ASTROSAT CZTI

Data Quality Report

Orbit 44609

Creation date: 2024-06-27T23:04:30.131036
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_009T03_9000006006_44609cztM0_level2.fits modeM0/AS1A13_009T03_9000006006_44609cztM0_level2_quad_clean.evt
Size (bytes)547,223,040129,104,640
Size521.9 MB 123.1 MB
Events in quadrant A6,532,504857,282
Events in quadrant B3,884,259885,306
Events in quadrant C4,007,924845,423
Events in quadrant D5,214,401767,686

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0252951
B0170901
C0174971
D0209301

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A79591632.047996%
B79591141.432341%
C7960620.778894%
D79592543.191356%

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 7958 7958 26 26 0.33% 0.33%
B 7959 7959 36 36 0.45% 0.45%
C 7959 7959 36 36 0.45% 0.45%
D 7959 7959 259 259 3.25% 3.25%

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 1934140 10138.78 913 893 190.7
A 15 223 959098 5025.24 913 893 190.7
A 13 248 52294 269.57 913 893 190.7
B 5 172 187239 1017.95 911 881 183.1
B 0 189 40178 214.65 911 881 183.1
B 12 111 23817 125.28 911 881 183.1
C 3 233 185603 875.92 893 899 210.9
C 12 2 166334 784.54 893 899 210.9
C 14 254 63650 297.58 893 899 210.9
D 13 249 1173839 5214.93 889 860 224.9
D 1 52 351429 1558.59 889 860 224.9
D 2 249 112388 495.84 889 860 224.9

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