ASTROSAT CZTI

Data Quality Report

Orbit 46607

Creation date: 2024-06-27T23:25:23.156205
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_092T09_9000006238_46607cztM0_level2.fits modeM0/AS1A13_092T09_9000006238_46607cztM0_level2_quad_clean.evt
Size (bytes)481,648,320104,768,640
Size459.3 MB 99.9 MB
Events in quadrant A6,301,909664,903
Events in quadrant B3,801,817706,392
Events in quadrant C3,225,373707,275
Events in quadrant D3,997,989642,671

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0231071
B0158171
C0145221
D0165141

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64653204.949729%
B64653074.748647%
C64662133.294154%
D64662233.448809%

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 7280 6466 96 96 1.32% 1.48%
B 7280 6466 79 79 1.09% 1.22%
C 7281 6467 68 68 0.93% 1.05%
D 7281 6467 118 118 1.62% 1.82%

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 3248639 20335.04 760 746 159.7
A 9 191 31794 194.39 760 746 159.7
A 15 235 29802 181.92 760 746 159.7
B 15 201 460470 3086.72 748 726 148.9
B 0 189 186675 1248.46 748 726 148.9
B 0 198 61403 407.39 748 726 148.9
C 1 3 162271 916.02 739 743 176.3
C 14 254 143949 812.12 739 743 176.3
C 3 233 12375 65.96 739 743 176.3
D 12 128 314732 1596.16 758 735 196.7
D 1 52 273396 1386.03 758 735 196.7
D 4 223 92045 464.16 758 735 196.7

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