ASTROSAT CZTI

Data Quality Report

Orbit 47101

Creation date: 2024-06-27T23:31:44.396691
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_003T01_9000006298_47101cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47101cztM0_level2_quad_clean.evt
Size (bytes)1,367,017,920260,052,480
Size1.3 GB 248.0 MB
Events in quadrant A19,034,7361,685,078
Events in quadrant B10,131,8361,772,156
Events in quadrant C7,628,2971,766,806
Events in quadrant D12,487,6401,471,065

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0697263
B0414873
C0355593
D04913810

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03500
B03500
C03500
D03500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1708016599.713115%
B1708110356.059364%
C170813241.896844%
D17080194611.393443%

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 19435 17082 707 707 3.64% 4.14%
B 19436 17084 410 410 2.11% 2.40%
C 19436 17085 17 17 0.09% 0.10%
D 19435 17083 1365 1365 7.02% 7.99%

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 9443709 24595.53 1877 1837 383.9
A 9 191 1963582 5110.23 1877 1837 383.9
A 7 3 195317 504.0 1877 1837 383.9
B 5 32 1485423 4099.35 1880 1819 361.9
B 0 200 505008 1390.36 1880 1819 361.9
B 0 190 176552 482.8 1880 1819 361.9
C 14 254 149175 341.79 1868 1872 431.0
C 15 208 66684 150.38 1868 1872 431.0
C 12 2 35418 77.84 1868 1872 431.0
D 2 249 3900904 8598.28 1801 1738 453.5
D 12 128 380733 835.74 1801 1738 453.5
D 1 47 307824 674.97 1801 1738 453.5

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