ASTROSAT CZTI

Data Quality Report

Orbit 41219

Creation date: 2024-06-27T22:26:06.585553
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/AS1C07_001T12_9000005632_41219cztM0_level2.fits modeM0/AS1C07_001T12_9000005632_41219cztM0_level2_quad_clean.evt
Size (bytes)358,125,12092,122,560
Size341.5 MB 87.9 MB
Events in quadrant A3,054,858624,092
Events in quadrant B3,501,000611,852
Events in quadrant C2,795,097602,213
Events in quadrant D3,455,865546,864

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126943
B0148022
C0122082
D0143902

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5776210.363573%
B57762574.449446%
C5776611.056094%
D57762113.653047%

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 7058 5777 8 8 0.11% 0.14%
B 7058 5777 188 188 2.66% 3.25%
C 7058 5777 60 60 0.85% 1.04%
D 7058 5777 199 199 2.82% 3.44%

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 10 83 563524 4501.42 609 595 125.1
A 0 8 97361 773.78 609 595 125.1
A 13 248 16334 125.86 609 595 125.1
B 0 186 1050429 9038.15 596 577 116.2
B 0 245 85753 733.28 596 577 116.2
B 12 111 14593 120.66 596 577 116.2
C 15 214 246478 1776.12 591 594 138.4
C 0 10 175338 1262.25 591 594 138.4
C 9 54 59808 427.73 591 594 138.4
D 2 249 577950 4018.66 588 571 143.7
D 13 249 178523 1238.58 588 571 143.7
D 1 47 133329 924.02 588 571 143.7

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