ASTROSAT CZTI

Data Quality Report

Orbit 58313

Creation date: 2026-07-08T19:14:48.613588
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/AS1A14_044T03_9000006588_58313cztM0_level2.fits modeM0/AS1A14_044T03_9000006588_58313cztM0_level2_quad_clean.evt
Size (bytes)590,765,760109,788,480
Size563.4 MB 104.7 MB
Events in quadrant A4,204,529742,242
Events in quadrant B7,564,708674,770
Events in quadrant C5,261,042688,681
Events in quadrant D4,225,906670,257

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0183081
B0277380
C0213720
D0177480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78831201.522263%
B7883149418.952176%
C78833904.947355%
D7883360.456679%

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 7883 7883 62 62 0.79% 0.79%
B 7883 7883 991 991 12.57% 12.57%
C 7883 7883 306 306 3.88% 3.88%
D 7883 7883 45 45 0.57% 0.57%

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 12 114 514960 2395.44 867 843 214.6
A 13 248 104581 483.35 867 843 214.6
A 10 251 57725 265.03 867 843 214.6
B 4 206 3299138 19676.99 789 762 167.6
B 2 249 431887 2571.95 789 762 167.6
B 4 171 115209 682.75 789 762 167.6
C 15 198 1739113 7600.78 829 820 228.7
C 6 13 54303 233.86 829 820 228.7
C 7 2 42380 181.72 829 820 228.7
D 11 129 375431 1572.62 842 803 238.2
D 12 248 100878 420.1 842 803 238.2
D 2 31 94663 394.01 842 803 238.2

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