ASTROSAT CZTI

Data Quality Report

Orbit 30324

Creation date: 2024-06-27T20:13:42.729855
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/AS1A10_071T29_9000004358_30324cztM0_level2.evt modeM0/AS1A10_071T29_9000004358_30324cztM0_level2_quad_clean.evt
Size (bytes)526,599,360100,595,520
Size502.2 MB 95.9 MB
Events in quadrant A3,333,170664,623
Events in quadrant B5,439,953672,220
Events in quadrant C3,385,365648,981
Events in quadrant D3,371,694630,017

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138352
B0202742
C0139922
D0139572

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6170951.539708%
B61702143.468395%
C61691272.058680%
D6169641.037445%

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 7475 6170 3 3 0.04% 0.05%
B 7475 6170 20 20 0.27% 0.32%
C 7474 6169 1 1 0.01% 0.02%
D 7474 6170 6 6 0.08% 0.10%

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 14 239 38108 224.68 839 825 165.9
A 5 203 33615 197.6 839 825 165.9
A 8 192 26973 157.58 839 825 165.9
B 6 159 1663521 10843.5 827 806 153.3
B 6 36 508613 3311.7 827 806 153.3
B 12 111 18966 118.43 827 806 153.3
C 14 238 133300 699.84 812 820 189.3
C 3 233 65240 340.31 812 820 189.3
C 2 114 14802 73.86 812 820 189.3
D 13 104 133135 629.07 808 797 210.4
D 8 195 90119 424.59 808 797 210.4
D 2 250 48238 225.51 808 797 210.4

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