ASTROSAT CZTI

Data Quality Report

Orbit 43002

Creation date: 2024-06-27T22:46:46.911082
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_43002cztM0_level2.fits modeM0/AS1T05_148T01_9000005838_43002cztM0_level2_quad_clean.evt
Size (bytes)362,652,480113,287,680
Size345.9 MB 108.0 MB
Events in quadrant A3,393,220782,552
Events in quadrant B3,359,683784,298
Events in quadrant C2,960,743757,194
Events in quadrant D3,239,356684,128

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0220
C0220
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140202
B0139882
C0123662
D0138562

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6054120.198216%
B60531312.164216%
C605320.033041%
D6053651.073848%

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 7338 6055 6 6 0.08% 0.10%
B 7337 6054 53 53 0.72% 0.88%
C 7337 6054 0 0 0.00% 0.00%
D 7337 6054 71 71 0.97% 1.17%

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 616127 4063.26 708 696 151.5
A 15 237 22419 143.42 708 696 151.5
A 15 222 15710 99.13 708 696 151.5
B 4 171 450782 3150.11 700 683 142.9
B 4 81 56004 387.17 700 683 142.9
B 15 85 51775 357.58 700 683 142.9
C 15 214 248098 1471.95 689 697 168.1
C 15 208 12716 71.51 689 697 168.1
C 7 220 6365 33.72 689 697 168.1
D 1 52 289111 1658.99 682 662 173.9
D 1 47 236943 1358.95 682 662 173.9
D 13 249 31973 180.08 682 662 173.9

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