ASTROSAT CZTI

Data Quality Report

Orbit 48363

Creation date: 2024-09-07T11:05:56.132426
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_029T01_9000006426_48363cztM0_level2.fits modeM0/AS1A13_029T01_9000006426_48363cztM0_level2_quad_clean.evt
Size (bytes)517,328,640116,732,160
Size493.4 MB 111.3 MB
Events in quadrant A8,034,445742,752
Events in quadrant B3,613,612788,345
Events in quadrant C3,441,481773,682
Events in quadrant D3,482,210711,021

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0291462
B0160542
C0157773
D0159932

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74476028.083792%
B74473024.055324%
C74461542.068225%
D74461562.095085%

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 7787 7447 28 28 0.36% 0.38%
B 7787 7447 12 12 0.15% 0.16%
C 7786 7446 6 6 0.08% 0.08%
D 7786 7447 8 8 0.10% 0.11%

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 4561904 25520.34 851 833 178.7
A 13 248 169900 945.97 851 833 178.7
A 13 254 15066 79.64 851 833 178.7
B 0 198 73932 417.15 863 834 175.2
B 4 21 50535 283.63 863 834 175.2
B 0 186 26709 147.66 863 834 175.2
C 12 2 39495 190.62 854 860 202.7
C 1 16 30390 145.69 854 860 202.7
C 15 208 17092 80.09 854 860 202.7
D 2 249 102215 471.36 860 834 215.1
D 2 234 37638 171.12 860 834 215.1
D 2 233 35024 158.96 860 834 215.1

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