ASTROSAT CZTI

Data Quality Report

Orbit 42662

Creation date: 2024-06-27T22:42:46.337343
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/AS1A05_013T01_9000005822_42662cztM0_level2.fits modeM0/AS1A05_013T01_9000005822_42662cztM0_level2_quad_clean.evt
Size (bytes)362,004,48093,821,760
Size345.2 MB 89.5 MB
Events in quadrant A2,987,886657,360
Events in quadrant B3,471,282637,021
Events in quadrant C2,888,187624,720
Events in quadrant D3,649,032558,633

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0117802
B0135492
C0114562
D0143132

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0330
C0330
D0330

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5186160.308523%
B51863526.787505%
C51861062.043965%
D51862865.514848%

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 7249 5187 5 5 0.07% 0.10%
B 7249 5187 298 298 4.11% 5.75%
C 7249 5187 97 97 1.34% 1.87%
D 7249 5187 254 254 3.50% 4.90%

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 547258 4330.75 621 610 126.2
A 13 248 29732 230.72 621 610 126.2
A 3 137 6641 47.78 621 610 126.2
B 3 112 949082 8358.95 596 581 113.5
B 0 245 85007 744.03 596 581 113.5
B 0 229 47876 416.8 596 581 113.5
C 9 54 245670 1757.72 603 606 139.4
C 15 214 216257 1546.76 603 606 139.4
C 8 95 57839 410.5 603 606 139.4
D 2 249 450458 3149.53 588 572 142.8
D 12 233 242745 1695.39 588 572 142.8
D 13 249 231250 1614.92 588 572 142.8

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