ASTROSAT CZTI

Data Quality Report

Orbit 23967

Creation date: 2024-06-27T19:00:35.792337
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/AS1A07_001T02_9000003546_23967cztM0_level2.evt modeM0/AS1A07_001T02_9000003546_23967cztM0_level2_quad_clean.evt
Size (bytes)392,713,92072,921,600
Size374.5 MB 69.5 MB
Events in quadrant A1,806,269520,748
Events in quadrant B1,854,081526,266
Events in quadrant C2,023,110506,560
Events in quadrant D5,949,121383,598

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A077884
B0791514
C085222
D02037337

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0760
B0760
C0760
D0760

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A383050.130548%
B382690.235233%
C3832270.704593%
D3827147538.541939%

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 3832 3831 0 0 0.00% 0.00%
B 3833 3832 3 3 0.08% 0.08%
C 3833 3833 8 8 0.21% 0.21%
D 3833 3832 1100 1100 28.70% 28.71%

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 6195 60.69 467 457 94.5
A 0 226 4077 38.29 467 457 94.5
A 3 137 3887 36.28 467 457 94.5
B 0 197 28418 319.82 460 448 87.5
B 12 111 10238 111.94 460 448 87.5
B 11 111 8979 97.55 460 448 87.5
C 0 239 154062 1493.06 446 449 102.9
C 14 238 71882 694.3 446 449 102.9
C 7 221 30052 287.73 446 449 102.9
D 12 218 3963646 44068.72 370 360 89.9
D 12 250 178676 1982.74 370 360 89.9
D 1 52 137718 1527.32 370 360 89.9

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