ASTROSAT CZTI

Data Quality Report

Orbit 47663

Creation date: 2024-07-21T16:37:55.623728
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_082T01_9000006342_47663cztM0_level2.fits modeM0/AS1A13_082T01_9000006342_47663cztM0_level2_quad_clean.evt
Size (bytes)447,508,800103,155,840
Size426.8 MB 98.4 MB
Events in quadrant A6,270,383684,838
Events in quadrant B3,213,556705,987
Events in quadrant C2,756,385687,544
Events in quadrant D3,858,126624,675

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0236331
B0133101
C0123911
D0153801

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60152313.840399%
B60161592.642952%
C6016530.880984%
D60161823.025266%

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 7175 6015 24 24 0.33% 0.40%
B 7176 6017 48 48 0.67% 0.80%
C 7176 6017 0 0 0.00% 0.00%
D 7176 6017 111 111 1.55% 1.84%

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 3362919 22589.53 712 697 148.8
A 9 191 148535 993.27 712 697 148.8
A 13 6 8684 53.66 712 697 148.8
B 5 172 227139 1626.9 705 682 139.2
B 15 54 44102 311.94 705 682 139.2
B 0 200 43804 309.79 705 682 139.2
C 14 254 29162 171.57 697 700 165.9
C 12 2 10713 60.36 697 700 165.9
C 13 61 4607 23.55 697 700 165.9
D 2 249 532600 3040.23 704 681 175.0
D 10 181 441763 2521.05 704 681 175.0
D 12 2 85901 487.08 704 681 175.0

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