ASTROSAT CZTI

Data Quality Report

Orbit 20240219_A13_038T01_9000006076_level2

Creation date: 2024-03-05T16:36:45.182026
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/AS1A13_038T01_9000006076cztM0_level2.fits modeM0/AS1A13_038T01_9000006076cztM0_level2_quad_clean.evt
Size (bytes)107,674,560107,769,600
Size102.7 MB 102.8 MB
Events in quadrant A633,266636,163
Events in quadrant B622,838650,062
Events in quadrant C644,916617,493
Events in quadrant D541,978541,460

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0310
C0310
D0310

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0378300
B0262680
C0251490
D0299550

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02400
B02400
C02400
D02400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A118262612.207002%
B118261601.352951%
C11826690.583460%
D118262742.316929%

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 13915 11823 0 0 0.00% 0.00%
B 13914 11822 0 0 0.00% 0.00%
C 13914 11823 0 0 0.00% 0.00%
D 13914 11820 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 7 110 498 7.92 165 155 43.3
A 0 29 497 7.89 165 155 43.3
A 15 236 489 7.71 165 155 43.3
B 2 9 625 13.45 165 157 34.8
B 2 8 491 9.6 165 157 34.8
B 3 17 456 8.59 165 157 34.8
C 1 81 527 7.95 170 159 46.3
C 3 203 493 7.21 170 159 46.3
C 1 80 471 6.74 170 159 46.3
D 15 63 420 6.25 155 141 44.6
D 7 3 402 5.85 155 141 44.6
D 15 47 401 5.83 155 141 44.6

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