ASTROSAT CZTI

Data Quality Report

Orbit 03169

Creation date: 2024-06-27T14:25:28.455449
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_218T02_9000000434_03169cztM0_level2.evt modeM0/AS1G05_218T02_9000000434_03169cztM0_level2_quad_clean.evt
Size (bytes)396,944,64073,869,120
Size378.6 MB 70.4 MB
Events in quadrant A2,843,642459,839
Events in quadrant B3,031,873471,044
Events in quadrant C2,833,426451,835
Events in quadrant D2,902,284433,059

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124822
B0129491
C0125581
D0129781

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6029801.326920%
B6029981.625477%
C6029430.713219%
D6029600.995190%

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 7294 6029 16 16 0.22% 0.27%
B 7294 6029 29 29 0.40% 0.48%
C 7294 6030 0 0 0.00% 0.00%
D 7294 6030 17 17 0.23% 0.28%

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 12 247 49512 336.15 712 697 145.2
A 8 15 44927 304.57 712 697 145.2
A 12 194 7725 48.39 712 697 145.2
B 4 80 61449 446.37 722 707 136.1
B 2 249 57354 416.27 722 707 136.1
B 5 70 49464 358.29 722 707 136.1
C 1 192 76225 479.72 683 686 157.5
C 15 208 39438 246.1 683 686 157.5
C 6 80 15052 91.23 683 686 157.5
D 2 136 83355 509.06 678 657 162.5
D 5 233 51494 312.93 678 657 162.5
D 13 239 38856 235.14 678 657 162.5

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