ASTROSAT CZTI

Data Quality Report

Orbit 20230115_C06_010T05_9000005484_level2

Creation date: 2023-01-16T11:49:15.892501
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/AS1C06_010T05_9000005484cztM0_level2.fits modeM0/AS1C06_010T05_9000005484cztM0_level2_quad_clean.evt
Size (bytes)124,384,320177,937,920
Size118.6 MB 169.7 MB
Events in quadrant A754,4741,175,893
Events in quadrant B742,3621,221,144
Events in quadrant C715,0001,103,537
Events in quadrant D605,346939,432

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0325840
B0284900
C0393470
D0447700

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02820
B02820
C02820
D02820

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0630
B0630
C0630
D0630

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A137391290.938933%
B13739490.356649%
C137399436.863673%
D13739171212.460878%

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 19839 13739 0 0 0.00% 0.00%
B 19839 13739 0 0 0.00% 0.00%
C 19839 13724 0 0 0.00% 0.00%
D 19839 13717 0 0 0.00% 0.00%

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 7 110 656 9.28 197 186 50.7
A 9 19 637 8.9 197 186 50.7
A 0 29 618 8.53 197 186 50.7
B 2 9 624 11.15 196 189 39.0
B 3 80 598 10.48 196 189 39.0
B 5 128 527 8.66 196 189 39.0
C 1 81 600 8.37 189 179 50.3
C 1 80 533 7.03 189 179 50.3
C 3 187 520 6.78 189 179 50.3
D 7 3 452 6.21 173 158 47.4
D 6 38 445 6.06 173 158 47.4
D 6 231 444 6.04 173 158 47.4

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