ASTROSAT CZTI

Data Quality Report

Orbit 44589

Creation date: 2024-06-27T23:04:14.121283
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/AS1A13_009T03_9000006006_44589cztM0_level2.fits modeM0/AS1A13_009T03_9000006006_44589cztM0_level2_quad_clean.evt
Size (bytes)421,525,440107,870,400
Size402.0 MB 102.9 MB
Events in quadrant A4,500,062734,337
Events in quadrant B3,084,963756,705
Events in quadrant C3,561,098709,060
Events in quadrant D3,983,393640,927

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0186393
B0129531
C0145031
D0158061

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60991021.672405%
B6099901.475652%
C60991412.311854%
D61002534.147541%

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 7314 6099 6 6 0.08% 0.10%
B 7314 6099 9 9 0.12% 0.15%
C 7314 6099 95 95 1.30% 1.56%
D 7315 6100 220 220 3.01% 3.61%

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 10 83 1619870 10731.62 733 719 150.9
A 13 248 23404 150.35 733 719 150.9
A 10 248 16300 103.27 733 719 150.9
B 5 172 98689 682.37 733 712 143.6
B 0 155 60946 419.51 733 712 143.6
B 0 186 20401 137.13 733 712 143.6
C 12 2 475738 2820.65 717 725 168.4
C 14 254 160905 951.16 717 725 168.4
C 3 233 123276 727.71 717 725 168.4
D 13 249 652560 3651.7 708 686 178.5
D 1 52 342429 1914.4 708 686 178.5
D 2 249 80191 445.38 708 686 178.5

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