ASTROSAT CZTI

Data Quality Report

Orbit 06248

Creation date: 2024-06-27T15:04:42.474481
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_151T01_9000000818_06248cztM0_level2.evt modeM0/AS1A02_151T01_9000000818_06248cztM0_level2_quad_clean.evt
Size (bytes)438,387,84070,148,160
Size418.1 MB 66.9 MB
Events in quadrant A3,103,942414,905
Events in quadrant B3,194,294417,637
Events in quadrant C3,021,423418,202
Events in quadrant D3,499,448404,267

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139613
B0140532
C0137752
D0149392

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6728911.352556%
B67281121.664685%
C6728580.862069%
D6728891.322830%

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 7723 6728 1 1 0.01% 0.01%
B 7723 6728 28 28 0.36% 0.42%
C 7723 6728 0 0 0.00% 0.00%
D 7723 6728 20 20 0.26% 0.30%

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 15 236 79443 491.79 784 767 160.0
A 12 194 7566 42.5 784 767 160.0
A 0 226 7354 41.17 784 767 160.0
B 0 219 110544 732.88 789 770 149.8
B 4 81 15974 101.5 789 770 149.8
B 12 111 15470 98.14 789 770 149.8
C 13 61 5964 29.08 773 778 178.3
C 14 67 3209 13.63 773 778 178.3
C 8 222 2646 10.48 773 778 178.3
D 12 220 203820 1071.76 772 749 189.5
D 2 63 137038 719.3 772 749 189.5
D 2 152 109837 575.74 772 749 189.5

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