ASTROSAT CZTI

Data Quality Report

Orbit 19729

Creation date: 2024-06-27T18:06:06.569662
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/AS1A05_013T01_9000002944_19729cztM0_level2.evt modeM0/AS1A05_013T01_9000002944_19729cztM0_level2_quad_clean.evt
Size (bytes)455,734,08090,227,520
Size434.6 MB 86.0 MB
Events in quadrant A2,998,760567,521
Events in quadrant B3,309,923611,924
Events in quadrant C3,500,247577,097
Events in quadrant D3,577,757548,862

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012832298
B0135112
C0142862
D0145522

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6008190.316245%
B6154671.088723%
C6154681.104972%
D61541021.657459%

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 7549 6012 0 0 0.00% 0.00%
B 7549 6155 8 8 0.11% 0.13%
C 7549 6155 1 1 0.01% 0.02%
D 7549 6155 86 86 1.14% 1.40%

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 0 226 6630 37.61 778 764 156.0
A 3 137 5881 32.81 778 764 156.0
A 12 194 5660 31.39 778 764 156.0
B 7 220 45106 293.52 808 791 151.0
B 4 216 38150 247.45 808 791 151.0
B 4 171 28120 181.02 808 791 151.0
C 3 233 347485 1954.69 774 782 177.4
C 14 238 124077 695.13 774 782 177.4
C 7 247 7889 40.07 774 782 177.4
D 1 52 332792 1784.9 768 748 186.0
D 7 38 106121 566.43 768 748 186.0
D 12 218 77242 411.19 768 748 186.0

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