ASTROSAT CZTI

Data Quality Report

Orbit 04588

Creation date: 2024-06-27T14:44:15.925453
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_191T01_9000000572_04588cztM0_level2.evt modeM0/AS1G05_191T01_9000000572_04588cztM0_level2_quad_clean.evt
Size (bytes)199,866,24046,114,560
Size190.6 MB 44.0 MB
Events in quadrant A1,347,053309,407
Events in quadrant B1,613,761311,958
Events in quadrant C1,364,818302,541
Events in quadrant D1,546,749283,971

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A055672
B063931
C056651
D062581

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0540
B0540
C0540
D0540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2630100.380228%
B2630772.927757%
C263090.342205%
D2630311.178707%

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 4010 2631 0 0 0.00% 0.00%
B 4010 2631 35 35 0.87% 1.33%
C 4010 2631 0 0 0.00% 0.00%
D 4010 2631 22 22 0.55% 0.84%

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 8 15 4547 58.97 348 341 71.3
A 12 194 3604 45.75 348 341 71.3
A 0 226 3467 43.82 348 341 71.3
B 14 167 81622 1189.68 350 345 68.3
B 5 70 63638 926.45 350 345 68.3
B 15 204 49271 716.15 350 345 68.3
C 14 48 39790 489.36 337 340 80.6
C 9 247 5300 61.53 337 340 80.6
C 13 61 2815 30.7 337 340 80.6
D 13 235 144395 1740.21 332 321 82.8
D 12 110 67112 806.74 332 321 82.8
D 2 136 26194 312.51 332 321 82.8

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