ASTROSAT CZTI

Data Quality Report

Orbit 45298

Creation date: 2024-06-27T23:12:06.211207
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/AS1A13_073T04_9000006066_45298cztM0_level2.fits modeM0/AS1A13_073T04_9000006066_45298cztM0_level2_quad_clean.evt
Size (bytes)473,158,080110,695,680
Size451.2 MB 105.6 MB
Events in quadrant A5,687,609722,462
Events in quadrant B3,256,988775,256
Events in quadrant C3,582,449733,396
Events in quadrant D4,481,101665,727

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220254
B0140162
C0151852
D0179852

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65262624.014710%
B6526510.781489%
C65261652.528348%
D65262654.060680%

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 7691 6526 142 142 1.85% 2.18%
B 7691 6527 15 15 0.20% 0.23%
C 7691 6526 158 158 2.05% 2.42%
D 7691 6526 227 227 2.95% 3.48%

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 2487042 16552.87 732 718 150.2
A 10 248 349111 2319.45 732 718 150.2
A 0 243 13955 88.13 732 718 150.2
B 3 112 104039 716.3 745 725 144.2
B 5 172 63168 432.93 745 725 144.2
B 0 183 38588 262.51 745 725 144.2
C 14 254 657877 3816.17 735 740 172.2
C 11 16 17143 95.26 735 740 172.2
C 12 249 13028 71.36 735 740 172.2
D 2 249 1192088 6608.45 727 706 180.3
D 13 171 155424 858.2 727 706 180.3
D 1 52 140959 777.97 727 706 180.3

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