ASTROSAT CZTI

Data Quality Report

Orbit 46203

Creation date: 2024-06-27T23:20:22.394626
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/AS1A13_093T40_9000006182_46203cztM0_level2.fits modeM0/AS1A13_093T40_9000006182_46203cztM0_level2_quad_clean.evt
Size (bytes)534,104,640122,178,240
Size509.4 MB 116.5 MB
Events in quadrant A6,524,401816,034
Events in quadrant B4,105,381835,367
Events in quadrant C3,386,879797,164
Events in quadrant D5,161,831719,214

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0243912
B0171722
C0159302
D0206602

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76362563.352541%
B76371962.566453%
C7637440.576142%
D76373164.137750%

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 7666 7638 6 6 0.08% 0.08%
B 7667 7639 20 20 0.26% 0.26%
C 7667 7639 8 8 0.10% 0.10%
D 7667 7639 212 212 2.77% 2.78%

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 10 83 3149097 17782.6 850 830 177.0
A 0 247 60887 339.22 850 830 177.0
A 9 191 14509 77.26 850 830 177.0
B 3 112 614571 3697.26 847 819 166.0
B 5 172 82170 490.06 847 819 166.0
B 0 155 24300 141.45 847 819 166.0
C 12 2 121824 622.71 831 832 194.3
C 14 254 20674 102.12 831 832 194.3
C 13 61 5505 24.05 831 832 194.3
D 1 52 1209183 5897.8 823 797 204.9
D 2 249 268581 1306.98 823 797 204.9
D 13 249 224821 1093.4 823 797 204.9

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