ASTROSAT CZTI

Data Quality Report

Orbit 42392

Creation date: 2024-06-27T22:39:46.035882
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/AS1C06_010T01_9000005800_42392cztM0_level2.fits modeM0/AS1C06_010T01_9000005800_42392cztM0_level2_quad_clean.evt
Size (bytes)338,178,24092,062,080
Size322.5 MB 87.8 MB
Events in quadrant A3,037,762614,414
Events in quadrant B2,806,907613,468
Events in quadrant C3,136,890601,683
Events in quadrant D3,095,791562,233

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0250
C0250
D0250

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126662
B0124652
C0130262
D0132702

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5660220.388693%
B5660751.325088%
C5660520.918728%
D5660661.166078%

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 7033 5661 7 7 0.10% 0.12%
B 7033 5661 41 41 0.58% 0.72%
C 7033 5661 42 42 0.60% 0.74%
D 7033 5661 46 46 0.65% 0.81%

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 618214 4951.76 598 585 124.7
A 14 223 54050 428.64 598 585 124.7
A 3 1 16533 127.86 598 585 124.7
B 5 172 169946 1489.97 590 573 113.7
B 5 255 73809 644.26 590 573 113.7
B 15 35 68271 595.54 590 573 113.7
C 4 254 543067 3965.27 583 586 136.8
C 15 214 232712 1696.73 583 586 136.8
C 14 254 61689 446.63 583 586 136.8
D 1 52 305725 2144.06 586 570 142.3
D 1 47 84036 586.44 586 570 142.3
D 12 233 66409 462.59 586 570 142.3

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