ASTROSAT CZTI

Data Quality Report

Orbit 45730

Creation date: 2024-06-27T23:15:30.423539
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/AS1T05_183T01_9000006124_45730cztM0_level2.fits modeM0/AS1T05_183T01_9000006124_45730cztM0_level2_quad_clean.evt
Size (bytes)498,579,840103,492,800
Size475.5 MB 98.7 MB
Events in quadrant A5,639,673686,665
Events in quadrant B3,879,750702,172
Events in quadrant C3,100,287693,186
Events in quadrant D5,329,989596,034

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0209112
B0157151
C0137911
D0202761

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65261301.992032%
B65262033.110634%
C6527721.103110%
D65274597.032327%

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 7361 6527 7 7 0.10% 0.11%
B 7361 6527 86 86 1.17% 1.32%
C 7362 6528 22 22 0.30% 0.34%
D 7362 6528 398 398 5.41% 6.10%

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 2707422 17608.84 734 719 153.7
A 13 248 72972 470.05 734 719 153.7
A 13 254 10553 63.98 734 719 153.7
B 3 112 389159 2650.19 735 712 146.6
B 5 172 329157 2240.83 735 712 146.6
B 0 189 146414 994.06 735 712 146.6
C 14 254 161131 927.52 731 735 172.9
C 3 233 48065 273.7 731 735 172.9
C 0 207 14956 82.24 731 735 172.9
D 1 52 1628432 9077.49 705 685 179.3
D 13 138 375504 2090.26 705 685 179.3
D 13 249 319449 1777.66 705 685 179.3

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