ASTROSAT CZTI

Data Quality Report

Orbit 45411

Creation date: 2024-06-27T23:11:08.555578
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_049T07_9000006056_45411cztM0_level2.fits modeM0/AS1A13_049T07_9000006056_45411cztM0_level2_quad_clean.evt
Size (bytes)1,111,803,840236,462,400
Size1.0 GB 225.5 MB
Events in quadrant A12,840,3931,567,832
Events in quadrant B7,397,0951,630,457
Events in quadrant C7,158,3561,561,936
Events in quadrant D12,588,0541,352,723

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0481853
B0322963
C0321723
D0478648

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03100
B03100
C03100
D03100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A151545483.616207%
B151544032.659364%
C151552651.748598%
D1515210887.180570%

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 16984 15154 101 101 0.59% 0.67%
B 16984 15154 95 95 0.56% 0.63%
C 16985 15155 59 59 0.35% 0.39%
D 16984 15153 754 754 4.44% 4.98%

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 5776084 16351.84 1706 1670 353.1
A 10 248 211323 593.69 1706 1670 353.1
A 9 191 94660 263.33 1706 1670 353.1
B 0 186 301986 889.22 1709 1655 337.7
B 15 201 104393 304.19 1709 1655 337.7
B 4 67 51785 148.43 1709 1655 337.7
C 0 239 291190 728.52 1687 1696 397.4
C 14 254 143763 357.52 1687 1696 397.4
C 14 96 64277 157.49 1687 1696 397.4
D 1 52 2702583 6564.11 1647 1594 411.5
D 11 241 1420785 3449.01 1647 1594 411.5
D 2 249 1049332 2546.28 1647 1594 411.5

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