ASTROSAT CZTI

Data Quality Report

Orbit 23446

Creation date: 2024-06-27T18:54:27.290234
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/AS1A07_100T02_9000003470_23446cztM0_level2.evt modeM0/AS1A07_100T02_9000003470_23446cztM0_level2_quad_clean.evt
Size (bytes)538,309,44097,084,800
Size513.4 MB 92.6 MB
Events in quadrant A2,893,200644,085
Events in quadrant B3,211,250660,628
Events in quadrant C3,066,793637,362
Events in quadrant D6,721,925575,703

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124151
B0134491
C0127631
D0241571

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6034160.265164%
B6034661.093802%
C6034590.977793%
D603468411.335764%

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 7209 6035 0 0 0.00% 0.00%
B 7209 6035 23 23 0.32% 0.38%
C 7209 6035 0 0 0.00% 0.00%
D 7209 6034 611 611 8.48% 10.13%

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 13 254 10055 61.72 749 732 151.0
A 0 226 6429 37.72 749 732 151.0
A 3 137 6185 36.1 749 732 151.0
B 0 229 117954 819.71 754 736 143.0
B 0 189 58595 404.61 754 736 143.0
B 0 190 35750 244.85 754 736 143.0
C 14 238 118224 680.35 741 745 172.7
C 1 16 36572 207.48 741 745 172.7
C 7 247 12311 66.98 741 745 172.7
D 7 238 3515231 20187.35 716 696 174.1
D 1 52 179905 1029.37 716 696 174.1
D 12 233 99789 569.19 716 696 174.1

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