ASTROSAT CZTI

Data Quality Report

Orbit 07655

Creation date: 2024-06-27T15:22:18.746042
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/AS1G06_124T01_9000001054_07655cztM0_level2.evt modeM0/AS1G06_124T01_9000001054_07655cztM0_level2_quad_clean.evt
Size (bytes)404,951,04074,943,360
Size386.2 MB 71.5 MB
Events in quadrant A2,902,522467,706
Events in quadrant B2,932,229475,390
Events in quadrant C2,901,818471,474
Events in quadrant D3,130,854447,190

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121312
B0121901
C0121671
D0130131

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5824751.287775%
B5824711.219093%
C5824601.030220%
D5824881.510989%

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 7054 5825 0 0 0.00% 0.00%
B 7054 5825 2 2 0.03% 0.03%
C 7054 5825 0 0 0.00% 0.00%
D 7054 5824 27 27 0.38% 0.46%

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 2 79 7585 44.95 751 736 152.4
A 0 226 7085 41.67 751 736 152.4
A 12 194 6934 40.68 751 736 152.4
B 4 81 16286 110.45 747 731 140.8
B 12 111 14821 100.05 747 731 140.8
B 11 111 11843 78.9 747 731 140.8
C 8 208 24228 138.05 734 738 170.2
C 9 68 11592 63.79 734 738 170.2
C 13 61 5581 28.46 734 738 170.2
D 5 239 90731 501.15 735 713 179.6
D 14 34 66499 366.24 735 713 179.6
D 2 152 65853 362.65 735 713 179.6

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