ASTROSAT CZTI

Data Quality Report

Orbit 04643

Creation date: 2024-06-27T14:44:59.692046
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_218T03_9000000582_04643cztM0_level2.evt modeM0/AS1G05_218T03_9000000582_04643cztM0_level2_quad_clean.evt
Size (bytes)459,086,40087,206,400
Size437.8 MB 83.2 MB
Events in quadrant A3,157,067559,766
Events in quadrant B3,151,915568,786
Events in quadrant C3,007,660545,159
Events in quadrant D4,146,178514,751

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140973
B0139672
C0136392
D0170512

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6476330.509574%
B6476310.478691%
C6476360.555899%
D64762904.478073%

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 7631 6477 13 13 0.17% 0.20%
B 7631 6477 0 0 0.00% 0.00%
C 7631 6477 12 12 0.16% 0.19%
D 7631 6477 215 215 2.82% 3.32%

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 14 111 214891 1392.76 757 740 153.8
A 8 15 10749 65.09 757 740 153.8
A 12 194 7699 45.26 757 740 153.8
B 15 204 105566 703.87 770 750 148.9
B 14 167 30426 199.28 770 750 148.9
B 4 80 15325 97.88 770 750 148.9
C 1 16 101158 581.27 741 742 172.8
C 9 247 9815 52.52 741 742 172.8
C 13 61 6066 30.82 741 742 172.8
D 8 112 770684 4442.86 719 697 173.3
D 2 234 262107 1508.35 719 697 173.3
D 2 136 169754 975.46 719 697 173.3

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