ASTROSAT CZTI

Data Quality Report

Orbit 43436

Creation date: 2024-06-27T22:51:58.691033
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/AS1A12_018T01_9000005874_43436cztM0_level2.fits modeM0/AS1A12_018T01_9000005874_43436cztM0_level2_quad_clean.evt
Size (bytes)508,752,00091,056,960
Size485.2 MB 86.8 MB
Events in quadrant A6,667,292570,956
Events in quadrant B2,845,719657,829
Events in quadrant C2,733,649613,847
Events in quadrant D6,127,777501,899

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0239452
B0125152
C0119862
D0224272

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A590181313.777326%
B5901150.254194%
C590150.084731%
D590189115.099136%

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 7184 5902 739 739 10.29% 12.52%
B 7184 5902 7 7 0.10% 0.12%
C 7184 5902 1 1 0.01% 0.02%
D 7184 5902 876 876 12.19% 14.84%

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 15 222 3290878 26608.58 607 595 123.7
A 10 83 603410 4874.98 607 595 123.7
A 15 237 416043 3359.74 607 595 123.7
B 0 189 178880 1474.24 629 611 120.9
B 0 186 70414 577.25 629 611 120.9
B 15 85 33696 273.61 629 611 120.9
C 15 214 246677 1726.45 612 611 142.5
C 3 233 89843 626.07 612 611 142.5
C 14 67 8352 54.31 612 611 142.5
D 1 52 3182199 22487.04 580 562 141.5
D 2 16 280015 1975.11 580 562 141.5
D 2 249 126922 893.08 580 562 141.5

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