ASTROSAT CZTI

Data Quality Report

Orbit 47561

Creation date: 2024-07-14T19:26:26.411893
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/AS1C09_002T01_9000006334_47561cztM0_level2.fits modeM0/AS1C09_002T01_9000006334_47561cztM0_level2_quad_clean.evt
Size (bytes)458,452,800106,868,160
Size437.2 MB 101.9 MB
Events in quadrant A6,767,400710,402
Events in quadrant B3,124,051735,333
Events in quadrant C2,725,645711,352
Events in quadrant D3,880,228653,224

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0244491
B0133461
C0124801
D0157091

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60983095.067235%
B60991031.688801%
C6099701.147729%
D60991442.361043%

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 7268 6098 56 56 0.77% 0.92%
B 7269 6099 6 6 0.08% 0.10%
C 7269 6099 0 0 0.00% 0.00%
D 7269 6099 64 64 0.88% 1.05%

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 3551666 24573.37 705 692 144.5
A 9 191 299737 2069.44 705 692 144.5
A 7 3 172032 1185.7 705 692 144.5
B 0 190 101448 747.95 705 686 134.7
B 0 200 91981 677.68 705 686 134.7
B 5 255 37101 270.31 705 686 134.7
C 1 3 10400 60.1 694 696 161.5
C 3 233 6750 37.49 694 696 161.5
C 13 61 4820 25.54 694 696 161.5
D 2 165 807957 4639.68 698 676 174.0
D 12 233 102424 584.78 698 676 174.0
D 2 249 95080 542.57 698 676 174.0

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