ASTROSAT CZTI

Data Quality Report

Orbit 03301

Creation date: 2024-06-27T14:27:20.011278
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_241T02_9000000448_03301cztM0_level2.evt modeM0/AS1G05_241T02_9000000448_03301cztM0_level2_quad_clean.evt
Size (bytes)452,301,12073,992,960
Size431.3 MB 70.6 MB
Events in quadrant A2,968,059451,481
Events in quadrant B3,836,939459,570
Events in quadrant C3,164,531454,919
Events in quadrant D3,299,524434,033

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131393
B0155202
C0136902
D0143222

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6305881.395718%
B63051181.871531%
C63051041.649485%
D63051051.665345%

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 7430 6307 10 10 0.13% 0.16%
B 7430 6307 28 28 0.38% 0.44%
C 7430 6307 39 39 0.52% 0.62%
D 7430 6307 46 46 0.62% 0.73%

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 42290 272.36 747 731 152.6
A 7 16 26049 165.92 747 731 152.6
A 0 226 13413 83.11 747 731 152.6
B 15 204 635104 4345.57 757 741 146.0
B 2 249 206921 1412.39 757 741 146.0
B 14 167 70116 475.24 757 741 146.0
C 1 192 150022 873.38 730 735 170.9
C 14 223 133852 778.78 730 735 170.9
C 8 208 9773 52.87 730 735 170.9
D 13 223 230710 1298.74 731 710 177.1
D 12 1 214770 1208.73 731 710 177.1
D 2 31 36816 203.88 731 710 177.1

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