ASTROSAT CZTI

Data Quality Report

Orbit 51033

Creation date: 2025-03-05T19:17:59.906599
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/AS1C07_001T02_9000006452_51033cztM0_level2.fits modeM0/AS1C07_001T02_9000006452_51033cztM0_level2_quad_clean.evt
Size (bytes)740,321,28088,326,720
Size706.0 MB 84.2 MB
Events in quadrant A7,354,860585,372
Events in quadrant B6,523,960599,944
Events in quadrant C5,093,123586,185
Events in quadrant D7,900,300423,550

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0267584
B0241561
C0198421
D0282941

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A687376911.188709%
B6874116016.875182%
C68744586.662787%
D6874195628.455048%

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 7473 6873 620 620 8.30% 9.02%
B 7474 6874 697 697 9.33% 10.14%
C 7474 6875 251 251 3.36% 3.65%
D 7474 6875 1747 1747 23.37% 25.41%

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 12 3 1413125 8074.85 708 692 174.9
A 12 80 1138053 6502.27 708 692 174.9
A 10 253 881141 5033.51 708 692 174.9
B 12 32 1691285 11794.76 680 657 143.3
B 4 81 1061433 7400.56 680 657 143.3
B 5 185 336753 2344.79 680 657 143.3
C 10 69 884189 4688.31 693 687 188.4
C 1 44 365400 1935.35 693 687 188.4
C 3 233 207059 1095.11 693 687 188.4
D 8 176 4138105 24826.41 595 573 166.7
D 2 216 827397 4961.18 595 573 166.7
D 15 174 83071 495.01 595 573 166.7

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