ASTROSAT CZTI

Data Quality Report

Orbit 04514

Creation date: 2024-06-27T14:43:06.292781
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/AS1G05_083T03_9000000566_04514cztM0_level2.evt modeM0/AS1G05_083T03_9000000566_04514cztM0_level2_quad_clean.evt
Size (bytes)436,256,64069,402,240
Size416.0 MB 66.2 MB
Events in quadrant A3,229,355422,829
Events in quadrant B3,038,133419,431
Events in quadrant C2,713,385422,010
Events in quadrant D3,807,629402,296

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139481
B0132751
C0126741
D0157371

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62321021.636714%
B6232230.369063%
C623280.128370%
D62322624.204108%

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 6817 6233 52 52 0.76% 0.83%
B 6817 6233 5 5 0.07% 0.08%
C 6817 6233 1 1 0.01% 0.02%
D 6817 6233 207 207 3.04% 3.32%

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 0 13 278085 1920.96 696 680 144.4
A 0 118 128959 888.3 696 680 144.4
A 0 50 68112 466.95 696 680 144.4
B 15 204 110950 803.28 705 688 137.3
B 10 246 37859 270.8 705 688 137.3
B 4 48 37044 264.86 705 688 137.3
C 9 247 18661 112.33 682 686 160.0
C 14 48 14864 88.6 682 686 160.0
C 9 54 6917 38.94 682 686 160.0
D 9 35 587947 3583.03 671 652 163.9
D 11 132 259704 1580.45 671 652 163.9
D 13 235 96234 583.14 671 652 163.9

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