ASTROSAT CZTI

Data Quality Report

Orbit 32223

Creation date: 2024-06-27T20:37:46.491114
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/AS1A10_057T01_9000004692_32223cztM0_level2.evt modeM0/AS1A10_057T01_9000004692_32223cztM0_level2_quad_clean.evt
Size (bytes)586,192,320111,663,360
Size559.0 MB 106.5 MB
Events in quadrant A3,269,023765,546
Events in quadrant B5,547,569779,045
Events in quadrant C3,938,730652,573
Events in quadrant D4,551,199725,711

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139223
B0210752
C0160512
D0179192

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6573250.380344%
B65732113.210102%
C6573191229.088696%
D65731682.555911%

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 7848 6574 0 0 0.00% 0.00%
B 7848 6574 44 44 0.56% 0.67%
C 7848 6573 8 8 0.10% 0.12%
D 7848 6574 97 97 1.24% 1.48%

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 15 174 30290 178.68 833 818 164.9
A 13 6 17177 99.18 833 818 164.9
A 13 254 13436 76.5 833 818 164.9
B 6 159 1862301 12074.68 831 812 154.2
B 5 172 158319 1021.68 831 812 154.2
B 4 80 119985 773.02 831 812 154.2
C 14 254 652740 4364.14 645 653 149.4
C 14 238 571066 3817.53 645 653 149.4
C 0 10 96375 640.63 645 653 149.4
D 8 195 713354 3709.27 802 779 192.1
D 2 250 446757 2321.52 802 779 192.1
D 13 249 124171 642.31 802 779 192.1

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
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter