ASTROSAT CZTI

Data Quality Report

Orbit 44068

Creation date: 2024-06-27T22:58:59.400167
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_9000005940_44068cztM0_level2.fits modeM0/AS1A13_029T01_9000005940_44068cztM0_level2_quad_clean.evt
Size (bytes)473,273,280115,467,840
Size451.3 MB 110.1 MB
Events in quadrant A4,548,913790,876
Events in quadrant B3,141,086838,294
Events in quadrant C3,170,070770,722
Events in quadrant D6,150,795641,051

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0181982
B0135982
C0138892
D0227764

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65421251.910731%
B6542460.703149%
C6542560.856007%
D654179112.092952%

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 7782 6543 27 27 0.35% 0.41%
B 7782 6543 6 6 0.08% 0.09%
C 7782 6543 29 29 0.37% 0.44%
D 7781 6542 614 614 7.89% 9.39%

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 1213123 7599.93 775 761 159.5
A 12 227 171419 1069.8 775 761 159.5
A 7 3 80641 500.74 775 761 159.5
B 4 173 27171 173.48 782 758 152.3
B 12 111 19304 121.81 782 758 152.3
B 14 111 18079 113.76 782 758 152.3
C 1 241 127123 704.77 761 768 179.3
C 14 254 25722 139.19 761 768 179.3
C 14 96 25497 137.93 761 768 179.3
D 13 249 2520914 13876.57 718 697 181.6
D 1 52 275392 1512.5 718 697 181.6
D 5 222 230730 1266.58 718 697 181.6

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