ASTROSAT CZTI

Data Quality Report

Orbit 44697

Creation date: 2024-06-27T23:05:36.799824
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_080T01_9000006012_44697cztM0_level2.fits modeM0/AS1A13_080T01_9000006012_44697cztM0_level2_quad_clean.evt
Size (bytes)375,880,32070,937,280
Size358.5 MB 67.7 MB
Events in quadrant A3,254,267483,483
Events in quadrant B2,274,498494,287
Events in quadrant C1,890,610470,674
Events in quadrant D6,136,840376,100

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0920
B0920
C0920
D0920

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137230
B099140
C092680
D0213650

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A459920.043488%
B4600380.826087%
C460040.086957%
D460081617.739130%

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 4599 4599 1 1 0.02% 0.02%
B 4600 4600 23 23 0.50% 0.50%
C 4600 4600 3 3 0.07% 0.07%
D 4600 4600 913 913 19.85% 19.85%

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 1350889 13318.05 482 472 101.4
A 15 223 18666 179.43 482 472 101.4
A 0 243 10065 94.61 482 472 101.4
B 0 189 70206 731.24 481 468 95.4
B 5 172 69827 727.27 481 468 95.4
B 0 183 51629 536.45 481 468 95.4
C 0 207 15467 134.63 468 470 111.4
C 14 254 14952 130.01 468 470 111.4
C 3 233 12183 105.15 468 470 111.4
D 11 241 2613992 22922.48 443 427 114.0
D 1 52 519836 4555.52 443 427 114.0
D 2 249 366437 3210.12 443 427 114.0

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