ASTROSAT CZTI

Data Quality Report

Orbit 06863

Creation date: 2024-06-27T15:12:31.605067
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/AS1A02_005T01_9000000948_06863cztM0_level2.evt modeM0/AS1A02_005T01_9000000948_06863cztM0_level2_quad_clean.evt
Size (bytes)466,214,40088,355,520
Size444.6 MB 84.3 MB
Events in quadrant A3,148,865553,820
Events in quadrant B3,533,626561,727
Events in quadrant C3,235,445557,703
Events in quadrant D3,744,332533,562

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140123
B0151292
C0139812
D0156732

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6728851.263377%
B67281311.947087%
C6728610.906659%
D67281512.244352%

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 7513 6729 1 1 0.01% 0.01%
B 7513 6729 9 9 0.12% 0.13%
C 7513 6729 0 0 0.00% 0.00%
D 7513 6729 63 63 0.84% 0.94%

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 23 15918 91.85 807 789 164.7
A 4 2 11534 65.23 807 789 164.7
A 13 248 9596 53.47 807 789 164.7
B 4 80 180134 1160.66 811 790 154.5
B 4 48 59613 380.68 811 790 154.5
B 0 214 33238 209.99 811 790 154.5
C 9 247 131205 710.57 790 793 183.5
C 12 4 9402 46.91 790 793 183.5
C 13 61 6287 29.93 790 793 183.5
D 2 152 227107 1170.9 785 763 193.3
D 13 169 144850 745.37 785 763 193.3
D 2 216 132440 681.18 785 763 193.3

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
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter