ASTROSAT CZTI

Data Quality Report

Orbit 33060

Creation date: 2024-06-27T20:44:29.710524
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/AS1A11_080T01_9000004756_33060cztM0_level2.evt modeM0/AS1A11_080T01_9000004756_33060cztM0_level2_quad_clean.evt
Size (bytes)617,425,92077,676,480
Size588.8 MB 74.1 MB
Events in quadrant A2,569,685540,423
Events in quadrant B3,289,169539,222
Events in quadrant C2,882,089518,402
Events in quadrant D9,604,243387,526

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0107022
B0129621
C0116951
D0322211

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A522640.076540%
B52261653.157290%
C5226671.282051%
D5226252348.277842%

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 7199 5227 0 0 0.00% 0.00%
B 7199 5226 113 113 1.57% 2.16%
C 7199 5227 50 50 0.69% 0.96%
D 7199 5227 2496 2496 34.67% 47.75%

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 6 12084 87.3 658 648 131.0
A 13 254 10421 74.6 658 648 131.0
A 0 226 5698 38.55 658 648 131.0
B 5 172 311196 2542.92 653 641 122.1
B 10 246 90549 736.2 653 641 122.1
B 0 190 53511 432.92 653 641 122.1
C 0 10 182272 1248.22 635 644 145.5
C 7 221 176636 1209.49 635 644 145.5
C 1 23 16189 106.83 635 644 145.5
D 7 223 6095292 45036.27 513 502 135.3
D 8 195 1064013 7858.61 513 502 135.3
D 2 249 165601 1219.97 513 502 135.3

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