ASTROSAT CZTI

Data Quality Report

Orbit 47084

Creation date: 2024-10-15T17:33:53.662557
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/AS1C09_003T01_9000006298_47084cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47084cztM0_level2_quad_clean.evt
Size (bytes)492,526,08095,474,880
Size469.7 MB 91.1 MB
Events in quadrant A5,902,630665,257
Events in quadrant B3,710,415677,495
Events in quadrant C2,587,318637,612
Events in quadrant D5,578,231502,525

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0219457
B01522511
C01197317
D02068514

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A58431642.806777%
B5841991.694915%
C5838140.239808%
D5843102917.610816%

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 7079 5848 25 25 0.35% 0.43%
B 7079 5848 26 26 0.37% 0.44%
C 7080 5848 6 6 0.08% 0.10%
D 7079 5847 784 784 11.08% 13.41%

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 3291308 24012.73 661 648 137.0
A 13 248 17849 125.52 661 648 137.0
A 0 243 12989 90.06 661 648 137.0
B 5 173 561160 4420.31 653 635 126.8
B 5 172 202118 1588.9 653 635 126.8
B 3 112 138870 1090.12 653 635 126.8
C 14 254 46938 310.63 633 635 149.1
C 15 208 32212 211.84 633 635 149.1
C 12 2 26522 173.66 633 635 149.1
D 1 52 2990118 20853.14 573 555 143.4
D 2 120 130102 903.63 573 555 143.4
D 1 47 127600 886.18 573 555 143.4

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