ASTROSAT CZTI

Data Quality Report

Orbit 23359

Creation date: 2024-06-27T18:53:16.985409
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_135T01_9000003452_23359cztM0_level2.evt modeM0/AS1A07_135T01_9000003452_23359cztM0_level2_quad_clean.evt
Size (bytes)477,406,08077,837,760
Size455.3 MB 74.2 MB
Events in quadrant A2,978,306492,385
Events in quadrant B3,098,847500,442
Events in quadrant C4,739,170475,860
Events in quadrant D3,239,513473,748

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124301
B0127181
C0181391
D0132041

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5943470.790846%
B5944530.891655%
C59441762.960969%
D5943530.891805%

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 7063 5943 0 0 0.00% 0.00%
B 7064 5944 1 1 0.01% 0.02%
C 7064 5944 22 22 0.31% 0.37%
D 7063 5943 17 17 0.24% 0.29%

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 8869 52.36 772 756 154.9
A 0 226 6787 38.92 772 756 154.9
A 3 137 6500 37.07 772 756 154.9
B 0 189 35786 242.92 761 742 144.3
B 0 229 27708 186.92 761 742 144.3
B 0 190 19506 130.07 761 742 144.3
C 0 239 1650564 9559.35 738 746 172.6
C 14 238 116893 672.98 738 746 172.6
C 7 247 73766 423.09 738 746 172.6
D 12 227 119958 641.41 756 735 185.9
D 1 52 96297 514.12 756 735 185.9
D 2 152 84944 453.04 756 735 185.9

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