ASTROSAT CZTI

Data Quality Report

Orbit 42005

Creation date: 2024-06-27T22:35:38.463645
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/AS1A12_011T26_9000005732_42005cztM0_level2.fits modeM0/AS1A12_011T26_9000005732_42005cztM0_level2_quad_clean.evt
Size (bytes)356,702,40090,601,920
Size340.2 MB 86.4 MB
Events in quadrant A3,148,640607,007
Events in quadrant B2,935,260605,541
Events in quadrant C2,625,698597,852
Events in quadrant D4,048,096531,592

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129913
B0129202
C0116012
D0161302

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5731230.401326%
B57311682.931426%
C573130.052347%
D57312915.077648%

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 7285 5732 7 7 0.10% 0.12%
B 7285 5731 149 149 2.05% 2.60%
C 7285 5731 0 0 0.00% 0.00%
D 7285 5732 230 230 3.16% 4.01%

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 607057 4850.16 607 594 125.0
A 12 189 109424 870.36 607 594 125.0
A 15 223 25544 199.54 607 594 125.0
B 0 186 373669 3194.29 597 580 116.8
B 5 255 116865 995.6 597 580 116.8
B 0 190 75826 644.24 597 580 116.8
C 15 214 236021 1668.37 599 603 141.1
C 7 220 18959 130.09 599 603 141.1
C 3 233 14398 97.76 599 603 141.1
D 13 249 810693 5646.29 584 568 143.5
D 1 52 649324 4521.6 584 568 143.5
D 10 199 124443 863.37 584 568 143.5

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