ASTROSAT CZTI

Data Quality Report

Orbit 03067

Creation date: 2024-06-27T14:24:11.614643
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/AS1G05_238T03_9000000424_03067cztM0_level2.evt modeM0/AS1G05_238T03_9000000424_03067cztM0_level2_quad_clean.evt
Size (bytes)389,612,16047,252,160
Size371.6 MB 45.1 MB
Events in quadrant A2,841,133279,601
Events in quadrant B3,883,873272,837
Events in quadrant C2,257,749272,639
Events in quadrant D2,484,737262,592

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0116253
B0148052
C099542
D0106722

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0270

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A488340.081917%
B48831022.088880%
C488350.102396%
D4883310.634856%

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 7038 4884 0 0 0.00% 0.00%
B 7038 4884 65 65 0.92% 1.33%
C 7038 4884 1 1 0.01% 0.02%
D 7038 4884 28 28 0.40% 0.57%

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 15 515564 4456.1 577 566 115.6
A 12 189 48788 417.24 577 566 115.6
A 14 238 33761 287.22 577 566 115.6
B 15 204 1506231 13757.25 580 568 109.4
B 2 249 30950 277.6 580 568 109.4
B 0 219 30874 276.91 580 568 109.4
C 1 16 23983 181.94 551 556 128.8
C 15 208 22667 171.72 551 556 128.8
C 6 80 22393 169.59 551 556 128.8
D 12 217 121270 824.72 545 536 146.4
D 7 6 75741 513.72 545 536 146.4
D 2 152 62107 420.58 545 536 146.4

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