ASTROSAT CZTI

Data Quality Report

Orbit 29501

Creation date: 2024-06-27T20:04:58.844339
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/AS1A10_094T06_9000004248_29501cztM0_level2.evt modeM0/AS1A10_094T06_9000004248_29501cztM0_level2_quad_clean.evt
Size (bytes)658,543,68081,596,160
Size628.0 MB 77.8 MB
Events in quadrant A2,895,248555,199
Events in quadrant B3,285,890566,712
Events in quadrant C3,083,856552,957
Events in quadrant D10,303,781406,653

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0116301
B0129411
C0122971
D0344614

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5555621.116112%
B55551212.178218%
C55561432.573794%
D5555241343.438344%

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 6880 5556 5 5 0.07% 0.09%
B 6880 5556 26 26 0.38% 0.47%
C 6881 5557 0 0 0.00% 0.00%
D 6880 5556 2341 2341 34.03% 42.13%

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 96 24555 162.01 741 728 147.1
A 13 254 10824 68.65 741 728 147.1
A 3 137 6433 38.79 741 728 147.1
B 0 190 152740 1135.35 737 721 133.9
B 5 255 97695 724.25 737 721 133.9
B 15 33 90723 672.18 737 721 133.9
C 14 238 129481 784.88 721 727 164.0
C 3 233 98122 593.71 721 727 164.0
C 7 247 20309 119.37 721 727 164.0
D 8 195 6131522 41486.95 637 620 147.8
D 12 33 1327364 8977.89 637 620 147.8
D 7 238 147448 993.56 637 620 147.8

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