ASTROSAT CZTI

Data Quality Report

Orbit 06478

Creation date: 2024-06-27T15:07:44.292863
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/AS1G06_139T02_9000000862_06478cztM0_level2.evt modeM0/AS1G06_139T02_9000000862_06478cztM0_level2_quad_clean.evt
Size (bytes)237,260,16063,074,880
Size226.3 MB 60.2 MB
Events in quadrant A1,664,916416,918
Events in quadrant B1,770,432414,339
Events in quadrant C1,617,270408,973
Events in quadrant D1,869,899398,492

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A077910
B079300
C077720
D083060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0760
B0760
C0760
D0760

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A384050.130208%
B3840120.312500%
C384010.026042%
D3840240.625000%

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 3840 3840 0 0 0.00% 0.00%
B 3840 3840 0 0 0.00% 0.00%
C 3840 3840 0 0 0.00% 0.00%
D 3840 3840 22 22 0.57% 0.57%

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 10 133 5681 58.36 429 420 90.1
A 8 15 4812 48.72 429 420 90.1
A 12 194 4065 40.43 429 420 90.1
B 0 228 84243 993.04 428 417 84.4
B 15 204 10603 120.67 428 417 84.4
B 12 111 8266 92.98 428 417 84.4
C 1 16 6277 60.36 412 415 97.1
C 13 61 3262 29.31 412 415 97.1
C 9 54 2642 22.93 412 415 97.1
D 2 152 78483 754.82 416 403 103.4
D 2 14 68485 658.17 416 403 103.4
D 13 137 64152 616.28 416 403 103.4

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