ASTROSAT CZTI

Data Quality Report

Orbit 48389

Creation date: 2024-09-09T08:29:20.955337
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_029T01_9000006426_48389cztM0_level2.fits modeM0/AS1A13_029T01_9000006426_48389cztM0_level2_quad_clean.evt
Size (bytes)516,764,160108,190,080
Size492.8 MB 103.2 MB
Events in quadrant A7,072,481735,023
Events in quadrant B5,312,982696,082
Events in quadrant C2,875,263732,183
Events in quadrant D3,370,033664,719

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260902
B0200794
C0130961
D0144591

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64252724.233463%
B642475211.706102%
C6425320.498054%
D6426861.338313%

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 6427 87 87 1.14% 1.35%
B 7605 6427 570 570 7.50% 8.87%
C 7605 6427 0 0 0.00% 0.00%
D 7606 6428 48 48 0.63% 0.75%

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 10 83 3863800 25180.36 741 727 153.4
A 13 248 310201 2017.22 741 727 153.4
A 13 6 31533 200.8 741 727 153.4
B 5 255 1857686 13357.55 706 684 139.0
B 12 16 558747 4014.19 706 684 139.0
B 4 21 62689 446.01 706 684 139.0
C 15 208 9652 51.77 732 739 172.2
C 13 61 4828 23.75 732 739 172.2
C 12 2 4113 19.6 732 739 172.2
D 2 165 278863 1521.49 736 716 182.8
D 2 249 183934 1002.22 736 716 182.8
D 2 234 29018 154.81 736 716 182.8

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