ASTROSAT CZTI

Data Quality Report

Orbit 38130

Creation date: 2024-06-27T21:48:47.825254
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/AS1C07_001T12_9000005366_38130cztM0_level2.fits modeM0/AS1C07_001T12_9000005366_38130cztM0_level2_quad_clean.evt
Size (bytes)304,727,04091,794,240
Size290.6 MB 87.5 MB
Events in quadrant A2,937,310621,828
Events in quadrant B2,518,464641,253
Events in quadrant C2,530,820611,192
Events in quadrant D2,895,502547,529

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0119103
B0108632
C0105872
D0121992

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0330

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5102150.294002%
B5102360.705606%
C5102140.274402%
D51021322.587221%

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 7225 5103 5 5 0.07% 0.10%
B 7225 5103 19 19 0.26% 0.37%
C 7225 5103 8 8 0.11% 0.16%
D 7225 5103 119 119 1.65% 2.33%

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 359298 3074.74 576 566 116.7
A 12 16 248771 2127.4 576 566 116.7
A 12 194 43188 365.32 576 566 116.7
B 5 172 101528 927.84 575 559 108.8
B 4 171 94869 866.65 575 559 108.8
B 0 221 22376 200.48 575 559 108.8
C 15 214 215058 1655.71 557 562 129.5
C 1 23 63372 484.84 557 562 129.5
C 3 233 36947 280.86 557 562 129.5
D 13 249 404331 2986.74 549 532 135.2
D 4 239 99433 731.53 549 532 135.2
D 12 235 68509 502.8 549 532 135.2

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