ASTROSAT CZTI

Data Quality Report

Orbit 06468

Creation date: 2024-06-27T15:07:36.919873
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/AS1G06_139T02_9000000862_06468cztM0_level2.evt modeM0/AS1G06_139T02_9000000862_06468cztM0_level2_quad_clean.evt
Size (bytes)459,840,96074,701,440
Size438.5 MB 71.2 MB
Events in quadrant A3,746,689454,949
Events in quadrant B3,274,660468,694
Events in quadrant C3,271,955451,729
Events in quadrant D3,189,624431,283

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152923
B0137632
C0139212
D0137372

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6523420.643876%
B6523280.429250%
C6523310.475241%
D6524150.229920%

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 7833 6524 0 0 0.00% 0.00%
B 7833 6524 7 7 0.09% 0.11%
C 7833 6524 38 38 0.49% 0.58%
D 7834 6525 1 1 0.01% 0.02%

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 15 236 637749 3915.72 802 785 162.7
A 8 15 15293 89.19 802 785 162.7
A 0 226 7692 42.46 802 785 162.7
B 15 35 28346 179.18 817 799 153.7
B 0 229 26064 164.33 817 799 153.7
B 12 111 15647 96.58 817 799 153.7
C 1 16 203791 1123.2 782 787 180.7
C 12 4 8827 44.48 782 787 180.7
C 10 170 6997 34.36 782 787 180.7
D 8 195 90617 474.06 778 757 189.6
D 2 152 59457 309.67 778 757 189.6
D 2 136 34109 175.95 778 757 189.6

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