ASTROSAT CZTI

Data Quality Report

Orbit 02503

Creation date: 2024-06-27T14:18:32.303351
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/AS1SLEW_01234_9000000373_02503cztM0_level2.evt modeM0/AS1SLEW_01234_9000000373_02503cztM0_level2_quad_clean.evt
Size (bytes)39,893,76011,554,560
Size38.0 MB 11.0 MB
Events in quadrant A283,42674,186
Events in quadrant B295,94775,974
Events in quadrant C289,78574,975
Events in quadrant D292,50472,268

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012690
B012810
C012760
D013210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63300.000000%
B63300.000000%
C63300.000000%
D63320.315956%

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 633 633 0 0 0.00% 0.00%
B 633 633 0 0 0.00% 0.00%
C 633 633 0 0 0.00% 0.00%
D 633 633 1 1 0.16% 0.16%

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 12 194 838 45.72 73 71 16.8
A 0 226 772 41.79 73 71 16.8
A 0 128 772 41.79 73 71 16.8
B 10 244 1067 59.71 76 74 16.6
B 12 111 1034 57.72 76 74 16.6
B 11 111 816 44.61 76 74 16.6
C 10 65 2035 103.18 73 73 19.0
C 13 61 696 32.76 73 73 19.0
C 5 250 496 22.24 73 73 19.0
D 11 130 13616 741.62 70 68 18.3
D 2 184 9174 498.46 70 68 18.3
D 1 31 4182 225.2 70 68 18.3

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
Veto Counter