ASTROSAT CZTI

Data Quality Report

Orbit 15210

Creation date: 2024-06-27T17:05:20.455776
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/AS1T02_071T01_9000002246_15210cztM0_level2.evt modeM0/AS1T02_071T01_9000002246_15210cztM0_level2_quad_clean.evt
Size (bytes)505,411,200126,509,760
Size482.0 MB 120.6 MB
Events in quadrant A3,112,869870,641
Events in quadrant B4,425,245842,499
Events in quadrant C4,197,388857,376
Events in quadrant D3,146,813824,764

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134503
B0174932
C0171432
D0136922

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6255490.783373%
B62555478.745004%
C6255360.575540%
D6255540.863309%

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 7461 6257 6 6 0.08% 0.10%
B 7461 6256 374 374 5.01% 5.98%
C 7461 6256 0 0 0.00% 0.00%
D 7461 6257 31 31 0.42% 0.50%

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 12 189 62464 395.78 780 764 155.9
A 9 143 26231 163.36 780 764 155.9
A 13 248 14080 85.42 780 764 155.9
B 3 64 1052472 7486.11 752 735 140.5
B 10 245 274713 1950.13 752 735 140.5
B 3 112 56843 399.37 752 735 140.5
C 3 233 1285863 7578.5 745 750 169.6
C 7 247 5568 28.41 745 750 169.6
C 13 61 5418 27.53 745 750 169.6
D 2 33 172646 948.31 749 725 181.3
D 7 38 55237 300.69 749 725 181.3
D 13 104 24158 129.26 749 725 181.3

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