ASTROSAT CZTI

Data Quality Report

Orbit 03363

Creation date: 2024-06-27T14:28:03.898967
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_112T01_9000000452_03363cztM0_level2.evt modeM0/AS1G05_112T01_9000000452_03363cztM0_level2_quad_clean.evt
Size (bytes)1,218,784,320191,286,720
Size1.1 GB 182.4 MB
Events in quadrant A9,003,2491,141,509
Events in quadrant B9,197,9681,149,884
Events in quadrant C8,482,3951,145,485
Events in quadrant D8,991,1171,097,166

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03680
B03680
C03680
D03680

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0396486
B0389483
C0381195
D0403976

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A182597354.025412%
B182606603.614458%
C182594332.371433%
D182597263.976121%

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 18950 18264 74 74 0.39% 0.41%
B 18950 18264 11 11 0.06% 0.06%
C 18950 18264 3 3 0.02% 0.02%
D 18950 18263 218 218 1.15% 1.19%

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 14 249 408353 916.39 2158 2107 443.3
A 0 50 243866 545.35 2158 2107 443.3
A 0 226 22952 47.02 2158 2107 443.3
B 15 204 468093 1096.86 2182 2129 424.8
B 2 249 103646 238.97 2182 2129 424.8
B 4 81 88647 203.66 2182 2129 424.8
C 8 128 52692 102.2 2115 2127 494.7
C 1 16 25731 47.71 2115 2127 494.7
C 6 80 23594 43.39 2115 2127 494.7
D 13 223 534291 1044.65 2100 2030 509.5
D 12 33 376537 735.03 2100 2030 509.5
D 14 156 61231 116.19 2100 2030 509.5

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