ASTROSAT CZTI

Data Quality Report

Orbit 43198

Creation date: 2024-06-27T22:49:11.958670
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_43198cztM0_level2.fits modeM0/AS1A09_036T17_9000005858_43198cztM0_level2_quad_clean.evt
Size (bytes)418,847,04087,868,800
Size399.4 MB 83.8 MB
Events in quadrant A3,347,213625,576
Events in quadrant B6,263,447464,582
Events in quadrant C2,803,415622,948
Events in quadrant D2,673,914573,679

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132671
B0222551
C0115181
D0116201

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5344891.665419%
B5345170831.955098%
C5345230.430309%
D5345190.355472%

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 7406 5345 81 81 1.09% 1.52%
B 7407 5346 1528 1528 20.63% 28.58%
C 7407 5346 20 20 0.27% 0.37%
D 7407 5346 15 15 0.20% 0.28%

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 10 83 576870 4676.86 607 594 123.2
A 15 237 286832 2323.01 607 594 123.2
A 12 189 78993 636.26 607 594 123.2
B 0 229 4096242 39906.34 538 525 102.6
B 0 189 17321 163.65 538 525 102.6
B 0 186 14196 133.2 538 525 102.6
C 15 214 223363 1583.7 601 606 140.7
C 14 254 99328 701.87 601 606 140.7
C 4 254 71894 506.83 601 606 140.7
D 1 52 194977 1320.32 600 584 147.2
D 13 249 36265 242.35 600 584 147.2
D 7 96 27940 185.8 600 584 147.2

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