ASTROSAT CZTI

Data Quality Report

Orbit 11016

Creation date: 2024-06-27T16:07:05.703966
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/AS1G08_046T09_9000001600_11016cztM0_level2.evt modeM0/AS1G08_046T09_9000001600_11016cztM0_level2_quad_clean.evt
Size (bytes)605,819,52094,184,640
Size577.8 MB 89.8 MB
Events in quadrant A6,506,744560,700
Events in quadrant B4,256,481633,785
Events in quadrant C2,941,332641,310
Events in quadrant D4,227,543587,706

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0251171685
B0178141161
C013417535
D0176861128

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01304
B01300
C01304
D01306

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6054111018.334985%
B61343786.162374%
C6183250.404334%
D61112544.156439%

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 7613 6267 843 843 11.07% 13.45%
B 7614 6323 229 229 3.01% 3.62%
C 7614 6365 3 3 0.04% 0.05%
D 7615 6326 179 179 2.35% 2.83%

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 14 238 3016956 21959.93 686 672 137.4
A 8 5 809210 5886.53 686 672 137.4
A 15 174 15497 107.93 686 672 137.4
B 4 239 1281126 9111.82 743 726 140.5
B 4 81 28207 195.57 743 726 140.5
B 0 187 26714 184.94 743 726 140.5
C 9 54 58314 339.42 734 736 169.6
C 14 234 18916 107.17 734 736 169.6
C 13 61 5324 27.04 734 736 169.6
D 10 253 433610 2506.69 718 696 172.7
D 11 129 420382 2430.1 718 696 172.7
D 1 52 261231 1508.57 718 696 172.7

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