ASTROSAT CZTI

Data Quality Report

Orbit 04988

Creation date: 2024-06-27T14:49:47.136977
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/AS1G05_115T01_9000000634_04988cztM0_level2.evt modeM0/AS1G05_115T01_9000000634_04988cztM0_level2_quad_clean.evt
Size (bytes)39,741,12010,278,720
Size37.9 MB 9.8 MB
Events in quadrant A317,51563,517
Events in quadrant B276,88664,271
Events in quadrant C276,03865,571
Events in quadrant D284,89663,759

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148497
B0140794
C0139368
D0141159

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65200.000000%
B64900.000000%
C66100.000000%
D66600.000000%

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 694 659 0 0 0.00% 0.00%
B 693 659 0 0 0.00% 0.00%
C 694 664 0 0 0.00% 0.00%
D 695 673 0 0 0.00% 0.00%

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 8 15 53277 3295.88 68 66 16.1
A 0 226 716 40.26 68 66 16.1
A 12 194 652 36.3 68 66 16.1
B 0 219 8434 547.4 69 67 15.3
B 12 111 1201 74.19 69 67 15.3
B 11 111 917 55.61 69 67 15.3
C 9 54 770 38.78 70 70 18.0
C 13 61 561 27.2 70 70 18.0
C 14 67 250 9.97 70 70 18.0
D 2 234 8802 458.59 71 68 19.0
D 13 105 2174 110.58 71 68 19.0
D 7 67 2135 108.53 71 68 19.0

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