ASTROSAT CZTI

Data Quality Report

Orbit 48290

Creation date: 2024-09-06T10:52:55.521333
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_48290cztM0_level2.fits modeM0/AS1A13_029T01_9000006422_48290cztM0_level2_quad_clean.evt
Size (bytes)518,391,360113,328,000
Size494.4 MB 108.1 MB
Events in quadrant A7,566,278737,847
Events in quadrant B3,670,950777,047
Events in quadrant C3,424,137745,297
Events in quadrant D3,978,883678,781

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0273321
B0156241
C0152361
D0168435

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70764266.020350%
B70761912.699265%
C70761211.710006%
D70762383.363482%

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 7666 7077 5 5 0.07% 0.07%
B 7666 7077 11 11 0.14% 0.16%
C 7666 7077 27 27 0.35% 0.38%
D 7666 7077 100 100 1.30% 1.41%

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 4354570 25584.85 818 800 170.2
A 13 248 27192 155.09 818 800 170.2
A 13 254 14850 82.56 818 800 170.2
B 4 21 181329 1089.59 823 797 165.7
B 0 200 153802 923.45 823 797 165.7
B 0 183 26995 158.12 823 797 165.7
C 14 254 153214 789.9 811 813 192.9
C 1 3 39250 199.22 811 813 192.9
C 2 207 35188 178.17 811 813 192.9
D 2 165 322254 1589.4 808 783 202.3
D 2 249 182869 900.26 808 783 202.3
D 7 67 105381 517.15 808 783 202.3

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