ASTROSAT CZTI

Data Quality Report

Orbit 45038

Creation date: 2024-06-27T23:09:15.291215
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_020T01_9000006040_45038cztM0_level2.fits modeM0/AS1A13_020T01_9000006040_45038cztM0_level2_quad_clean.evt
Size (bytes)515,433,600105,240,960
Size491.6 MB 100.4 MB
Events in quadrant A5,108,485719,361
Events in quadrant B3,925,592723,490
Events in quadrant C3,504,309711,638
Events in quadrant D6,062,683601,786

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0194281
B0155851
C0144771
D0222801

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61701582.560778%
B61713245.250365%
C61711822.949279%
D617171011.505429%

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 7300 6171 6 6 0.08% 0.10%
B 7301 6172 182 182 2.49% 2.95%
C 7301 6172 102 102 1.40% 1.65%
D 7301 6172 590 590 8.08% 9.56%

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 2221515 14536.72 735 717 152.8
A 0 243 25877 164.69 735 717 152.8
A 15 174 11500 70.58 735 717 152.8
B 0 189 638985 4625.64 714 693 138.0
B 15 36 131512 948.03 714 693 138.0
B 5 255 93424 672.01 714 693 138.0
C 14 254 551854 3250.53 725 729 169.5
C 15 208 89073 521.05 725 729 169.5
C 2 14 16706 94.23 725 729 169.5
D 1 47 1320355 7427.64 705 685 177.7
D 13 174 743969 4183.51 705 685 177.7
D 5 235 268359 1506.58 705 685 177.7

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