ASTROSAT CZTI

Data Quality Report

Orbit 43315

Creation date: 2024-06-27T22:50:32.113344
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/AS1A12_088T25_9000005866_43315cztM0_level2.fits modeM0/AS1A12_088T25_9000005866_43315cztM0_level2_quad_clean.evt
Size (bytes)332,334,72092,056,320
Size316.9 MB 87.8 MB
Events in quadrant A3,584,424611,474
Events in quadrant B2,564,433656,412
Events in quadrant C2,584,672616,916
Events in quadrant D3,172,573547,160

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138122
B0105812
C0103752
D0127482

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0230
C0230
D0230

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A50812154.231451%
B5081240.472348%
C508130.059043%
D50811432.814407%

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 7204 5082 178 178 2.47% 3.50%
B 7204 5082 12 12 0.17% 0.24%
C 7204 5082 2 2 0.03% 0.04%
D 7204 5082 147 147 2.04% 2.89%

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 15 237 664278 5280.15 599 587 125.7
A 10 83 562992 4474.35 599 587 125.7
A 12 189 33123 258.85 599 587 125.7
B 0 190 33525 274.81 611 593 119.8
B 5 255 31656 259.21 611 593 119.8
B 5 172 25424 207.21 611 593 119.8
C 15 214 214417 1524.98 596 599 140.2
C 15 159 15803 108.44 596 599 140.2
C 3 233 13168 89.64 596 599 140.2
D 2 249 502765 3506.61 587 571 143.2
D 12 6 143128 995.42 587 571 143.2
D 1 52 120221 835.47 587 571 143.2

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