ASTROSAT CZTI

Data Quality Report

Orbit 08030

Creation date: 2024-06-27T15:27:05.324742
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/AS1A02_080T01_9000001104_08030cztM0_level2.evt modeM0/AS1A02_080T01_9000001104_08030cztM0_level2_quad_clean.evt
Size (bytes)496,998,72068,751,360
Size474.0 MB 65.6 MB
Events in quadrant A3,137,595419,970
Events in quadrant B3,573,885420,760
Events in quadrant C3,037,179409,222
Events in quadrant D4,866,353382,915

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136474
B0148763
C0134223
D0191053

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6425921.431907%
B64251512.350195%
C6425570.887160%
D64254827.501946%

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 7560 6427 4 4 0.05% 0.06%
B 7560 6427 50 50 0.66% 0.78%
C 7560 6427 0 0 0.00% 0.00%
D 7560 6427 282 282 3.73% 4.39%

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 15 234 47217 290.08 789 771 160.1
A 4 2 30782 187.44 789 771 160.1
A 0 226 7586 42.56 789 771 160.1
B 4 239 256038 1727.52 791 772 147.8
B 11 51 66170 442.58 791 772 147.8
B 10 16 42766 284.2 791 772 147.8
C 1 16 56957 320.13 761 766 175.5
C 13 61 5931 29.43 761 766 175.5
C 8 128 4322 20.26 761 766 175.5
D 2 250 1442252 7484.24 736 720 192.6
D 1 52 315739 1635.54 736 720 192.6
D 13 169 135761 701.11 736 720 192.6

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