ASTROSAT CZTI

Data Quality Report

Orbit 47998

Creation date: 2024-08-13T07:05:51.086895
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_062T02_9000006384_47998cztM0_level2.fits modeM0/AS1A13_062T02_9000006384_47998cztM0_level2_quad_clean.evt
Size (bytes)463,947,840108,699,840
Size442.5 MB 103.7 MB
Events in quadrant A6,837,970703,059
Events in quadrant B3,105,293762,171
Events in quadrant C3,455,431719,010
Events in quadrant D3,270,354653,271

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0245362
B0137273
C0147972
D0144522

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65023986.121193%
B6501891.369020%
C65011612.476542%
D65011191.830488%

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 7642 6504 87 87 1.14% 1.34%
B 7641 6503 10 10 0.13% 0.15%
C 7641 6503 97 97 1.27% 1.49%
D 7641 6503 72 72 0.94% 1.11%

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 3964998 25967.8 732 716 152.7
A 0 31 27576 175.94 732 716 152.7
A 13 254 9116 55.02 732 716 152.7
B 5 32 37361 249.33 748 725 146.9
B 0 198 32055 213.22 748 725 146.9
B 4 21 26686 176.68 748 725 146.9
C 14 254 449233 2579.86 736 740 173.8
C 12 2 103993 593.94 736 740 173.8
C 14 67 12955 70.26 736 740 173.8
D 2 249 155536 852.5 731 710 181.6
D 2 165 104323 570.51 731 710 181.6
D 11 224 98013 535.77 731 710 181.6

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