ASTROSAT CZTI

Data Quality Report

Orbit 11622

Creation date: 2024-06-27T16:16:01.813820
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/AS1A04_198T01_9000001708_11622cztM0_level2.evt modeM0/AS1A04_198T01_9000001708_11622cztM0_level2_quad_clean.evt
Size (bytes)772,182,72067,726,080
Size736.4 MB 64.6 MB
Events in quadrant A5,827,218399,216
Events in quadrant B3,544,610441,841
Events in quadrant C3,099,890436,961
Events in quadrant D10,497,512341,799

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0216282
B0142091
C0130511
D0352551

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A615788614.390125%
B61571662.696118%
C6157801.299334%
D6157337854.864382%

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 7393 6159 530 530 7.17% 8.61%
B 7393 6159 36 36 0.49% 0.58%
C 7393 6159 0 0 0.00% 0.00%
D 7393 6153 2936 2936 39.71% 47.72%

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 8 5 2703033 17869.99 751 738 151.2
A 1 162 85494 560.48 751 738 151.2
A 1 178 50090 326.36 751 738 151.2
B 4 239 218653 1473.85 798 780 147.8
B 3 64 85444 572.73 798 780 147.8
B 11 51 64554 431.41 798 780 147.8
C 8 128 12538 65.39 788 792 179.6
C 13 61 5778 27.76 788 792 179.6
C 8 112 5714 27.4 788 792 179.6
D 13 122 4526104 36920.5 522 508 122.6
D 13 152 3723105 30369.52 522 508 122.6
D 13 104 135349 1100.05 522 508 122.6

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