ASTROSAT CZTI

Data Quality Report

Orbit 46429

Creation date: 2024-06-27T23:23:05.863185
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_062T01_9000006208_46429cztM0_level2.fits modeM0/AS1A13_062T01_9000006208_46429cztM0_level2_quad_clean.evt
Size (bytes)503,760,960106,240,320
Size480.4 MB 101.3 MB
Events in quadrant A5,573,413722,978
Events in quadrant B3,025,074750,391
Events in quadrant C3,882,934706,579
Events in quadrant D5,672,944593,321

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0205731
B0131761
C0160171
D0210331

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63551422.234461%
B6355951.494886%
C63552163.398899%
D635590514.240755%

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 7455 6355 6 6 0.08% 0.09%
B 7455 6355 6 6 0.08% 0.09%
C 7455 6356 126 126 1.69% 1.98%
D 7455 6356 792 792 10.62% 12.46%

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 2708204 17744.38 741 726 152.6
A 13 254 9814 59.56 741 726 152.6
A 3 137 8334 49.86 741 726 152.6
B 0 190 49977 339.09 737 716 145.3
B 0 189 45934 311.26 737 716 145.3
B 12 111 19231 127.45 737 716 145.3
C 14 254 996089 5873.17 718 724 169.5
C 3 233 46983 272.95 718 724 169.5
C 1 3 14237 79.73 718 724 169.5
D 13 249 2935664 16900.57 693 673 173.7
D 13 169 40179 227.49 693 673 173.7
D 2 234 27736 155.84 693 673 173.7

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