ASTROSAT CZTI

Data Quality Report

Orbit 02600

Creation date: 2024-06-27T14:20:01.859521
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/AS1T01_071T01_9000000382_02600cztM0_level2.evt modeM0/AS1T01_071T01_9000000382_02600cztM0_level2_quad_clean.evt
Size (bytes)825,624,000145,984,320
Size787.4 MB 139.2 MB
Events in quadrant A5,707,683876,267
Events in quadrant B6,099,698888,477
Events in quadrant C5,754,095886,961
Events in quadrant D6,551,162860,778

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0266632
B0273722
C0269292
D0288652

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02680
B02680
C02680
D02680

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A13146600.456413%
B13146700.532481%
C13146530.403164%
D131461180.897611%

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 14211 13148 0 0 0.00% 0.00%
B 14211 13148 6 6 0.04% 0.05%
C 14211 13148 22 22 0.15% 0.17%
D 14211 13148 66 66 0.46% 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 12 194 16519 49.71 1476 1440 303.3
A 0 226 15863 47.55 1476 1440 303.3
A 3 1 12645 36.94 1476 1440 303.3
B 6 36 102308 348.1 1498 1463 289.7
B 14 167 52591 176.49 1498 1463 289.7
B 0 171 43905 146.5 1498 1463 289.7
C 14 223 73724 218.09 1423 1428 331.5
C 8 112 28541 81.79 1423 1428 331.5
C 10 65 26671 76.15 1423 1428 331.5
D 1 83 385408 1145.98 1412 1376 335.1
D 2 54 227615 675.12 1412 1376 335.1
D 13 169 222703 660.46 1412 1376 335.1

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
Veto Counter