ASTROSAT CZTI

Data Quality Report

Orbit 48316

Creation date: 2024-09-06T13:35:18.582248
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_029T01_9000006422_48316cztM0_level2.fits modeM0/AS1A13_029T01_9000006422_48316cztM0_level2_quad_clean.evt
Size (bytes)463,276,800110,779,200
Size441.8 MB 105.6 MB
Events in quadrant A6,971,651737,117
Events in quadrant B3,327,884771,511
Events in quadrant C3,035,247731,893
Events in quadrant D3,316,692666,393

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260004
B0139171
C0133751
D0141361

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64112904.523475%
B64111201.871783%
C6412901.403618%
D64121732.698066%

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 7576 6412 69 69 0.91% 1.08%
B 7576 6412 4 4 0.05% 0.06%
C 7577 6413 27 27 0.36% 0.42%
D 7577 6413 78 78 1.03% 1.22%

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 3805711 23950.69 761 746 158.9
A 13 248 185267 1161.48 761 746 158.9
A 13 254 12409 73.41 761 746 158.9
B 4 21 118715 791.17 762 740 149.1
B 5 255 62500 414.18 762 740 149.1
B 0 200 51452 340.09 762 740 149.1
C 12 2 125281 712.31 745 748 174.8
C 13 61 4971 24.15 745 748 174.8
C 3 233 3121 13.57 745 748 174.8
D 7 96 214399 1131.03 755 733 188.9
D 12 233 78266 410.42 755 733 188.9
D 10 181 42737 222.35 755 733 188.9

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