ASTROSAT CZTI

Data Quality Report

Orbit 45883

Creation date: 2024-06-27T23:17:17.279827
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_001T01_9000006136_45883cztM0_level2.fits modeM0/AS1C07_001T01_9000006136_45883cztM0_level2_quad_clean.evt
Size (bytes)599,045,76099,017,280
Size571.3 MB 94.4 MB
Events in quadrant A5,471,527676,814
Events in quadrant B9,491,729535,477
Events in quadrant C2,803,378704,054
Events in quadrant D3,900,675625,147

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0203091
B0327981
C0133901
D0161911

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65442603.973105%
B6544215532.930929%
C6544741.130807%
D65452143.269672%

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 7009 6545 6 6 0.09% 0.09%
B 7009 6545 1468 1468 20.94% 22.43%
C 7009 6545 1 1 0.01% 0.02%
D 7010 6546 94 94 1.34% 1.44%

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 2675244 18060.75 712 695 148.1
A 13 248 12653 80.75 712 695 148.1
A 13 254 9854 61.85 712 695 148.1
B 3 112 6782025 54372.5 636 616 124.7
B 5 172 68627 545.3 636 616 124.7
B 4 158 46333 366.55 636 616 124.7
C 12 2 15665 90.68 707 710 164.9
C 2 14 9379 52.56 707 710 164.9
C 3 233 7023 38.28 707 710 164.9
D 13 249 302555 1726.17 699 677 174.9
D 1 52 242844 1384.74 699 677 174.9
D 11 241 182495 1039.66 699 677 174.9

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