ASTROSAT CZTI

Data Quality Report

Orbit 45595

Creation date: 2024-06-27T23:14:01.277290
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_082T02_9000006112_45595cztM0_level2.fits modeM0/AS1A13_082T02_9000006112_45595cztM0_level2_quad_clean.evt
Size (bytes)550,684,800129,133,440
Size525.2 MB 123.2 MB
Events in quadrant A6,464,048854,345
Events in quadrant B3,991,642891,756
Events in quadrant C3,883,970846,254
Events in quadrant D5,428,357764,649

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0249290
B0174310
C0174411
D0217230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7954380.477747%
B7955640.804525%
C7954881.106362%
D79541622.036711%

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 7954 7954 2 2 0.03% 0.03%
B 7955 7955 30 30 0.38% 0.38%
C 7954 7954 55 55 0.69% 0.69%
D 7954 7954 96 96 1.21% 1.21%

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 3030282 16485.91 875 855 183.8
A 0 243 31646 167.56 875 855 183.8
A 0 227 10669 53.41 875 855 183.8
B 12 18 165073 948.38 885 859 173.2
B 5 172 66714 380.33 885 859 173.2
B 3 112 61976 352.97 885 859 173.2
C 14 254 462775 2238.98 872 876 206.3
C 13 61 5994 24.81 872 876 206.3
C 12 2 5571 22.76 872 876 206.3
D 1 52 911856 4183.85 862 832 217.7
D 11 241 633860 2907.16 862 832 217.7
D 2 249 176961 808.87 862 832 217.7

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