ASTROSAT CZTI

Data Quality Report

Orbit 20230608_A12_035T02_9000005680_level2

Creation date: 2023-06-14T11:51:52.841914
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/AS1A12_035T02_9000005680cztM0_level2.fits modeM0/AS1A12_035T02_9000005680cztM0_level2_quad_clean.evt
Size (bytes)1,303,030,0801,444,305,600
Size1.2 GB 1.3 GB
Events in quadrant A8,159,6949,581,282
Events in quadrant B7,847,7049,612,581
Events in quadrant C7,588,5448,480,395
Events in quadrant D5,744,4965,972,488

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030160
B030160
C030160
D030160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03188430
B03203830
C03744030
D07091420

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05870
B05870
C05880
D05880

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1473444100.278260%
B14734516701.133394%
C14734589906.101327%
D1473464722032.047019%

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 221993 147344 0 0 0.00% 0.00%
B 221993 147345 0 0 0.00% 0.00%
C 221993 146842 0 0 0.00% 0.00%
D 221993 146969 0 0 0.00% 0.00%

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 9 19 6736 9.02 2133 2007 524.4
A 7 110 6695 8.94 2133 2007 524.4
A 0 29 6597 8.75 2133 2007 524.4
B 2 9 6833 12.08 2077 1983 401.5
B 3 17 5550 8.88 2077 1983 401.5
B 3 80 5512 8.79 2077 1983 401.5
C 1 81 6316 8.71 2005 1880 509.2
C 3 203 6005 8.1 2005 1880 509.2
C 1 80 5994 8.08 2005 1880 509.2
D 7 3 4383 6.55 1645 1497 440.4
D 10 189 4288 6.34 1645 1497 440.4
D 3 14 4158 6.04 1645 1497 440.4

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