ASTROSAT CZTI

Data Quality Report

Orbit 48069

Creation date: 2024-08-19T10:04:13.147653
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_024T01_9000006394_48069cztM0_level2.fits modeM0/AS1A13_024T01_9000006394_48069cztM0_level2_quad_clean.evt
Size (bytes)440,902,08094,913,280
Size420.5 MB 90.5 MB
Events in quadrant A6,294,209659,686
Events in quadrant B2,475,938549,306
Events in quadrant C2,711,540671,410
Events in quadrant D4,376,805578,654

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0225351
B0113271
C0122061
D0170091

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59343185.358948%
B5934127921.553758%
C5935330.556024%
D59354597.733783%

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 7124 5934 89 89 1.25% 1.50%
B 7123 5934 7 7 0.10% 0.12%
C 7125 5936 0 0 0.00% 0.00%
D 7125 5936 408 408 5.73% 6.87%

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 3528294 24937.28 680 666 141.5
A 13 248 75524 529.18 680 666 141.5
A 0 31 33863 234.67 680 666 141.5
B 2 177 168063 1548.44 546 531 108.2
B 7 221 59049 540.86 546 531 108.2
B 0 200 38405 350.06 546 531 108.2
C 12 2 11314 65.7 687 691 161.7
C 1 3 7112 39.71 687 691 161.7
C 14 254 6640 36.79 687 691 161.7
D 2 249 1494403 8859.65 665 643 168.6
D 13 29 103474 609.9 665 643 168.6
D 11 224 52351 306.69 665 643 168.6

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