ASTROSAT CZTI

Data Quality Report

Orbit 12032

Creation date: 2024-06-27T16:21:28.083739
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/AS1A04_044T01_9000001782_12032cztM0_level2.evt modeM0/AS1A04_044T01_9000001782_12032cztM0_level2_quad_clean.evt
Size (bytes)505,088,640105,675,840
Size481.7 MB 100.8 MB
Events in quadrant A3,765,641675,908
Events in quadrant B3,785,204680,895
Events in quadrant C3,528,706662,163
Events in quadrant D3,692,239644,119

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0163503
B0162802
C0159832
D0166452

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7727951.229455%
B77271271.643587%
C7727560.724731%
D7727720.931798%

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 8493 7729 8 8 0.09% 0.10%
B 8493 7729 1 1 0.01% 0.01%
C 8493 7730 1 1 0.01% 0.01%
D 8493 7729 26 26 0.31% 0.34%

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 1 162 66659 348.88 924 903 188.5
A 1 178 30942 159.38 924 903 188.5
A 1 161 27528 141.26 924 903 188.5
B 4 239 75042 413.03 925 900 179.5
B 15 204 72329 397.92 925 900 179.5
B 12 111 22243 118.9 925 900 179.5
C 14 234 20991 95.2 900 904 211.0
C 13 61 6438 26.23 900 904 211.0
C 8 222 2295 6.59 900 904 211.0
D 13 104 142654 663.47 893 867 213.7
D 1 52 116240 539.87 893 867 213.7
D 8 195 39818 182.27 893 867 213.7

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