ASTROSAT CZTI

Data Quality Report

Orbit 43710

Creation date: 2024-06-27T22:54:51.575439
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_003T01_9000005902_43710cztM0_level2.fits modeM0/AS1A13_003T01_9000005902_43710cztM0_level2_quad_clean.evt
Size (bytes)836,602,560119,943,360
Size797.8 MB 114.4 MB
Events in quadrant A9,862,366793,372
Events in quadrant B4,239,483874,501
Events in quadrant C6,899,584764,024
Events in quadrant D9,367,419659,329

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0347990
B0179330
C0258350
D0331910

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A776980710.387437%
B77691722.213927%
C777087111.209781%
D7769147118.934226%

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 7769 7769 290 290 3.73% 3.73%
B 7769 7769 85 85 1.09% 1.09%
C 7770 7770 621 621 7.99% 7.99%
D 7769 7769 1028 1028 13.23% 13.23%

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 15 222 4365074 24157.83 869 851 180.7
A 10 83 846883 4683.15 869 851 180.7
A 14 63 653144 3610.72 869 851 180.7
B 5 235 498892 2824.02 892 864 176.4
B 0 199 81799 458.93 892 864 176.4
B 4 206 46485 258.69 892 864 176.4
C 15 157 2628111 13005.06 847 851 202.0
C 3 233 562776 2781.56 847 851 202.0
C 15 158 196017 966.08 847 851 202.0
D 12 33 1112629 5205.79 832 806 213.6
D 8 48 775490 3627.23 832 806 213.6
D 5 235 695803 3254.12 832 806 213.6

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