ASTROSAT CZTI

Data Quality Report

Orbit 46200

Creation date: 2024-06-27T23:20:19.850637
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_093T40_9000006182_46200cztM0_level2.fits modeM0/AS1A13_093T40_9000006182_46200cztM0_level2_quad_clean.evt
Size (bytes)576,927,360106,591,680
Size550.2 MB 101.7 MB
Events in quadrant A8,392,268685,852
Events in quadrant B3,416,856776,516
Events in quadrant C3,808,122702,395
Events in quadrant D5,242,391615,929

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0297802
B0141752
C0159422
D0199932

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A640584613.208431%
B6405771.202186%
C64053465.402030%
D640566810.429352%

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 7605 6406 418 418 5.50% 6.53%
B 7605 6406 16 16 0.21% 0.25%
C 7605 6406 280 280 3.68% 4.37%
D 7605 6406 626 626 8.23% 9.77%

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 10 83 3166640 21734.27 715 701 145.7
A 0 247 1624057 11144.39 715 701 145.7
A 15 14 650205 4458.87 715 701 145.7
B 3 112 384648 2691.87 736 714 142.6
B 5 172 81401 565.72 736 714 142.6
B 0 183 22421 152.19 736 714 142.6
C 14 254 985945 6104.4 697 700 161.4
C 12 2 87549 538.1 697 700 161.4
C 2 14 8662 49.33 697 700 161.4
D 13 249 1586098 9205.47 685 663 172.2
D 2 249 639283 3708.0 685 663 172.2
D 1 52 101995 588.36 685 663 172.2

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