ASTROSAT CZTI

Data Quality Report

Orbit 47483

Creation date: 2024-07-09T14:38:36.536372
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_089T01_9000006330_47483cztM0_level2.fits modeM0/AS1A13_089T01_9000006330_47483cztM0_level2_quad_clean.evt
Size (bytes)694,431,360137,393,280
Size662.3 MB 131.0 MB
Events in quadrant A9,136,575894,707
Events in quadrant B6,364,151887,576
Events in quadrant C4,703,367917,436
Events in quadrant D4,802,574834,051

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01820
B01820
C01820
D01820

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0336482
B0250452
C0202862
D0207582

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A90206146.807095%
B9020100511.141907%
C90202692.982262%
D90213043.369915%

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 9320 9022 9 9 0.10% 0.10%
B 9320 9022 306 306 3.28% 3.39%
C 9320 9022 60 60 0.64% 0.67%
D 9321 9023 81 81 0.87% 0.90%

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 4584156 20794.84 1040 1015 220.4
A 9 191 404484 1830.64 1040 1015 220.4
A 15 235 112766 507.04 1040 1015 220.4
B 5 32 1233109 6006.83 1019 984 205.1
B 0 200 850081 4139.5 1019 984 205.1
B 5 172 119370 577.15 1019 984 205.1
C 0 207 529115 2161.12 1034 1039 244.4
C 3 233 96484 390.6 1034 1039 244.4
C 12 250 21257 82.74 1034 1039 244.4
D 2 249 452897 1729.37 1033 998 261.3
D 13 23 116163 440.72 1033 998 261.3
D 2 165 54447 204.54 1033 998 261.3

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