ASTROSAT CZTI

Data Quality Report

Orbit 30759

Creation date: 2024-06-27T20:19:17.476218
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/AS1A10_053T37_9000004444_30759cztM0_level2.evt modeM0/AS1A10_053T37_9000004444_30759cztM0_level2_quad_clean.evt
Size (bytes)520,623,36099,544,320
Size496.5 MB 94.9 MB
Events in quadrant A3,114,913653,273
Events in quadrant B4,946,851665,324
Events in quadrant C3,340,254647,398
Events in quadrant D3,962,195632,953

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127211
B0183651
C0135421
D0157431

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5948450.756557%
B59491061.781812%
C59491392.336527%
D5949580.974954%

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 7258 5948 3 3 0.04% 0.05%
B 7259 5949 0 0 0.00% 0.00%
C 7259 5949 6 6 0.08% 0.10%
D 7259 5949 21 21 0.29% 0.35%

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 8 255 11312 65.46 805 792 160.7
A 13 254 11005 63.55 805 792 160.7
A 3 137 7392 41.07 805 792 160.7
B 6 159 1715516 11465.92 798 778 149.6
B 0 190 46268 304.18 798 778 149.6
B 6 36 23001 148.6 798 778 149.6
C 14 238 127779 696.41 785 793 182.3
C 3 233 63523 344.02 785 793 182.3
C 0 10 42824 230.5 785 793 182.3
D 8 195 430291 2275.74 793 775 188.7
D 10 253 234086 1236.17 793 775 188.7
D 12 227 159769 842.41 793 775 188.7

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