ASTROSAT CZTI

Data Quality Report

Orbit 44390

Creation date: 2024-06-27T23:02:59.696829
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/AS1A13_008T05_9000005996_44390cztM0_level2.fits modeM0/AS1A13_008T05_9000005996_44390cztM0_level2_quad_clean.evt
Size (bytes)515,908,800106,678,080
Size492.0 MB 101.7 MB
Events in quadrant A4,918,534729,135
Events in quadrant B4,185,423728,545
Events in quadrant C3,186,332716,611
Events in quadrant D6,284,473586,179

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0201761
B0171441
C0143311
D0232131

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67301412.095097%
B67303104.606241%
C6730440.653789%
D673089113.239227%

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 7345 6731 18 18 0.25% 0.27%
B 7345 6730 110 110 1.50% 1.63%
C 7345 6731 28 28 0.38% 0.42%
D 7345 6730 902 902 12.28% 13.40%

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 1835626 11406.25 766 752 160.9
A 13 248 79303 488.3 766 752 160.9
A 0 243 15926 94.33 766 752 160.9
B 5 235 440492 2952.21 756 734 149.0
B 5 255 436217 2923.52 756 734 149.0
B 7 221 78848 524.4 756 734 149.0
C 12 250 125895 712.73 743 748 175.6
C 14 254 87685 495.11 743 748 175.6
C 3 233 22139 121.82 743 748 175.6
D 4 221 1035219 5760.65 708 685 179.6
D 12 233 683749 3803.54 708 685 179.6
D 1 52 493215 2742.58 708 685 179.6

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