ASTROSAT CZTI

Data Quality Report

Orbit 28593

Creation date: 2024-06-27T19:53:47.057246
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_102T03_9000004106_28593cztM0_level2.evt modeM0/AS1A10_102T03_9000004106_28593cztM0_level2_quad_clean.evt
Size (bytes)222,672,96031,769,280
Size212.4 MB 30.3 MB
Events in quadrant A1,438,325195,398
Events in quadrant B1,506,254195,546
Events in quadrant C1,438,710188,779
Events in quadrant D2,173,053186,518

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060001
B061591
C059471
D083971

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0580
B0580
C0580
D0580

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2723562.056555%
B27231144.186559%
C27231144.186559%
D272328310.392949%

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 3028 2724 7 7 0.23% 0.26%
B 3028 2724 23 23 0.76% 0.84%
C 3028 2725 2 2 0.07% 0.07%
D 3028 2724 118 118 3.90% 4.33%

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 15 174 40165 532.74 359 351 74.7
A 8 192 7451 95.0 359 351 74.7
A 13 254 5064 63.06 359 351 74.7
B 10 245 83947 1163.55 358 348 71.8
B 12 111 8740 116.8 358 348 71.8
B 11 111 7749 103.01 358 348 71.8
C 14 238 56004 669.57 344 345 83.1
C 7 247 20152 238.27 344 345 83.1
C 15 208 8607 99.39 344 345 83.1
D 1 52 509297 6092.76 338 328 83.5
D 8 195 235678 2817.32 338 328 83.5
D 2 250 86567 1032.35 338 328 83.5

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