ASTROSAT CZTI

Data Quality Report

Orbit 47480

Creation date: 2024-07-09T10:41:28.647941
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_089T01_9000006330_47480cztM0_level2.fits modeM0/AS1A13_089T01_9000006330_47480cztM0_level2_quad_clean.evt
Size (bytes)578,704,320127,641,600
Size551.9 MB 121.7 MB
Events in quadrant A7,750,127840,385
Events in quadrant B4,789,958859,975
Events in quadrant C3,780,633840,706
Events in quadrant D4,479,882765,736

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0283890
B0197390
C0169830
D0189290

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A80211732.156838%
B80202603.241895%
C8020140.174564%
D8020470.586035%

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 8021 8021 0 0 0.00% 0.00%
B 8020 8020 124 124 1.55% 1.55%
C 8020 8020 2 2 0.02% 0.02%
D 8020 8020 36 36 0.45% 0.45%

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 4141135 21561.56 917 893 192.0
A 9 191 57804 296.38 917 893 192.0
A 14 235 13991 68.21 917 893 192.0
B 5 32 499902 2724.17 913 882 183.2
B 0 200 447004 2435.4 913 882 183.2
B 0 190 124460 674.62 913 882 183.2
C 3 233 212995 985.45 904 908 215.2
C 0 207 21114 93.89 904 908 215.2
C 12 250 18913 83.66 904 908 215.2
D 11 192 731095 3198.8 897 870 228.3
D 2 249 110707 481.15 897 870 228.3
D 13 23 63084 272.53 897 870 228.3

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