ASTROSAT CZTI

Data Quality Report

Orbit 16386

Creation date: 2024-06-27T17:21:56.723177
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/AS1A05_069T05_9000002420_16386cztM0_level2.evt modeM0/AS1A05_069T05_9000002420_16386cztM0_level2_quad_clean.evt
Size (bytes)467,772,48065,989,440
Size446.1 MB 62.9 MB
Events in quadrant A3,248,694399,714
Events in quadrant B3,699,972408,487
Events in quadrant C3,214,399383,263
Events in quadrant D3,575,155366,194

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132943
B0148202
C0132492
D0147912

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6309500.792519%
B63091021.616738%
C6309630.998573%
D6309931.474085%

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 7640 6311 1 1 0.01% 0.02%
B 7640 6311 7 7 0.09% 0.11%
C 7640 6311 0 0 0.00% 0.00%
D 7640 6311 66 66 0.86% 1.05%

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 15 223 43068 260.0 821 805 162.6
A 15 239 17642 103.58 821 805 162.6
A 9 143 17156 100.59 821 805 162.6
B 15 35 174995 1117.83 827 808 155.8
B 0 189 101891 648.69 827 808 155.8
B 0 244 49353 311.53 827 808 155.8
C 14 238 121830 669.45 780 786 180.8
C 3 233 43787 237.82 780 786 180.8
C 10 169 5854 28.03 780 786 180.8
D 10 70 315867 1645.32 783 760 191.5
D 2 122 205842 1070.82 783 760 191.5
D 12 218 57543 296.49 783 760 191.5

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