ASTROSAT CZTI

Data Quality Report

Orbit 25607

Creation date: 2024-06-27T19:19:28.741943
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/AS1A07_148T02_9000003728_25607cztM0_level2.evt modeM0/AS1A07_148T02_9000003728_25607cztM0_level2_quad_clean.evt
Size (bytes)566,101,44068,126,400
Size539.9 MB 65.0 MB
Events in quadrant A4,884,976408,953
Events in quadrant B3,591,408422,510
Events in quadrant C3,474,237394,411
Events in quadrant D4,748,064377,312

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0220
C0220
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0199190
B0143100
C0139280
D0185390

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6588620.941105%
B6588330.500911%
C6588691.047359%
D65881452.200971%

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 7888 6589 9 9 0.11% 0.14%
B 7888 6589 2 2 0.03% 0.03%
C 7888 6589 6 6 0.08% 0.09%
D 7888 6589 71 71 0.90% 1.08%

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 8 192 1284432 7265.56 889 876 176.7
A 6 16 148784 837.23 889 876 176.7
A 0 13 24996 136.53 889 876 176.7
B 0 219 58456 346.99 890 871 166.0
B 0 190 20003 115.28 890 871 166.0
B 12 111 19626 113.01 890 871 166.0
C 14 238 136570 692.04 848 856 196.1
C 0 207 21344 104.47 848 856 196.1
C 3 233 10097 47.12 848 856 196.1
D 1 52 1304348 6347.97 847 826 205.3
D 8 195 142004 687.52 847 826 205.3
D 13 174 41883 199.94 847 826 205.3

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