ASTROSAT CZTI

Data Quality Report

Orbit 47806

Creation date: 2024-07-31T08:21:29.372565
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/AS1A13_037T05_9000006352_47806cztM0_level2.fits modeM0/AS1A13_037T05_9000006352_47806cztM0_level2_quad_clean.evt
Size (bytes)653,633,28097,479,360
Size623.4 MB 93.0 MB
Events in quadrant A6,633,763708,235
Events in quadrant B2,947,016739,375
Events in quadrant C2,780,634700,808
Events in quadrant D11,329,450349,040

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0239941
B0132531
C0131411
D0381421

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65061352.075008%
B6506210.322779%
C650650.076852%
D6506315548.493698%

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 7616 6507 70 70 0.92% 1.08%
B 7616 6507 7 7 0.09% 0.11%
C 7616 6507 0 0 0.00% 0.00%
D 7616 6507 2996 2996 39.34% 46.04%

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 10 83 3718744 25113.99 713 699 148.0
A 0 31 126906 852.48 713 699 148.0
A 0 247 24818 162.91 713 699 148.0
B 5 255 28262 195.61 721 700 140.9
B 0 200 23829 164.15 721 700 140.9
B 12 111 18256 124.6 721 700 140.9
C 14 254 11117 62.63 705 710 166.2
C 12 250 10048 56.19 705 710 166.2
C 12 2 5071 26.24 705 710 166.2
D 12 2 8981654 67216.76 527 510 133.6
D 13 171 96156 715.83 527 510 133.6
D 1 232 55903 414.57 527 510 133.6

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