ASTROSAT CZTI

Data Quality Report

Orbit 21569

Creation date: 2024-06-27T18:29:36.931267
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/AS1A05_155T02_9000003200_21569cztM0_level2.evt modeM0/AS1A05_155T02_9000003200_21569cztM0_level2_quad_clean.evt
Size (bytes)451,477,44092,053,440
Size430.6 MB 87.8 MB
Events in quadrant A3,174,814594,225
Events in quadrant B3,284,830605,034
Events in quadrant C3,217,790580,815
Events in quadrant D3,569,408570,006

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129791
B0134011
C0130721
D0143851

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62681001.595405%
B62691031.643005%
C62691292.057744%
D62691342.137502%

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 7293 6269 0 0 0.00% 0.00%
B 7294 6270 1 1 0.01% 0.02%
C 7294 6270 0 0 0.00% 0.00%
D 7294 6270 25 25 0.34% 0.40%

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 12 96 18101 104.95 819 801 164.8
A 13 254 8267 45.29 819 801 164.8
A 0 226 7195 38.79 819 801 164.8
B 0 228 38222 245.4 811 791 152.5
B 0 190 32383 207.12 811 791 152.5
B 0 230 22817 144.4 811 791 152.5
C 14 238 124729 668.2 792 797 185.5
C 13 61 5608 25.94 792 797 185.5
C 3 233 4222 18.47 792 797 185.5
D 1 52 295497 1507.47 807 786 195.5
D 2 136 52978 266.97 807 786 195.5
D 13 153 51191 257.83 807 786 195.5

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