ASTROSAT CZTI

Data Quality Report

Orbit 03574

Creation date: 2024-06-27T14:31:07.966043
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_045T01_9000000468_03574cztM0_level2.evt modeM0/AS1G05_045T01_9000000468_03574cztM0_level2_quad_clean.evt
Size (bytes)427,792,32086,423,040
Size408.0 MB 82.4 MB
Events in quadrant A2,936,485561,430
Events in quadrant B3,838,263555,947
Events in quadrant C2,763,277550,487
Events in quadrant D3,013,826534,182

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126192
B0155221
C0122921
D0130321

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5944651.093540%
B5944761.278600%
C5944370.622476%
D5944871.463661%

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 7224 5945 5 5 0.07% 0.08%
B 7224 5945 4 4 0.06% 0.07%
C 7224 5945 1 1 0.01% 0.02%
D 7224 5945 43 43 0.60% 0.72%

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 80543 552.68 716 703 144.5
A 0 118 51295 350.22 716 703 144.5
A 3 1 18432 122.73 716 703 144.5
B 15 204 892549 6545.2 718 701 136.3
B 0 229 34632 249.02 718 701 136.3
B 14 167 31491 225.97 718 701 136.3
C 1 16 32701 198.17 694 697 161.5
C 14 48 12353 72.17 694 697 161.5
C 13 61 5995 32.81 694 697 161.5
D 13 223 109458 651.69 696 677 166.9
D 1 193 94589 562.61 696 677 166.9
D 5 233 43106 254.19 696 677 166.9

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