ASTROSAT CZTI

Data Quality Report

Orbit 48304

Creation date: 2024-09-06T12:03:07.957922
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_029T01_9000006422_48304cztM0_level2.fits modeM0/AS1A13_029T01_9000006422_48304cztM0_level2_quad_clean.evt
Size (bytes)498,960,000107,159,040
Size475.8 MB 102.2 MB
Events in quadrant A7,245,854698,938
Events in quadrant B3,556,254735,554
Events in quadrant C3,058,547708,045
Events in quadrant D4,096,809641,432

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0261501
B0149201
C0138481
D0168361

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66084246.416465%
B66081902.875303%
C6608971.467918%
D66082313.495763%

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 7428 6608 43 43 0.58% 0.65%
B 7428 6609 13 13 0.18% 0.20%
C 7428 6609 4 4 0.05% 0.06%
D 7428 6609 102 102 1.37% 1.54%

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 4011224 24809.54 767 749 161.7
A 0 31 185004 1139.84 767 749 161.7
A 13 248 76065 465.92 767 749 161.7
B 4 21 161794 1050.35 772 748 153.3
B 0 200 159521 1035.52 772 748 153.3
B 5 255 83064 536.87 772 748 153.3
C 0 207 58175 318.88 762 767 180.0
C 14 254 16372 86.68 762 767 180.0
C 12 2 9496 48.49 762 767 180.0
D 2 165 520921 2676.25 762 738 194.4
D 12 2 355666 1826.05 762 738 194.4
D 13 29 98333 502.11 762 738 194.4

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