ASTROSAT CZTI

Data Quality Report

Orbit 22583

Creation date: 2024-06-27T18:43:12.209077
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/AS1C05_013T01_9000003350_22583cztM0_level2.evt modeM0/AS1C05_013T01_9000003350_22583cztM0_level2_quad_clean.evt
Size (bytes)370,900,800106,266,240
Size353.7 MB 101.3 MB
Events in quadrant A2,466,373716,729
Events in quadrant B2,758,885726,255
Events in quadrant C2,582,507707,585
Events in quadrant D3,056,625689,338

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110511
B0119111
C0112201
D0128491

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B070
C070
D070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5410170.314233%
B54101102.033272%
C5410701.293900%
D5410931.719039%

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 5410 5410 0 0 0.00% 0.00%
B 5410 5410 9 9 0.17% 0.17%
C 5410 5410 1 1 0.02% 0.02%
D 5410 5410 69 69 1.28% 1.28%

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 13 34 10817 79.98 636 622 127.5
A 13 254 9160 66.98 636 622 127.5
A 0 226 5471 38.04 636 622 127.5
B 15 33 184893 1549.2 635 620 118.9
B 0 190 28891 237.68 635 620 118.9
B 15 35 19217 156.35 635 620 118.9
C 14 238 99447 686.72 620 623 143.9
C 10 222 25948 175.98 620 623 143.9
C 10 22 18676 125.45 620 623 143.9
D 1 52 435738 2865.25 623 603 151.9
D 12 227 219248 1439.72 623 603 151.9
D 2 234 23747 152.4 623 603 151.9

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