ASTROSAT CZTI

Data Quality Report

Orbit 47229

Creation date: 2024-06-27T23:33:09.001362
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/AS1C09_005T01_9000006304_47229cztM0_level2.fits modeM0/AS1C09_005T01_9000006304_47229cztM0_level2_quad_clean.evt
Size (bytes)483,341,760112,893,120
Size461.0 MB 107.7 MB
Events in quadrant A7,866,775719,239
Events in quadrant B3,600,556785,134
Events in quadrant C2,976,091764,483
Events in quadrant D2,946,070698,088

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280352
B0150042
C0133222
D0134392

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64735518.512282%
B64731322.039240%
C6473340.525259%
D6473300.463464%

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 7708 6474 363 363 4.71% 5.61%
B 7707 6472 40 40 0.52% 0.62%
C 7708 6473 8 8 0.10% 0.12%
D 7707 6472 12 12 0.16% 0.19%

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 3543506 23874.29 725 709 148.4
A 9 191 1511753 10182.66 725 709 148.4
A 13 254 10521 66.12 725 709 148.4
B 5 32 192917 1337.17 743 720 143.7
B 0 190 166654 1154.45 743 720 143.7
B 15 201 139086 962.65 743 720 143.7
C 14 254 46082 259.62 748 751 174.6
C 14 67 6090 30.58 748 751 174.6
C 13 61 4962 24.12 748 751 174.6
D 1 47 29092 156.55 741 719 181.2
D 2 234 27429 147.38 741 719 181.2
D 12 238 25847 138.65 741 719 181.2

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