ASTROSAT CZTI

Data Quality Report

Orbit 18543

Creation date: 2024-06-27T17:51:12.826006
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/AS1A05_082T12_9000002754_18543cztM0_level2.evt modeM0/AS1A05_082T12_9000002754_18543cztM0_level2_quad_clean.evt
Size (bytes)594,529,920102,666,240
Size567.0 MB 97.9 MB
Events in quadrant A4,958,966650,212
Events in quadrant B3,332,571708,427
Events in quadrant C3,181,868679,783
Events in quadrant D6,105,066630,606

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0188332
B0138392
C0134082
D0225042

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A630474211.770305%
B63041161.840102%
C6304881.395939%
D630479612.626904%

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 7559 6305 458 458 6.06% 7.26%
B 7559 6305 10 10 0.13% 0.16%
C 7559 6305 0 0 0.00% 0.00%
D 7559 6305 641 641 8.48% 10.17%

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 0 13 2002756 13032.45 762 746 153.6
A 14 111 15533 96.26 762 746 153.6
A 13 254 9949 59.91 762 746 153.6
B 3 64 58577 375.92 811 793 153.7
B 7 220 47657 304.88 811 793 153.7
B 4 80 29289 185.38 811 793 153.7
C 14 238 122690 670.31 784 790 181.9
C 13 61 5450 25.62 784 790 181.9
C 3 233 3999 17.65 784 790 181.9
D 7 238 2928115 16097.04 753 734 181.9
D 13 153 213670 1170.89 753 734 181.9
D 1 52 64116 348.52 753 734 181.9

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