ASTROSAT CZTI

Data Quality Report

Orbit 45304

Creation date: 2024-06-27T23:12:09.643499
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_073T04_9000006066_45304cztM0_level2.fits modeM0/AS1A13_073T04_9000006066_45304cztM0_level2_quad_clean.evt
Size (bytes)504,887,040117,288,000
Size481.5 MB 111.9 MB
Events in quadrant A5,625,056772,367
Events in quadrant B3,453,711801,450
Events in quadrant C3,525,111769,711
Events in quadrant D5,527,076706,789

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220280
B0155270
C0159740
D0213730

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71961301.806559%
B71951141.584434%
C71961221.695386%
D71961852.570873%

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 7196 7196 1 1 0.01% 0.01%
B 7195 7195 30 30 0.42% 0.42%
C 7196 7196 99 99 1.38% 1.38%
D 7196 7196 185 185 2.57% 2.57%

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 2425851 14229.79 809 788 170.4
A 10 248 62345 361.2 809 788 170.4
A 3 137 9555 51.44 809 788 170.4
B 5 255 178671 1113.27 804 779 159.8
B 5 172 21891 132.12 804 779 159.8
B 12 111 20526 123.58 804 779 159.8
C 14 254 244078 1326.76 784 789 183.4
C 12 250 195292 1060.71 784 789 183.4
C 1 3 13426 68.91 784 789 183.4
D 11 241 998603 5139.36 788 766 194.2
D 1 52 636661 3275.18 788 766 194.2
D 2 249 389249 2000.88 788 766 194.2

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