ASTROSAT CZTI

Data Quality Report

Orbit 03038

Creation date: 2024-06-27T14:23:48.190249
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/AS1G05_237T02_9000000422_03038cztM0_level2.evt modeM0/AS1G05_237T02_9000000422_03038cztM0_level2_quad_clean.evt
Size (bytes)417,732,48082,990,080
Size398.4 MB 79.1 MB
Events in quadrant A2,270,673545,713
Events in quadrant B2,812,016551,275
Events in quadrant C4,283,320527,964
Events in quadrant D2,941,625533,890

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0310

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0102193
B0115332
C0161652
D0122262

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5059110.217434%
B5059140.276735%
C50592995.910259%
D5059320.632536%

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 7215 5060 3 3 0.04% 0.06%
B 7215 5060 6 6 0.08% 0.12%
C 7215 5060 292 292 4.05% 5.77%
D 7215 5060 25 25 0.35% 0.49%

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 0 50 21987 185.89 571 560 115.3
A 13 251 19007 160.04 571 560 115.3
A 14 249 13724 114.2 571 560 115.3
B 15 204 360388 3317.32 573 562 108.5
B 2 249 72260 661.0 573 562 108.5
B 0 230 71967 658.3 573 562 108.5
C 1 192 1997165 16251.87 535 536 122.9
C 12 206 68178 550.58 535 536 122.9
C 6 80 60074 484.62 535 536 122.9
D 13 114 371389 2844.93 548 534 130.4
D 2 152 146023 1116.09 548 534 130.4
D 7 80 134007 1023.91 548 534 130.4

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