ASTROSAT CZTI

Data Quality Report

Orbit 47403

Creation date: 2024-07-04T04:03:39.521618
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_053T01_9000006326_47403cztM0_level2.fits modeM0/AS1A13_053T01_9000006326_47403cztM0_level2_quad_clean.evt
Size (bytes)471,168,000107,922,240
Size449.3 MB 102.9 MB
Events in quadrant A6,646,962706,482
Events in quadrant B3,233,011749,362
Events in quadrant C3,355,752710,777
Events in quadrant D3,710,960656,807

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0236952
B0139562
C0144592
D0154912

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0210
C0210
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63684006.281407%
B63681392.182789%
C63681512.371231%
D63681452.277010%

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 7558 6368 143 143 1.89% 2.25%
B 7558 6368 33 33 0.44% 0.52%
C 7558 6368 118 118 1.56% 1.85%
D 7558 6368 102 102 1.35% 1.60%

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 3616153 24454.17 718 703 147.8
A 9 191 208495 1405.46 718 703 147.8
A 15 235 16229 105.01 718 703 147.8
B 5 32 180360 1285.18 724 705 139.8
B 5 255 77834 551.75 724 705 139.8
B 0 190 34456 241.44 724 705 139.8
C 12 2 560913 3401.13 710 714 164.7
C 3 233 18377 107.24 710 714 164.7
C 0 207 6634 35.94 710 714 164.7
D 2 165 392682 2233.92 707 685 175.5
D 2 249 301364 1713.52 707 685 175.5
D 7 38 84149 475.65 707 685 175.5

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