ASTROSAT CZTI

Data Quality Report

Orbit 13186

Creation date: 2024-06-27T16:37:31.189890
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/AS1T02_012T07_9000001958_13186cztM0_level2.evt modeM0/AS1T02_012T07_9000001958_13186cztM0_level2_quad_clean.evt
Size (bytes)580,345,92067,262,400
Size553.5 MB 64.1 MB
Events in quadrant A3,319,872421,601
Events in quadrant B4,537,011394,500
Events in quadrant C3,129,061420,988
Events in quadrant D6,155,512351,909

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137353
B0175042
C0133202
D0225472

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6407260.405806%
B64075688.865304%
C6407200.312159%
D6407104416.294678%

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 7753 6409 0 0 0.00% 0.00%
B 7753 6409 359 359 4.63% 5.60%
C 7753 6409 2 2 0.03% 0.03%
D 7753 6409 728 728 9.39% 11.36%

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 12 189 161250 992.07 807 792 161.7
A 1 162 14521 84.88 807 792 161.7
A 9 143 11186 64.26 807 792 161.7
B 4 239 1337030 9213.42 779 762 145.0
B 3 64 55034 374.2 779 762 145.0
B 0 218 34606 233.35 779 762 145.0
C 15 208 41202 223.01 792 798 181.2
C 13 61 5708 27.1 792 798 181.2
C 3 202 1978 6.51 792 798 181.2
D 13 122 2992218 17167.89 728 708 174.3
D 1 52 236549 1353.46 728 708 174.3
D 10 157 50047 283.15 728 708 174.3

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