ASTROSAT CZTI

Data Quality Report

Orbit 28162

Creation date: 2024-06-27T19:48:43.871449
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_073T05_9000004068_28162cztM0_level2.evt modeM0/AS1A10_073T05_9000004068_28162cztM0_level2_quad_clean.evt
Size (bytes)317,203,20056,361,600
Size302.5 MB 53.8 MB
Events in quadrant A1,900,990369,851
Events in quadrant B2,062,071368,360
Events in quadrant C1,929,704353,038
Events in quadrant D3,444,045336,126

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A081140
B086020
C082220
D0129360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3950210.531646%
B3950621.569620%
C3950591.493671%
D39503208.101266%

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 4750 3950 0 0 0.00% 0.00%
B 4750 3950 20 20 0.42% 0.51%
C 4750 3951 0 0 0.00% 0.00%
D 4750 3951 239 239 5.03% 6.05%

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 13 254 6175 56.6 491 480 100.6
A 3 137 4816 43.09 491 480 100.6
A 0 226 4239 37.36 491 480 100.6
B 10 246 74895 797.05 483 470 93.4
B 10 245 67055 713.09 483 470 93.4
B 12 111 11744 120.74 483 470 93.4
C 14 238 75551 683.04 465 467 109.9
C 3 233 33367 299.29 465 467 109.9
C 2 16 4748 38.94 465 467 109.9
D 1 52 890340 8083.15 458 444 110.1
D 7 80 330697 2999.77 458 444 110.1
D 8 195 162724 1474.03 458 444 110.1

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