ASTROSAT CZTI

Data Quality Report

Orbit 03058

Creation date: 2024-06-27T14:24:05.585060
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/AS1G05_238T03_9000000424_03058cztM0_level2.evt modeM0/AS1G05_238T03_9000000424_03058cztM0_level2_quad_clean.evt
Size (bytes)324,777,60060,445,440
Size309.7 MB 57.6 MB
Events in quadrant A2,255,633374,037
Events in quadrant B2,438,236369,127
Events in quadrant C2,139,258367,497
Events in quadrant D2,653,951360,969

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0106513
B0108512
C0103702
D0117132

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0250

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5109330.645919%
B5109180.352319%
C510990.176160%
D5109480.939518%

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 7235 5110 17 17 0.23% 0.33%
B 7235 5110 10 10 0.14% 0.20%
C 7235 5110 7 7 0.10% 0.14%
D 7235 5110 53 53 0.73% 1.04%

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 14 238 157493 1450.27 532 519 108.2
A 0 50 13870 123.35 532 519 108.2
A 3 1 8442 73.2 532 519 108.2
B 15 204 156593 1501.76 541 529 103.9
B 0 219 55574 529.68 541 529 103.9
B 0 230 41704 396.22 541 529 103.9
C 1 16 51628 411.96 523 524 124.1
C 6 80 27412 216.75 523 524 124.1
C 4 207 6115 45.07 523 524 124.1
D 2 152 369117 2843.13 522 505 129.6
D 13 114 84763 649.89 522 505 129.6
D 10 213 55800 426.49 522 505 129.6

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