ASTROSAT CZTI

Data Quality Report

Orbit 43184

Creation date: 2024-06-27T22:49:01.239261
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/AS1A09_036T17_9000005858_43184cztM0_level2.fits modeM0/AS1A09_036T17_9000005858_43184cztM0_level2_quad_clean.evt
Size (bytes)367,488,00092,439,360
Size350.5 MB 88.2 MB
Events in quadrant A4,490,659591,822
Events in quadrant B3,197,050645,396
Events in quadrant C2,771,520619,562
Events in quadrant D2,729,637569,713

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0168912
B0130312
C0113932
D0117542

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0230
C0230
D0230

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A53234839.073831%
B53231312.461018%
C5323150.281796%
D5323651.221116%

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 7416 5324 420 420 5.66% 7.89%
B 7416 5324 73 73 0.98% 1.37%
C 7416 5324 14 14 0.19% 0.26%
D 7416 5324 56 56 0.76% 1.05%

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 15 222 1089345 8994.19 592 581 121.1
A 10 83 561780 4636.02 592 581 121.1
A 15 237 410037 3382.48 592 581 121.1
B 0 186 442491 3770.53 603 588 117.2
B 0 229 259422 2208.5 603 588 117.2
B 5 255 100706 854.25 603 588 117.2
C 15 214 224328 1598.74 597 603 139.9
C 0 239 77627 550.42 597 603 139.9
C 4 254 71546 506.96 597 603 139.9
D 1 52 180386 1220.63 600 582 147.3
D 12 233 159993 1082.19 600 582 147.3
D 2 249 38876 259.97 600 582 147.3

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