ASTROSAT CZTI

Data Quality Report

Orbit 10480

Creation date: 2024-06-27T15:59:59.310450
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/AS1A03_084T01_9000001514_10480cztM0_level2.evt modeM0/AS1A03_084T01_9000001514_10480cztM0_level2_quad_clean.evt
Size (bytes)637,323,84060,048,000
Size607.8 MB 57.3 MB
Events in quadrant A8,946,950264,428
Events in quadrant B3,383,597388,745
Events in quadrant C2,997,829375,769
Events in quadrant D3,552,423355,739

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0304692
B0137081
C0128071
D0144101

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6200286646.225806%
B62001211.951613%
C6200941.516129%
D6200991.596774%

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 7395 6199 2749 2749 37.17% 44.35%
B 7395 6200 12 12 0.16% 0.19%
C 7396 6200 0 0 0.00% 0.00%
D 7396 6201 10 10 0.14% 0.16%

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 15 239 6747104 59634.52 548 536 113.1
A 3 80 44574 389.26 548 536 113.1
A 5 16 14883 126.82 548 536 113.1
B 4 239 192786 1286.23 790 773 149.3
B 11 51 59188 391.3 790 773 149.3
B 0 214 27387 178.28 790 773 149.3
C 14 234 6807 33.9 767 771 178.1
C 13 61 5668 27.5 767 771 178.1
C 14 67 2185 7.94 767 771 178.1
D 8 195 344320 1901.67 755 735 180.7
D 1 20 160734 885.56 755 735 180.7
D 1 52 104012 571.62 755 735 180.7

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