ASTROSAT CZTI

Data Quality Report

Orbit 28083

Creation date: 2024-06-27T19:47:51.446914
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/AS1A10_073T01_9000004056_28083cztM0_level2.evt modeM0/AS1A10_073T01_9000004056_28083cztM0_level2_quad_clean.evt
Size (bytes)465,768,000125,046,720
Size444.2 MB 119.3 MB
Events in quadrant A2,992,589882,904
Events in quadrant B3,001,442871,909
Events in quadrant C3,225,988813,878
Events in quadrant D4,478,735799,970

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124030
B0124580
C0130560
D0172660

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59901332.220367%
B59911342.236688%
C59911432.386914%
D59913545.908863%

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 7110 5990 0 0 0.00% 0.00%
B 7111 5991 0 0 0.00% 0.00%
C 7111 5991 0 0 0.00% 0.00%
D 7111 5991 253 253 3.56% 4.22%

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 0 13 30100 193.15 765 750 152.0
A 13 254 10295 62.81 765 750 152.0
A 3 137 6906 40.51 765 750 152.0
B 0 190 21882 152.62 746 728 138.6
B 4 200 19286 133.89 746 728 138.6
B 12 111 16503 113.81 746 728 138.6
C 3 233 327793 2003.31 713 717 163.3
C 14 238 116189 707.25 713 717 163.3
C 13 61 4959 25.98 713 717 163.3
D 8 195 565673 3270.53 726 705 172.7
D 2 250 482453 2788.78 726 705 172.7
D 1 52 300544 1735.73 726 705 172.7

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