ASTROSAT CZTI

Data Quality Report

Orbit 14063

Creation date: 2024-06-27T16:49:52.633419
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/AS1G08_055T01_9000002076_14063cztM0_level2.evt modeM0/AS1G08_055T01_9000002076_14063cztM0_level2_quad_clean.evt
Size (bytes)486,967,68098,184,960
Size464.4 MB 93.6 MB
Events in quadrant A3,389,121636,155
Events in quadrant B3,323,529652,476
Events in quadrant C3,161,242632,020
Events in quadrant D4,429,579596,286

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142302
B0139111
C0135301
D0174361

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65481732.642028%
B6548951.450825%
C6548701.069029%
D65482373.619426%

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 7384 6550 88 88 1.19% 1.34%
B 7384 6550 6 6 0.08% 0.09%
C 7384 6550 1 1 0.01% 0.02%
D 7384 6550 130 130 1.76% 1.98%

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 9 143 312654 1977.27 776 760 157.7
A 12 189 70268 440.65 776 760 157.7
A 8 15 20247 123.54 776 760 157.7
B 0 189 53504 357.38 782 762 147.6
B 3 209 46655 310.97 782 762 147.6
B 4 80 45972 306.34 782 762 147.6
C 3 233 145291 818.7 763 768 176.5
C 0 207 32345 178.88 763 768 176.5
C 10 22 6622 33.16 763 768 176.5
D 1 52 725631 3926.39 746 727 184.6
D 2 152 364321 1969.38 746 727 184.6
D 8 195 127451 686.39 746 727 184.6

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