ASTROSAT CZTI

Data Quality Report

Orbit 14353

Creation date: 2024-06-27T16:54:05.896544
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/AS1G08_028T01_9000002112_14353cztM0_level2.evt modeM0/AS1G08_028T01_9000002112_14353cztM0_level2_quad_clean.evt
Size (bytes)1,397,214,720234,095,040
Size1.3 GB 223.3 MB
Events in quadrant A8,666,7631,488,887
Events in quadrant B11,447,8381,455,901
Events in quadrant C9,665,6971,459,979
Events in quadrant D11,299,7371,425,031

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0375644
B0459434
C0395414
D0462354

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03720
B03720
C03720
D03720

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A182881270.694444%
B182888944.888451%
C182881430.781934%
D182884542.482502%

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 20224 18291 4 4 0.02% 0.02%
B 20224 18289 519 519 2.57% 2.84%
C 20224 18291 15 15 0.07% 0.08%
D 20224 18290 289 289 1.43% 1.58%

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 12 189 150335 333.26 2194 2144 444.7
A 4 2 32062 67.28 2194 2144 444.7
A 8 15 29276 61.02 2194 2144 444.7
B 10 16 1708918 4132.01 2146 2094 413.1
B 0 229 571971 1379.6 2146 2094 413.1
B 0 85 294528 707.95 2146 2094 413.1
C 3 233 1215747 2474.75 2124 2135 490.4
C 6 96 156009 313.77 2124 2135 490.4
C 13 61 14853 25.93 2124 2135 490.4
D 5 222 1388850 2767.56 2109 2057 501.1
D 2 120 718568 1429.91 2109 2057 501.1
D 10 199 338195 670.82 2109 2057 501.1

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