ASTROSAT CZTI

Data Quality Report

Orbit 15070

Creation date: 2024-06-27T17:03:19.872063
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/AS1T02_060T01_9000002216_15070cztM0_level2.evt modeM0/AS1T02_060T01_9000002216_15070cztM0_level2_quad_clean.evt
Size (bytes)632,957,76071,458,560
Size603.6 MB 68.1 MB
Events in quadrant A3,199,030435,511
Events in quadrant B3,347,287443,821
Events in quadrant C6,772,012412,935
Events in quadrant D5,402,913409,559

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136673
B0138452
C0249742
D0205112

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6624831.253019%
B66241101.660628%
C66243515.298913%
D6624101615.338164%

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 7495 6625 0 0 0.00% 0.00%
B 7495 6625 0 0 0.00% 0.00%
C 7495 6625 112 112 1.49% 1.69%
D 7495 6626 877 877 11.70% 13.24%

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 12 189 9886 53.98 827 810 168.1
A 4 2 8430 45.32 827 810 168.1
A 0 226 7208 38.06 827 810 168.1
B 3 64 104064 644.21 827 807 160.3
B 12 111 19571 117.07 827 807 160.3
B 11 111 17357 103.25 827 807 160.3
C 3 233 3676956 19987.1 788 793 183.9
C 3 232 11196 56.56 788 793 183.9
C 3 234 10434 52.42 788 793 183.9
D 2 14 2503566 13661.23 743 719 183.2
D 13 249 48532 260.97 743 719 183.2
D 13 104 34522 184.5 743 719 183.2

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