ASTROSAT CZTI

Data Quality Report

Orbit 44101

Creation date: 2024-06-27T22:59:25.215872
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_038T01_9000005944_44101cztM0_level2.fits modeM0/AS1A13_038T01_9000005944_44101cztM0_level2_quad_clean.evt
Size (bytes)693,080,640101,067,840
Size661.0 MB 96.4 MB
Events in quadrant A13,070,866354,715
Events in quadrant B3,736,429784,719
Events in quadrant C3,177,349755,042
Events in quadrant D5,115,557667,491

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0438048
B0161900
C0148592
D0203135

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7146426059.613770%
B71471371.916888%
C7147140.195886%
D71463334.659950%

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 7147 7145 2928 2928 40.97% 40.98%
B 7147 7147 29 29 0.41% 0.41%
C 7148 7148 9 9 0.13% 0.13%
D 7148 7148 239 239 3.34% 3.34%

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 15 223 9701210 77450.96 598 585 125.2
A 10 83 872717 6963.21 598 585 125.2
A 15 222 181286 1442.74 598 585 125.2
B 4 171 188896 1186.8 800 776 158.5
B 5 235 180325 1132.73 800 776 158.5
B 0 155 63239 394.06 800 776 158.5
C 14 254 86269 455.87 786 788 187.5
C 14 96 24960 128.91 786 788 187.5
C 13 61 5230 23.69 786 788 187.5
D 1 52 726002 3766.84 770 747 192.5
D 2 249 348653 1806.96 770 747 192.5
D 5 222 236792 1225.97 770 747 192.5

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