ASTROSAT CZTI

Data Quality Report

Orbit 30586

Creation date: 2024-06-27T20:17:19.992366
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_103T02_9000004406_30586cztM0_level2.evt modeM0/AS1A10_103T02_9000004406_30586cztM0_level2_quad_clean.evt
Size (bytes)594,840,96078,166,080
Size567.3 MB 74.5 MB
Events in quadrant A3,671,614496,549
Events in quadrant B5,594,676489,904
Events in quadrant C3,907,840467,625
Events in quadrant D4,402,101460,526

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150751
B0206841
C0158421
D0175361

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64821512.329528%
B64832794.303563%
C64833725.738084%
D64822614.026535%

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 7767 6483 2 2 0.03% 0.03%
B 7768 6484 32 32 0.41% 0.49%
C 7768 6484 62 62 0.80% 0.96%
D 7767 6483 112 112 1.44% 1.73%

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 12 96 27525 145.6 942 925 182.7
A 13 254 12074 61.03 942 925 182.7
A 8 192 10717 53.6 942 925 182.7
B 6 159 1744278 10353.92 921 900 168.4
B 0 229 140578 829.55 921 900 168.4
B 5 255 44174 257.0 921 900 168.4
C 14 238 185414 936.05 870 879 197.1
C 0 10 179618 906.65 870 879 197.1
C 14 254 53851 268.7 870 879 197.1
D 13 249 418836 2008.82 897 876 208.1
D 13 104 253443 1213.9 897 876 208.1
D 8 195 121032 577.5 897 876 208.1

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