ASTROSAT CZTI

Data Quality Report

Orbit 17586

Creation date: 2024-06-27T17:38:17.922012
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/AS1A05_056T01_9000002604_17586cztM0_level2.evt modeM0/AS1A05_056T01_9000002604_17586cztM0_level2_quad_clean.evt
Size (bytes)478,244,16065,341,440
Size456.1 MB 62.3 MB
Events in quadrant A3,908,335389,609
Events in quadrant B3,358,553397,847
Events in quadrant C3,576,886380,907
Events in quadrant D3,220,423378,549

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153592
B0136702
C0145842
D0132912

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61781602.589835%
B6178791.278731%
C61781302.104241%
D6178651.052120%

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 7478 6179 75 75 1.00% 1.21%
B 7478 6179 0 0 0.00% 0.00%
C 7478 6179 0 0 0.00% 0.00%
D 7478 6179 0 0 0.00% 0.00%

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 14 237 638338 3811.8 846 833 167.2
A 6 16 16347 92.76 846 833 167.2
A 0 226 7492 39.82 846 833 167.2
B 4 48 22597 135.81 855 837 160.2
B 12 111 18698 111.47 855 837 160.2
B 11 111 16130 95.45 855 837 160.2
C 3 233 189507 995.55 826 833 189.5
C 14 238 129841 680.72 826 833 189.5
C 5 218 21195 107.44 826 833 189.5
D 5 222 43159 209.68 836 817 201.9
D 2 234 20017 95.08 836 817 201.9
D 13 189 14836 69.42 836 817 201.9

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