ASTROSAT CZTI

Data Quality Report

Orbit 20240710_A13_037T05_9000006332_level2

Creation date: 2024-07-12T08:37:50.999379
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_037T05_9000006332cztM0_level2.fits modeM0/AS1A13_037T05_9000006332cztM0_level2_quad_clean.evt
Size (bytes)542,206,080564,209,280
Size517.1 MB 538.1 MB
Events in quadrant A3,156,0643,311,162
Events in quadrant B3,112,4003,399,821
Events in quadrant C3,241,3823,287,225
Events in quadrant D2,753,2942,933,610

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0770
B0770
C0770
D0770

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012280
B012280
C012260
D012280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02247260
B01431270
C01247050
D01524860

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6056627634.561965%
B6058318763.096578%
C605884160.686605%
D6057818543.060517%

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 68345 60583 0 0 0.00% 0.00%
B 68345 60581 0 0 0.00% 0.00%
C 68345 60609 0 0 0.00% 0.00%
D 68345 60592 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 2566 8.49 823 769 211.7
A 14 95 2369 7.56 823 769 211.7
A 7 30 2356 7.5 823 769 211.7
B 2 9 3021 13.91 821 782 160.9
B 2 8 2460 10.42 821 782 160.9
B 3 17 2288 9.35 821 782 160.9
C 3 202 2395 7.14 856 794 224.3
C 1 81 2373 7.04 856 794 224.3
C 3 203 2280 6.62 856 794 224.3
D 10 189 2085 6.14 791 717 222.8
D 6 67 1975 5.65 791 717 222.8
D 1 31 1963 5.59 791 717 222.8

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