ASTROSAT CZTI

Data Quality Report

Orbit 30616

Creation date: 2024-06-27T20:17:44.630337
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_071T05_9000004412_30616cztM0_level2.evt modeM0/AS1A10_071T05_9000004412_30616cztM0_level2_quad_clean.evt
Size (bytes)568,235,520114,963,840
Size541.9 MB 109.6 MB
Events in quadrant A3,450,498793,730
Events in quadrant B5,056,251783,283
Events in quadrant C3,504,845742,150
Events in quadrant D4,773,290725,250

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140901
B0193351
C0141711
D0189351

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62661502.393872%
B62662293.654644%
C62652423.862729%
D62662594.133418%

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 7461 6268 4 4 0.05% 0.06%
B 7461 6268 3 3 0.04% 0.05%
C 7460 6267 21 21 0.28% 0.34%
D 7461 6268 143 143 1.92% 2.28%

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 0 13 59436 336.55 873 859 174.1
A 13 254 11912 63.5 873 859 174.1
A 8 192 9886 51.86 873 859 174.1
B 6 159 1662791 10371.13 845 826 160.2
B 0 229 54174 332.91 845 826 160.2
B 12 111 19070 113.85 845 826 160.2
C 14 238 133330 701.15 814 821 189.0
C 0 10 116064 609.79 814 821 189.0
C 3 233 67487 352.75 814 821 189.0
D 8 195 942348 4738.32 840 820 198.7
D 2 250 226479 1135.65 840 820 198.7
D 1 52 147228 736.81 840 820 198.7

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