ASTROSAT CZTI

Data Quality Report

Orbit 34005

Creation date: 2024-06-27T20:55:16.930935
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/AS1A11_106T03_9000004864_34005cztM0_level2.evt modeM0/AS1A11_106T03_9000004864_34005cztM0_level2_quad_clean.evt
Size (bytes)462,214,08056,335,680
Size440.8 MB 53.7 MB
Events in quadrant A2,523,728346,916
Events in quadrant B3,148,804337,964
Events in quadrant C3,188,394333,874
Events in quadrant D4,779,763317,494

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0230

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0106592
B0125121
C0123671
D0178911

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A527690.170584%
B52761402.653525%
C5276901.705838%
D52762574.871114%

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 7190 5277 0 0 0.00% 0.00%
B 7190 5277 108 108 1.50% 2.05%
C 7190 5277 79 79 1.10% 1.50%
D 7190 5277 231 231 3.21% 4.38%

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 13 6 43109 334.72 637 622 126.9
A 10 83 17039 129.34 637 622 126.9
A 13 254 10364 76.75 637 622 126.9
B 5 172 395179 3330.84 623 607 118.5
B 0 190 80276 672.54 623 607 118.5
B 0 189 65045 543.96 623 607 118.5
C 15 214 230900 1645.72 609 616 139.9
C 4 254 214809 1530.73 609 616 139.9
C 3 233 167653 1193.73 609 616 139.9
D 8 195 986380 6044.55 603 589 163.1
D 13 249 350427 2145.09 603 589 163.1
D 2 152 222828 1362.7 603 589 163.1

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