ASTROSAT CZTI

Data Quality Report

Orbit 43633

Creation date: 2024-06-27T22:53:53.428254
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/AS1A12_095T02_9000005892_43633cztM0_level2.fits modeM0/AS1A12_095T02_9000005892_43633cztM0_level2_quad_clean.evt
Size (bytes)516,902,40046,586,880
Size493.0 MB 44.4 MB
Events in quadrant A2,232,789424,718
Events in quadrant B2,722,264427,251
Events in quadrant C8,674,42331,037
Events in quadrant D5,238,217284,979

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A092440
B0104720
C0281670
D0179560

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0680
B0680
C0680
D0680

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3424200.584112%
B3424952.774533%
C3424323894.567757%
D3424105330.753505%

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 3424 3424 18 18 0.53% 0.53%
B 3424 3424 71 71 2.07% 2.07%
C 3423 3423 3199 3199 93.46% 93.46%
D 3424 3424 1013 1013 29.59% 29.59%

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 10 83 397046 4584.86 413 405 86.5
A 15 223 110701 1274.93 413 405 86.5
A 9 240 52703 604.52 413 405 86.5
B 5 235 404218 5203.3 403 393 77.6
B 4 206 342175 4403.87 403 393 77.6
B 12 32 158398 2035.9 403 393 77.6
C 15 142 6183381 134947.77 190 192 45.8
C 15 174 892441 19473.29 190 192 45.8
C 3 233 534414 11659.37 190 192 45.8
D 7 80 1434199 14992.73 362 350 95.6
D 12 233 331198 3459.44 362 350 95.6
D 12 6 237003 2474.51 362 350 95.6

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