ASTROSAT CZTI

Data Quality Report

Orbit 46353

Creation date: 2024-06-27T23:22:07.545059
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_070T05_9000006198_46353cztM0_level2.fits modeM0/AS1A13_070T05_9000006198_46353cztM0_level2_quad_clean.evt
Size (bytes)481,305,600100,074,240
Size459.0 MB 95.4 MB
Events in quadrant A6,038,383652,061
Events in quadrant B3,632,964669,067
Events in quadrant C2,770,842667,601
Events in quadrant D4,877,877594,804

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0222081
B0150471
C0129821
D0189541

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63971872.923245%
B63972964.627169%
C6397260.406441%
D63982784.345108%

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 7207 6398 40 40 0.56% 0.63%
B 7207 6398 152 152 2.11% 2.38%
C 7207 6397 0 0 0.00% 0.00%
D 7208 6398 201 201 2.79% 3.14%

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 2991129 20203.19 703 687 148.0
A 2 79 172572 1161.24 703 687 148.0
A 15 223 95218 638.64 703 687 148.0
B 4 171 323933 2334.97 700 679 138.4
B 5 172 254145 1830.87 700 679 138.4
B 15 201 161459 1161.37 700 679 138.4
C 4 254 13585 77.53 700 704 166.1
C 3 233 9994 55.92 700 704 166.1
C 12 2 8144 44.78 700 704 166.1
D 1 52 1107338 6307.31 688 665 175.5
D 5 235 504518 2871.63 688 665 175.5
D 13 138 176504 1002.17 688 665 175.5

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