ASTROSAT CZTI

Data Quality Report

Orbit 03283

Creation date: 2024-06-27T14:27:05.416298
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_228T02_9000000446_03283cztM0_level2.evt modeM0/AS1G05_228T02_9000000446_03283cztM0_level2_quad_clean.evt
Size (bytes)447,186,24058,515,840
Size426.5 MB 55.8 MB
Events in quadrant A2,789,926351,593
Events in quadrant B4,088,685350,803
Events in quadrant C3,025,325350,546
Events in quadrant D3,268,205336,368

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120740
B0159850
C0126290
D0136850

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A54651132.067704%
B54651582.891125%
C5465691.262580%
D54651893.458371%

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 6600 5466 65 65 0.98% 1.19%
B 6600 5466 88 88 1.33% 1.61%
C 6600 5466 53 53 0.80% 0.97%
D 6600 5466 177 177 2.68% 3.24%

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 0 50 262748 2007.99 631 618 130.5
A 0 118 62459 473.72 631 618 130.5
A 0 31 14740 108.18 631 618 130.5
B 15 204 1090128 8631.14 640 625 126.2
B 2 249 482208 3815.14 640 625 126.2
B 5 200 22296 171.68 640 625 126.2
C 1 192 353894 2472.19 609 612 142.9
C 14 223 132798 925.01 609 612 142.9
C 12 4 92705 644.45 609 612 142.9
D 13 223 735323 5013.36 601 582 146.6
D 7 39 150408 1022.31 601 582 146.6
D 5 233 46679 314.53 601 582 146.6

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