ASTROSAT CZTI

Data Quality Report

Orbit 30531

Creation date: 2024-06-27T20:16:37.288871
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/AS1A10_053T15_9000004392_30531cztM0_level2.evt modeM0/AS1A10_053T15_9000004392_30531cztM0_level2_quad_clean.evt
Size (bytes)608,567,04078,687,360
Size580.4 MB 75.0 MB
Events in quadrant A3,240,149496,274
Events in quadrant B5,333,129490,583
Events in quadrant C3,403,422470,663
Events in quadrant D6,006,583463,879

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136691
B0204771
C0141251
D0223021

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6614851.285153%
B66152173.280423%
C66151672.524565%
D66153665.532880%

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 7209 6615 1 1 0.01% 0.02%
B 7210 6616 18 18 0.25% 0.27%
C 7210 6616 48 48 0.67% 0.73%
D 7210 6616 309 309 4.29% 4.67%

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 8 192 13332 74.37 832 816 168.3
A 13 254 12235 67.85 832 816 168.3
A 15 192 9448 51.29 832 816 168.3
B 6 159 1892429 12155.71 811 791 155.6
B 6 36 138571 885.38 811 791 155.6
B 0 229 66207 420.36 811 791 155.6
C 3 233 149310 801.98 784 790 185.2
C 14 238 128812 691.29 784 790 185.2
C 10 22 31553 166.11 784 790 185.2
D 1 52 2172281 10612.49 786 770 204.6
D 8 195 633718 3093.31 786 770 204.6
D 13 249 142358 691.96 786 770 204.6

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