ASTROSAT CZTI

Data Quality Report

Orbit 22191

Creation date: 2024-06-27T18:37:54.493534
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_065T01_9000003284_22191cztM0_level2.evt modeM0/AS1A07_065T01_9000003284_22191cztM0_level2_quad_clean.evt
Size (bytes)435,156,48086,042,880
Size415.0 MB 82.1 MB
Events in quadrant A3,004,372558,872
Events in quadrant B3,003,066567,777
Events in quadrant C3,005,366540,035
Events in quadrant D3,752,217514,071

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124881
B0125051
C0125061
D0150241

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6083380.624692%
B6083360.591813%
C6084590.969757%
D60842544.174885%

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 7253 6084 0 0 0.00% 0.00%
B 7253 6084 0 0 0.00% 0.00%
C 7254 6085 0 0 0.00% 0.00%
D 7254 6085 216 216 2.98% 3.55%

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 13 254 10977 65.47 776 763 156.0
A 4 2 9953 58.91 776 763 156.0
A 0 226 6757 38.42 776 763 156.0
B 12 111 17527 116.22 765 744 144.4
B 11 111 15778 104.11 765 744 144.4
B 14 111 13779 90.27 765 744 144.4
C 14 238 116061 666.1 738 742 173.1
C 10 22 14299 78.31 738 742 173.1
C 13 61 5201 25.76 738 742 173.1
D 12 235 461481 2561.87 739 718 179.9
D 1 52 443288 2460.72 739 718 179.9
D 2 234 23568 127.05 739 718 179.9

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