ASTROSAT CZTI

Data Quality Report

Orbit 40997

Creation date: 2024-06-27T22:23:07.953628
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_066T01_9000005584_40997cztM0_level2.fits modeM0/AS1A12_066T01_9000005584_40997cztM0_level2_quad_clean.evt
Size (bytes)312,814,08090,230,400
Size298.3 MB 86.1 MB
Events in quadrant A2,807,967625,194
Events in quadrant B2,484,649632,811
Events in quadrant C2,644,266584,259
Events in quadrant D3,255,411542,155

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0112913
B0104752
C0106872
D0129402

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0310
C0310
D0320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4967130.261727%
B4967330.664385%
C4967641.288504%
D49671623.261526%

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 7090 4968 4 4 0.06% 0.08%
B 7090 4968 25 25 0.35% 0.50%
C 7090 4968 60 60 0.85% 1.21%
D 7089 4967 154 154 2.17% 3.10%

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 486703 4025.63 593 583 120.8
A 12 189 20091 161.55 593 583 120.8
A 13 254 7793 59.71 593 583 120.8
B 5 255 164158 1470.34 587 572 111.3
B 12 111 14049 121.13 587 572 111.3
B 11 111 13176 113.29 587 572 111.3
C 15 214 213597 1611.38 567 571 132.2
C 0 10 179070 1350.21 567 571 132.2
C 12 249 26780 198.25 567 571 132.2
D 12 233 340870 2501.55 566 550 136.0
D 13 249 322304 2365.08 566 550 136.0
D 2 249 293388 2152.53 566 550 136.0

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