,768

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A031491
B025001
C026841
D024551

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1179322.714165%
B117960.508906%
C117970.593723%
D117930.254453%

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 1179 1179 27 27 2.29% 2.29%
B 1179 1179 4 4 0.34% 0.34%
C 1179 1179 6 6 0.51% 0.51%
D 1179 1179 4 4 0.34% 0.34%

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 179109 6150.42 132 129 29.1
A 15 237 71241 2443.67 132 129 29.1
A 15 222 21874 747.24 132 129 29.1
B 5 255 48038 1740.07 133 130 27.5
B 0 230 3743 131.23 133 130 27.5
B 0 229 3473 121.42 133 130 27.5
C 0 239 70450 2156.83 131 132 32.6
C 15 214 53436 1634.97 131 132 32.6
C 14 254 12289 372.89 131 132 32.6
D 2 249 31820 946.26 130 126 33.5
D 12 6 10106 297.96 130 126 33.5
D 2 234 3736 107.78 130 126 33.5

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