ASTROSAT CZTI

Data Quality Report

Orbit 43300

Creation date: 2024-06-27T22:50:19.813958
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/AS1A12_089T01_9000005864_43300cztM0_level2.fits modeM0/AS1A12_089T01_9000005864_43300cztM0_level2_quad_clean.evt
Size (bytes)321,661,44092,004,480
Size306.8 MB 87.7 MB
Events in quadrant A3,546,979612,838
Events in quadrant B2,673,896648,539
Events in quadrant C2,601,895613,276
Events in quadrant D2,685,731553,131

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0220
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139442
B0110212
C0105622
D0113733

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A51151442.815249%
B5115591.153470%
C5115110.215054%
D5114801.564333%

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 7207 5116 121 121 1.68% 2.37%
B 7207 5116 40 40 0.56% 0.78%
C 7207 5116 7 7 0.10% 0.14%
D 7206 5115 61 61 0.85% 1.19%

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 582328 4720.71 600 590 123.2
A 15 237 494336 4006.67 600 590 123.2
A 12 189 115998 936.52 600 590 123.2
B 5 172 92188 788.49 607 592 116.2
B 0 190 76378 652.4 607 592 116.2
B 5 255 58179 495.73 607 592 116.2
C 15 214 219036 1578.78 595 601 138.4
C 7 220 32825 232.91 595 601 138.4
C 15 159 22319 156.97 595 601 138.4
D 13 249 187890 1301.44 590 575 143.9
D 2 249 71584 493.36 590 575 143.9
D 1 52 52217 358.8 590 575 143.9

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