ASTROSAT CZTI

Data Quality Report

Orbit 13444

Creation date: 2024-06-27T16:40:52.509276
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_103T01_9000001988_13444cztM0_level2.evt modeM0/AS1A04_103T01_9000001988_13444cztM0_level2_quad_clean.evt
Size (bytes)446,561,28066,196,800
Size425.9 MB 63.1 MB
Events in quadrant A3,118,074395,168
Events in quadrant B3,207,853403,342
Events in quadrant C3,103,987394,754
Events in quadrant D3,668,873374,047

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133663
B0135682
C0133832
D0149662

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6266681.085222%
B6266701.117140%
C6266530.845835%
D62661131.803383%

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 7432 6267 0 0 0.00% 0.00%
B 7432 6267 1 1 0.01% 0.02%
C 7432 6267 2 2 0.03% 0.03%
D 7432 6267 75 75 1.01% 1.20%

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 69 13626 79.66 803 788 161.2
A 1 162 11109 64.04 803 788 161.2
A 0 226 7089 39.1 803 788 161.2
B 0 214 45658 295.31 801 782 152.0
B 12 111 17559 110.4 801 782 152.0
B 3 209 15619 97.64 801 782 152.0
C 3 233 34022 185.0 782 784 179.7
C 14 220 21764 116.77 782 784 179.7
C 13 61 5539 26.47 782 784 179.7
D 13 249 638295 3474.78 773 753 183.5
D 8 195 86732 468.61 773 753 183.5
D 2 234 22530 118.69 773 753 183.5

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