ASTROSAT CZTI

Data Quality Report

Orbit 43167

Creation date: 2024-06-27T22:48:47.606437
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/AS1C07_001T10_9000005856_43167cztM0_level2.fits modeM0/AS1C07_001T10_9000005856_43167cztM0_level2_quad_clean.evt
Size (bytes)369,763,20082,831,680
Size352.6 MB 79.0 MB
Events in quadrant A3,237,765562,386
Events in quadrant B2,356,086584,397
Events in quadrant C2,421,272547,636
Events in quadrant D5,264,787447,222

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129691
B0109491
C0107541
D0192861

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A52311112.121965%
B5232330.630734%
C5232260.496942%
D523281815.634557%

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 7024 5232 73 73 1.04% 1.40%
B 7025 5233 20 20 0.28% 0.38%
C 7025 5233 16 16 0.23% 0.31%
D 7025 5233 743 743 10.58% 14.20%

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 502598 4419.61 551 539 113.6
A 15 237 281787 2475.82 551 539 113.6
A 15 222 218082 1915.02 551 539 113.6
B 0 229 149134 1393.36 551 536 106.6
B 5 255 35929 331.87 551 536 106.6
B 12 111 13689 123.33 551 536 106.6
C 15 214 216685 1737.52 534 535 124.4
C 7 220 98758 789.56 534 535 124.4
C 14 254 12808 98.66 534 535 124.4
D 1 52 1896963 15104.76 510 494 125.6
D 12 16 916000 7291.71 510 494 125.6
D 13 249 230996 1835.87 510 494 125.6

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