ASTROSAT CZTI

Data Quality Report

Orbit 17458

Creation date: 2024-06-27T17:36:48.061442
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/AS1T03_067T01_9000002582_17458cztM0_level2.evt modeM0/AS1T03_067T01_9000002582_17458cztM0_level2_quad_clean.evt
Size (bytes)522,780,48080,755,200
Size498.6 MB 77.0 MB
Events in quadrant A3,301,912511,560
Events in quadrant B4,054,350514,839
Events in quadrant C3,356,057486,432
Events in quadrant D4,667,967467,730

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138872
B0162352
C0139342
D0181182

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6662691.035725%
B66621221.831282%
C6662971.456019%
D66624216.319424%

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 7772 6663 0 0 0.00% 0.00%
B 7772 6663 43 43 0.55% 0.65%
C 7772 6663 0 0 0.00% 0.00%
D 7772 6663 329 329 4.23% 4.94%

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 6 16 34528 200.45 846 831 168.1
A 0 226 7694 40.83 846 831 168.1
A 12 194 6470 33.54 846 831 168.1
B 7 220 385226 2467.74 838 819 155.8
B 4 48 168028 1073.41 838 819 155.8
B 15 35 98548 627.38 838 819 155.8
C 14 238 126432 685.93 799 804 183.1
C 3 233 84627 457.68 799 804 183.1
C 7 220 22936 120.84 799 804 183.1
D 13 189 882839 4547.78 805 782 194.0
D 13 232 323256 1662.64 805 782 194.0
D 13 168 151327 776.19 805 782 194.0

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