ASTROSAT CZTI

Data Quality Report

Orbit 49666

Creation date: 2024-12-09T14:54:49.443238
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/AS1T05_233T01_9000006438_49666cztM0_level2.fits modeM0/AS1T05_233T01_9000006438_49666cztM0_level2_quad_clean.evt
Size (bytes)1,228,288,32037,615,680
Size1.1 GB 35.9 MB
Events in quadrant A15,021,85473,020
Events in quadrant B5,225,016618,470
Events in quadrant C9,129,7702,618
Events in quadrant D15,612,70213,150

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0488601
B0197311
C0313641
D0507211

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6180569492.135922%
B618071111.504854%
C6181616499.724964%
D6181606998.187995%

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 7270 6181 5494 5494 75.57% 88.89%
B 7270 6181 436 436 6.00% 7.05%
C 7270 6179 842 842 11.58% 13.63%
D 7271 6181 5385 5385 74.06% 87.12%

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 5774643 45326.21 418 404 127.4
A 0 98 1669149 13099.2 418 404 127.4
A 3 130 1189689 9335.56 418 404 127.4
B 7 0 1180451 8361.05 663 644 141.1
B 4 206 456580 3231.13 663 644 141.1
B 10 57 147546 1041.06 663 644 141.1
C 15 180 3615995 147582.0 62 61 24.5
C 15 163 806845 32928.36 62 61 24.5
C 15 197 799464 32627.11 62 61 24.5
D 15 40 3865384 50720.63 184 173 76.2
D 9 49 1647746 21620.02 184 173 76.2
D 8 176 1349401 17705.03 184 173 76.2

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