ASTROSAT CZTI

Data Quality Report

Orbit 03395

Creation date: 2024-06-27T14:28:26.083017
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/AS1G05_112T01_9000000452_03395cztM0_level2.evt modeM0/AS1G05_112T01_9000000452_03395cztM0_level2_quad_clean.evt
Size (bytes)916,200,000128,312,640
Size873.8 MB 122.4 MB
Events in quadrant A6,186,933744,059
Events in quadrant B6,878,667744,400
Events in quadrant C7,687,831727,767
Events in quadrant D6,055,693712,396

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02820
B02820
C02820
D02820

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0283172
B0290352
C0327282
D0285482

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A138491891.364719%
B138491971.422485%
C138492101.516355%
D138491631.176980%

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 14804 13852 5 5 0.03% 0.04%
B 14804 13852 9 9 0.06% 0.06%
C 14804 13852 38 38 0.26% 0.27%
D 14804 13852 15 15 0.10% 0.11%

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 0 118 35261 102.82 1591 1555 327.8
A 0 226 19177 53.75 1591 1555 327.8
A 12 194 16679 46.13 1591 1555 327.8
B 15 204 465379 1481.66 1610 1570 313.0
B 0 229 70040 218.73 1610 1570 313.0
B 14 167 26620 80.02 1610 1570 313.0
C 9 144 1189803 3287.12 1542 1551 361.5
C 1 192 276147 759.63 1542 1551 361.5
C 14 223 94180 256.24 1542 1551 361.5
D 13 223 76074 196.79 1550 1500 379.0
D 2 206 41319 105.08 1550 1500 379.0
D 10 34 26406 65.72 1550 1500 379.0

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