ASTROSAT CZTI

Data Quality Report

Orbit 43009

Creation date: 2024-06-27T22:46:51.329565
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/AS1T05_148T01_9000005838_43009cztM0_level2.fits modeM0/AS1T05_148T01_9000005838_43009cztM0_level2_quad_clean.evt
Size (bytes)392,466,240117,048,960
Size374.3 MB 111.6 MB
Events in quadrant A3,324,464839,611
Events in quadrant B4,018,110836,880
Events in quadrant C2,776,849804,392
Events in quadrant D4,012,351706,574

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0230
C0230
D0230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132082
B0153562
C0113692
D0153433

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5102571.117209%
B5102831.626813%
C510250.098001%
D51012324.548128%

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 7075 5103 25 25 0.35% 0.49%
B 7075 5103 53 53 0.75% 1.04%
C 7075 5103 2 2 0.03% 0.04%
D 7074 5102 237 237 3.35% 4.65%

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 579580 3833.36 681 670 151.0
A 15 237 104214 685.64 681 670 151.0
A 13 254 8268 50.31 681 670 151.0
B 0 186 770490 5480.79 666 655 140.5
B 4 171 478611 3402.77 666 655 140.5
B 4 81 68443 482.61 666 655 140.5
C 15 214 210752 1269.16 651 658 165.5
C 0 239 13022 74.69 651 658 165.5
C 12 249 8957 50.13 651 658 165.5
D 1 52 1059654 6169.89 647 627 171.6
D 1 47 142170 824.63 647 627 171.6
D 13 249 125664 728.46 647 627 171.6

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