ASTROSAT CZTI

Data Quality Report

Orbit 23019

Creation date: 2024-06-27T18:48:52.950583
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/AS1C05_004T01_9000003404_23019cztM0_level2.evt modeM0/AS1C05_004T01_9000003404_23019cztM0_level2_quad_clean.evt
Size (bytes)493,205,760112,567,680
Size470.4 MB 107.4 MB
Events in quadrant A3,338,400737,754
Events in quadrant B3,615,387746,880
Events in quadrant C3,462,866718,066
Events in quadrant D4,026,822701,482

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149501
B0155681
C0151661
D0169781

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72542002.757100%
B72542673.680728%
C72542072.853598%
D72542042.812242%

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 7299 7255 0 0 0.00% 0.00%
B 7299 7255 45 45 0.62% 0.62%
C 7299 7255 1 1 0.01% 0.01%
D 7299 7255 53 53 0.73% 0.73%

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 10073 52.84 865 846 174.6
A 3 137 8003 40.99 865 846 174.6
A 0 226 7406 37.57 865 846 174.6
B 4 216 188849 1146.69 857 835 164.0
B 0 189 26992 159.53 857 835 164.0
B 12 111 20358 119.07 857 835 164.0
C 14 238 131040 675.55 823 827 192.8
C 7 247 91009 467.87 823 827 192.8
C 8 222 12359 59.83 823 827 192.8
D 1 52 533240 2598.17 840 814 204.9
D 2 152 143946 698.47 840 814 204.9
D 13 153 121909 590.93 840 814 204.9

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