ASTROSAT CZTI

Data Quality Report

Orbit 24084

Creation date: 2024-06-27T19:01:57.830609
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/AS1T03_182T01_9000003560_24084cztM0_level2.evt modeM0/AS1T03_182T01_9000003560_24084cztM0_level2_quad_clean.evt
Size (bytes)534,124,800109,428,480
Size509.4 MB 104.4 MB
Events in quadrant A3,509,615721,277
Events in quadrant B3,888,876733,107
Events in quadrant C3,582,466704,832
Events in quadrant D4,737,962685,039

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143412
B0157602
C0145792
D0184582

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6745290.429948%
B6745961.423277%
C6745670.993328%
D67451702.520385%

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 8000 6746 2 2 0.03% 0.03%
B 8000 6746 38 38 0.47% 0.56%
C 8000 6746 0 0 0.00% 0.00%
D 8000 6746 107 107 1.34% 1.59%

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 6 16 13455 69.95 905 891 179.6
A 13 254 11363 58.3 905 891 179.6
A 2 250 9694 49.01 905 891 179.6
B 0 245 265280 1587.91 896 875 166.5
B 0 197 72796 431.93 896 875 166.5
B 0 229 20086 115.37 896 875 166.5
C 14 238 139234 680.14 875 884 203.4
C 7 247 28584 136.17 875 884 203.4
C 13 61 6046 25.38 875 884 203.4
D 8 195 837078 3886.53 882 860 215.2
D 1 52 296717 1375.07 882 860 215.2
D 11 176 157693 728.92 882 860 215.2

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