ASTROSAT CZTI

Data Quality Report

Orbit 05296

Creation date: 2024-06-27T14:53:36.374739
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_212T01_9000000672_05296cztM0_level2.evt modeM0/AS1G05_212T01_9000000672_05296cztM0_level2_quad_clean.evt
Size (bytes)621,766,080103,726,080
Size593.0 MB 98.9 MB
Events in quadrant A4,703,451688,593
Events in quadrant B3,339,195728,580
Events in quadrant C2,870,227723,458
Events in quadrant D7,487,762557,421

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0181863
B0141872
C0129402
D0266472

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63345358.446479%
B6334871.373540%
C633450.078939%
D6334163625.828860%

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 7644 6335 523 523 6.84% 8.26%
B 7644 6335 33 33 0.43% 0.52%
C 7644 6335 0 0 0.00% 0.00%
D 7644 6335 1366 1366 17.87% 21.56%

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 50 1617653 11063.14 720 704 146.2
A 13 251 317095 2164.74 720 704 146.2
A 12 194 7200 44.45 720 704 146.2
B 10 16 199712 1405.67 756 738 141.6
B 4 48 141779 996.4 756 738 141.6
B 15 54 25391 174.16 756 738 141.6
C 1 16 14264 82.1 728 732 164.8
C 14 67 7494 41.02 728 732 164.8
C 13 61 5997 31.94 728 732 164.8
D 11 145 3970660 27019.48 605 587 146.9
D 2 33 814464 5539.08 605 587 146.9
D 8 195 154354 1046.51 605 587 146.9

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