ASTROSAT CZTI

Data Quality Report

Orbit 10503

Creation date: 2024-06-27T16:00:13.866993
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/AS1G07_057T01_9000001520_10503cztM0_level2.evt modeM0/AS1G07_057T01_9000001520_10503cztM0_level2_quad_clean.evt
Size (bytes)458,265,60078,917,760
Size437.0 MB 75.3 MB
Events in quadrant A3,672,580507,013
Events in quadrant B3,002,989440,641
Events in quadrant C3,491,578513,016
Events in quadrant D3,221,586429,210

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0376194
B0376202
C0376194
D0360182

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0178
B0189
C0189
D0167

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03671121030
B04697134358
C03807622286
D05071837585

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A783980.102054%
B6293110.174797%
C7866100.127129%
D640160.093735%

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 10446 9122 0 0 0.00% 0.00%
B 10446 7634 2 2 0.02% 0.03%
C 10446 9127 5 5 0.05% 0.05%
D 10446 7254 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 3 80 84385 453.81 909 889 184.0
A 15 239 67768 363.5 909 889 184.0
A 5 16 12231 61.65 909 889 184.0
B 4 239 64456 454.78 727 708 140.2
B 0 214 50152 352.74 727 708 140.2
B 11 51 27384 190.31 727 708 140.2
C 14 234 37455 177.25 885 889 206.3
C 13 61 6541 27.4 885 889 206.3
C 14 67 2504 7.83 885 889 206.3
D 1 20 249981 1390.12 704 687 179.3
D 2 16 172233 956.58 704 687 179.3
D 12 233 44636 245.07 704 687 179.3

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