ASTROSAT CZTI

Data Quality Report

Orbit 07190

Creation date: 2024-06-27T15:16:51.378806
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/AS1A02_176T01_9000000980_07190cztM0_level2.evt modeM0/AS1A02_176T01_9000000980_07190cztM0_level2_quad_clean.evt
Size (bytes)444,850,560118,529,280
Size424.2 MB 113.0 MB
Events in quadrant A2,967,891794,574
Events in quadrant B3,119,139813,850
Events in quadrant C2,823,487788,793
Events in quadrant D4,123,111742,517

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133383
B0136712
C0130622
D0168512

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6451270.418540%
B6451400.620059%
C645190.139513%
D64511141.767168%

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 7561 6451 2 2 0.03% 0.03%
B 7561 6452 0 0 0.00% 0.00%
C 7561 6452 0 0 0.00% 0.00%
D 7561 6452 71 71 0.94% 1.10%

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 14 238 35533 229.37 745 731 151.7
A 3 1 30264 194.65 745 731 151.7
A 13 14 12154 75.29 745 731 151.7
B 0 214 99802 687.89 760 743 144.0
B 0 219 33916 230.36 760 743 144.0
B 0 229 13707 90.03 760 743 144.0
C 13 61 5826 30.33 722 724 168.2
C 8 222 4149 20.36 722 724 168.2
C 14 67 2385 9.87 722 724 168.2
D 8 195 949395 5501.68 710 687 172.4
D 14 34 214911 1242.31 710 687 172.4
D 2 14 114434 659.63 710 687 172.4

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