ASTROSAT CZTI

Data Quality Report

Orbit 24332

Creation date: 2024-06-27T19:04:51.516947
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_145T01_9000003594_24332cztM0_level2.evt modeM0/AS1A07_145T01_9000003594_24332cztM0_level2_quad_clean.evt
Size (bytes)465,120,000106,240,320
Size443.6 MB 101.3 MB
Events in quadrant A3,084,599700,198
Events in quadrant B3,186,008733,621
Events in quadrant C3,622,575697,211
Events in quadrant D3,782,092663,722

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129182
B0131942
C0148272
D0152302

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6052460.760079%
B6052691.140119%
C6052931.536682%
D6052590.974884%

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 7387 6052 0 0 0.00% 0.00%
B 7387 6052 3 3 0.04% 0.05%
C 7387 6052 0 0 0.00% 0.00%
D 7387 6052 27 27 0.37% 0.45%

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 3 1 20738 127.07 795 781 157.1
A 13 254 8465 48.93 795 781 157.1
A 3 137 6725 37.85 795 781 157.1
B 5 172 21133 136.25 803 785 149.3
B 12 111 17535 112.16 803 785 149.3
B 0 230 16090 102.48 803 785 149.3
C 7 247 411128 2299.74 776 783 178.4
C 14 238 126532 704.75 776 783 178.4
C 2 16 39070 214.58 776 783 178.4
D 7 223 552316 2962.62 772 750 186.2
D 1 52 179653 960.94 772 750 186.2
D 7 238 60310 319.91 772 750 186.2

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