ASTROSAT CZTI

Data Quality Report

Orbit 42372

Creation date: 2024-06-27T22:39:31.747584
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/AS1C06_010T01_9000005800_42372cztM0_level2.fits modeM0/AS1C06_010T01_9000005800_42372cztM0_level2_quad_clean.evt
Size (bytes)330,240,96089,579,520
Size314.9 MB 85.4 MB
Events in quadrant A2,891,018622,973
Events in quadrant B2,704,321617,731
Events in quadrant C2,498,949592,817
Events in quadrant D3,738,435526,689

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0115132
B0112493
C0102602
D0144412

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5027120.238711%
B5026581.153999%
C502720.039785%
D50273607.161329%

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 7060 5028 2 2 0.03% 0.04%
B 7059 5027 35 35 0.50% 0.70%
C 7060 5028 0 0 0.00% 0.00%
D 7060 5028 312 312 4.42% 6.21%

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 598481 5107.57 576 565 117.1
A 13 248 30133 252.58 576 565 117.1
A 10 255 12465 101.65 576 565 117.1
B 5 172 120378 1131.11 561 547 105.9
B 7 221 96127 902.2 561 547 105.9
B 15 35 60597 566.82 561 547 105.9
C 15 214 217809 1699.81 554 557 127.8
C 8 79 96565 751.18 554 557 127.8
C 12 249 7819 56.82 554 557 127.8
D 12 233 738471 5583.53 549 534 132.2
D 10 118 256681 1938.11 549 534 132.2
D 10 199 147596 1112.73 549 534 132.2

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