ASTROSAT CZTI

Data Quality Report

Orbit 22990

Creation date: 2024-06-27T18:48:45.404929
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/AS1C05_013T01_9000003398_22990cztM0_level2.evt modeM0/AS1C05_013T01_9000003398_22990cztM0_level2_quad_clean.evt
Size (bytes)285,782,40079,816,320
Size272.5 MB 76.1 MB
Events in quadrant A1,881,491541,063
Events in quadrant B2,011,539546,775
Events in quadrant C1,901,409521,372
Events in quadrant D2,565,408503,701

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A086650
B088530
C086660
D0107270

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0860
B0860
C0860
D0860

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A432420.046253%
B432440.092507%
C432480.185014%
D43241022.358927%

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 4324 4324 0 0 0.00% 0.00%
B 4324 4324 3 3 0.07% 0.07%
C 4324 4324 0 0 0.00% 0.00%
D 4324 4324 83 83 1.92% 1.92%

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 6979 65.72 486 477 98.9
A 0 226 4279 38.43 486 477 98.9
A 3 137 4044 36.05 486 477 98.9
B 0 190 48225 521.3 484 474 91.6
B 0 189 46806 505.81 484 474 91.6
B 5 172 13113 137.98 484 474 91.6
C 14 238 75295 688.25 466 469 108.7
C 7 247 3639 29.16 466 469 108.7
C 13 61 3260 25.67 466 469 108.7
D 1 52 337710 2963.94 469 455 113.8
D 13 249 114200 999.64 469 455 113.8
D 13 153 105857 926.32 469 455 113.8

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