ASTROSAT CZTI

Data Quality Report

Orbit 32217

Creation date: 2024-06-27T20:37:42.631363
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_057T01_9000004692_32217cztM0_level2.evt modeM0/AS1A10_057T01_9000004692_32217cztM0_level2_quad_clean.evt
Size (bytes)543,818,88067,343,040
Size518.6 MB 64.2 MB
Events in quadrant A3,029,275408,415
Events in quadrant B5,212,636406,710
Events in quadrant C3,293,416400,518
Events in quadrant D4,521,875398,325

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129752
B0199061
C0138161
D0175291

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6092550.902823%
B60921833.003940%
C60924076.680893%
D60923175.203546%

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 7117 6093 1 1 0.01% 0.02%
B 7117 6093 41 41 0.58% 0.67%
C 7117 6093 3 3 0.04% 0.05%
D 7117 6093 152 152 2.14% 2.49%

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 37812 241.21 767 749 153.7
A 0 6 22392 140.86 767 749 153.7
A 13 254 14436 89.08 767 749 153.7
B 6 159 1838404 12698.78 758 739 144.7
B 0 190 165342 1137.45 758 739 144.7
B 5 172 125532 862.35 758 739 144.7
C 14 238 196495 1147.86 725 730 170.5
C 14 254 115690 674.06 725 730 170.5
C 0 10 71710 416.19 725 730 170.5
D 8 195 1195619 6754.73 739 718 176.9
D 12 218 94272 528.86 739 718 176.9
D 14 52 89916 504.23 739 718 176.9

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