ASTROSAT CZTI

Data Quality Report

Orbit 13203

Creation date: 2024-06-27T16:37:39.820264
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/AS1A04_104T04_9000001966_13203cztM0_level2.evt modeM0/AS1A04_104T04_9000001966_13203cztM0_level2_quad_clean.evt
Size (bytes)627,168,96093,807,360
Size598.1 MB 89.5 MB
Events in quadrant A3,305,933598,469
Events in quadrant B4,064,106603,874
Events in quadrant C3,182,216612,046
Events in quadrant D7,961,457532,830

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145847
B0167262
C01444412
D02854513

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7081530.748482%
B70833264.602570%
C7079190.268399%
D7080166423.502825%

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 7819 7085 1 1 0.01% 0.01%
B 7819 7085 162 162 2.07% 2.29%
C 7819 7085 0 0 0.00% 0.00%
D 7819 7085 1203 1203 15.39% 16.98%

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 12 189 26618 151.3 839 819 170.5
A 12 96 22036 124.43 839 819 170.5
A 1 162 17062 95.26 839 819 170.5
B 4 239 736270 4616.18 829 809 159.3
B 3 64 27420 167.03 829 809 159.3
B 0 214 27085 164.92 829 809 159.3
C 13 61 5872 26.76 815 823 188.7
C 8 222 3509 14.24 815 823 188.7
C 14 234 2322 7.94 815 823 188.7
D 13 122 4991949 28650.63 723 702 174.2
D 1 52 141584 808.69 723 702 174.2
D 8 195 51809 293.36 723 702 174.2

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