ASTROSAT CZTI

Data Quality Report

Orbit 01329

Creation date: 2024-06-27T14:11:03.607118
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/AS1G04_002T02_9000000230_01329cztM0_level2.evt modeM0/AS1G04_002T02_9000000230_01329cztM0_level2_quad_clean.evt
Size (bytes)1,057,982,40098,821,440
Size1009.0 MB 94.2 MB
Events in quadrant A7,569,879643,207
Events in quadrant B8,595,517648,832
Events in quadrant C8,039,703636,614
Events in quadrant D7,416,659622,263

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270362
B0300631
C0283551
D0265221

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6334280.442059%
B6334470.742027%
C633450.078939%
D6334791.247237%

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 7494 6335 202 202 2.70% 3.19%
B 7494 6334 575 575 7.67% 9.08%
C 7494 6334 284 284 3.79% 4.48%
D 7494 6335 318 318 4.24% 5.02%

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 4 32 117076 253.36 1895 1909 454.6
A 14 5 65519 139.94 1895 1909 454.6
A 12 243 47218 99.68 1895 1909 454.6
B 8 4 800528 1735.03 1984 1994 460.2
B 12 52 64728 136.31 1984 1994 460.2
B 6 53 61138 128.51 1984 1994 460.2
C 3 9 553130 1089.36 1827 1893 506.0
C 15 241 311213 611.28 1827 1893 506.0
C 3 111 20016 35.81 1827 1893 506.0
D 10 84 522599 957.5 1761 1824 543.9
D 1 83 84465 151.94 1761 1824 543.9
D 2 88 54403 96.67 1761 1824 543.9

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