ASTROSAT CZTI

Data Quality Report

Orbit 22348

Creation date: 2024-06-27T18:40:24.316326
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/AS1C05_004T01_9000003308_22348cztM0_level2.evt modeM0/AS1C05_004T01_9000003308_22348cztM0_level2_quad_clean.evt
Size (bytes)8,383,6802,952,000
Size8.0 MB 2.8 MB
Events in quadrant A56,70517,638
Events in quadrant B61,08318,650
Events in quadrant C61,85018,090
Events in quadrant D62,38317,490

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02420
B02440
C02450
D02480

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A12100.000000%
B12121.652893%
C12100.000000%
D12100.000000%

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 121 121 0 0 0.00% 0.00%
B 121 121 0 0 0.00% 0.00%
C 121 121 0 0 0.00% 0.00%
D 121 121 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 13 254 156 29.49 14 14 4.8
A 0 226 140 26.17 14 14 4.8
A 3 137 116 21.18 14 14 4.8
B 0 229 652 133.24 15 15 4.8
B 12 111 314 62.54 15 15 4.8
B 14 111 256 50.41 15 15 4.8
C 14 238 2244 422.54 15 15 5.3
C 13 61 103 16.68 15 15 5.3
C 3 9 80 12.32 15 15 5.3
D 12 227 6848 1301.12 14 14 5.3
D 2 234 417 76.73 14 14 5.3
D 13 243 147 25.32 14 14 5.3

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