ASTROSAT CZTI

Data Quality Report

Orbit 03798

Creation date: 2024-06-27T14:33:48.757194
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/AS1G05_152T03_9000000488_03798cztM0_level2.evt modeM0/AS1G05_152T03_9000000488_03798cztM0_level2_quad_clean.evt
Size (bytes)170,683,20030,015,360
Size162.8 MB 28.6 MB
Events in quadrant A1,505,354191,764
Events in quadrant B1,259,675193,999
Events in quadrant C883,108193,558
Events in quadrant D1,384,649185,433

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0400
B0400
C0400
D0400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A058675
B051344
C041132
D055214

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1974713.596758%
B197420.101317%
C1975160.810127%
D1974974.913880%

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 1976 1976 40 40 2.02% 2.02%
B 1976 1976 0 0 0.00% 0.00%
C 1976 1976 14 14 0.71% 0.71%
D 1976 1976 94 94 4.76% 4.76%

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 13 251 467974 10402.05 208 204 45.0
A 0 118 184377 4095.55 208 204 45.0
A 0 226 19395 426.76 208 204 45.0
B 15 204 238824 5615.3 212 207 42.5
B 0 173 114054 2679.13 212 207 42.5
B 14 167 42675 999.39 212 207 42.5
C 14 234 62853 1255.04 208 208 49.9
C 10 65 3375 63.44 208 208 49.9
C 13 61 1880 33.49 208 208 49.9
D 2 63 531790 10188.4 208 201 52.2
D 8 112 33217 632.78 208 201 52.2
D 1 84 14823 280.24 208 201 52.2

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
Veto Counter