ASTROSAT CZTI

Data Quality Report

Orbit 21610

Creation date: 2024-06-27T18:30:10.876158
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/AS1A05_094T01_9000003204_21610cztM0_level2.evt modeM0/AS1A05_094T01_9000003204_21610cztM0_level2_quad_clean.evt
Size (bytes)761,353,920184,628,160
Size726.1 MB 176.1 MB
Events in quadrant A5,217,4801,221,162
Events in quadrant B5,506,7981,262,013
Events in quadrant C5,293,2801,214,376
Events in quadrant D6,317,3261,155,761

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0221832
B0231432
C0223812
D0260082

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0270

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02180
B02180
C02180
D02180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A10672320.299850%
B10673430.402886%
C10673760.712077%
D106721841.724138%

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 13412 10674 0 0 0.00% 0.00%
B 13413 10675 2 2 0.01% 0.02%
C 13413 10675 0 0 0.00% 0.00%
D 13412 10674 46 46 0.34% 0.43%

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 13 254 15410 52.96 1350 1325 266.0
A 15 174 15042 51.58 1350 1325 266.0
A 0 226 11717 39.07 1350 1325 266.0
B 0 229 60275 238.12 1359 1332 247.5
B 3 64 32370 125.39 1359 1332 247.5
B 0 219 30101 116.22 1359 1332 247.5
C 14 238 210027 696.14 1303 1315 299.8
C 13 61 9379 26.9 1303 1315 299.8
C 0 10 4196 9.61 1303 1315 299.8
D 1 52 874421 2831.61 1292 1259 308.4
D 2 136 229088 738.83 1292 1259 308.4
D 14 35 122973 394.71 1292 1259 308.4

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