ASTROSAT CZTI

Data Quality Report

Orbit 29585

Creation date: 2024-06-27T20:05:44.522343
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/AS1A10_093T01_9000004266_29585cztM0_level2.evt modeM0/AS1A10_093T01_9000004266_29585cztM0_level2_quad_clean.evt
Size (bytes)541,033,92097,680,960
Size516.0 MB 93.2 MB
Events in quadrant A3,109,780652,491
Events in quadrant B4,275,957671,478
Events in quadrant C3,459,604611,639
Events in quadrant D5,112,773582,541

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132352
B0169162
C0143632
D0194742

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6304150.237944%
B63041161.840102%
C63044086.472081%
D63042714.298858%

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 7584 6305 3 3 0.04% 0.05%
B 7584 6305 53 53 0.70% 0.84%
C 7584 6305 2 2 0.03% 0.03%
D 7584 6305 221 221 2.91% 3.51%

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 19548 118.02 799 783 159.0
A 13 254 11349 66.45 799 783 159.0
A 3 137 7338 41.23 799 783 159.0
B 0 189 1055128 7039.33 804 784 149.8
B 0 190 24249 156.66 804 784 149.8
B 12 111 17304 110.3 804 784 149.8
C 14 238 239422 1359.56 756 764 175.5
C 14 254 166719 945.39 756 764 175.5
C 3 233 55753 313.25 756 764 175.5
D 7 80 949642 5270.45 761 741 180.0
D 8 195 382828 2122.21 761 741 180.0
D 12 33 250282 1386.02 761 741 180.0

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