ASTROSAT CZTI

Data Quality Report

Orbit 05046

Creation date: 2024-06-27T14:50:37.231553
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/AS1G05_250T02_9000000638_05046cztM0_level2.evt modeM0/AS1G05_250T02_9000000638_05046cztM0_level2_quad_clean.evt
Size (bytes)487,739,52087,825,600
Size465.1 MB 83.8 MB
Events in quadrant A3,225,039543,511
Events in quadrant B3,404,833541,809
Events in quadrant C3,162,671549,953
Events in quadrant D4,485,033518,526

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149743
B0153022
C0147842
D0186092

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7261200.275444%
B7261470.647294%
C7261230.316761%
D72613134.310701%

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 8946 7263 0 0 0.00% 0.00%
B 8946 7263 0 0 0.00% 0.00%
C 8946 7263 0 0 0.00% 0.00%
D 8946 7263 208 208 2.33% 2.86%

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 13 251 19710 110.74 826 806 170.7
A 15 174 14122 78.0 826 806 170.7
A 0 50 12325 67.48 826 806 170.7
B 15 204 111247 690.03 835 815 160.0
B 0 219 24650 148.93 835 815 160.0
B 5 70 14782 87.27 835 815 160.0
C 14 67 7821 37.42 806 809 187.4
C 13 61 6638 31.1 806 809 187.4
C 9 54 5625 25.7 806 809 187.4
D 13 235 631178 3284.28 785 763 191.9
D 2 33 284532 1478.35 785 763 191.9
D 1 7 268449 1394.57 785 763 191.9

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