ASTROSAT CZTI

Data Quality Report

Orbit 24333

Creation date: 2024-06-27T19:04:52.403705
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/AS1A07_145T01_9000003594_24333cztM0_level2.evt modeM0/AS1A07_145T01_9000003594_24333cztM0_level2_quad_clean.evt
Size (bytes)529,963,200104,832,000
Size505.4 MB 100.0 MB
Events in quadrant A3,268,881683,673
Events in quadrant B3,328,676712,719
Events in quadrant C4,925,132672,066
Events in quadrant D4,080,091646,402

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138832
B0139382
C0194082
D0164792

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0220
C0220
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6606260.393582%
B6606470.711474%
C66062033.072964%
D6606801.211020%

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 7916 6607 0 0 0.00% 0.00%
B 7916 6607 0 0 0.00% 0.00%
C 7916 6606 16 16 0.20% 0.24%
D 7916 6606 27 27 0.34% 0.41%

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 3 1 28324 165.35 841 827 166.3
A 13 254 9959 54.91 841 827 166.3
A 0 226 7202 38.34 841 827 166.3
B 12 111 18909 113.24 849 829 159.7
B 11 111 16598 98.77 849 829 159.7
B 14 111 15217 90.12 849 829 159.7
C 7 247 1496111 8006.74 809 817 186.8
C 14 238 131136 697.81 809 817 186.8
C 2 16 123054 654.53 809 817 186.8
D 7 223 460693 2361.83 809 787 194.7
D 1 52 177485 907.43 809 787 194.7
D 9 35 129073 658.81 809 787 194.7

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