ASTROSAT CZTI

Data Quality Report

Orbit 28300

Creation date: 2024-06-27T19:50:13.431443
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/AS1A10_102T10_9000004080_28300cztM0_level2.evt modeM0/AS1A10_102T10_9000004080_28300cztM0_level2_quad_clean.evt
Size (bytes)487,566,720100,457,280
Size465.0 MB 95.8 MB
Events in quadrant A3,566,164654,400
Events in quadrant B3,255,032683,493
Events in quadrant C3,181,632648,815
Events in quadrant D4,326,652607,069

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146950
B0137670
C0135410
D0172270

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6433570.886056%
B6432440.684080%
C6432771.197139%
D64322884.477612%

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 7633 6434 31 31 0.41% 0.48%
B 7632 6433 3 3 0.04% 0.05%
C 7632 6433 0 0 0.00% 0.00%
D 7632 6433 254 254 3.33% 3.95%

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 15 174 455531 2872.74 797 781 158.3
A 4 2 25655 157.13 797 781 158.3
A 13 254 10852 63.62 797 781 158.3
B 10 245 96050 636.23 800 780 149.7
B 12 111 17978 114.85 800 780 149.7
B 4 200 17716 113.1 800 780 149.7
C 14 238 128593 717.45 767 774 178.2
C 3 233 63327 351.11 767 774 178.2
C 13 61 5325 25.54 767 774 178.2
D 8 195 469662 2639.82 751 732 177.6
D 2 82 369517 2076.06 751 732 177.6
D 2 250 217662 1221.2 751 732 177.6

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