ASTROSAT CZTI

Data Quality Report

Orbit 14080

Creation date: 2024-06-27T16:50:05.785363
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/AS1G08_055T01_9000002076_14080cztM0_level2.evt modeM0/AS1G08_055T01_9000002076_14080cztM0_level2_quad_clean.evt
Size (bytes)495,806,40092,609,280
Size472.8 MB 88.3 MB
Events in quadrant A3,428,461601,997
Events in quadrant B4,357,211592,607
Events in quadrant C3,067,244592,861
Events in quadrant D3,725,435567,740

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142182
B0170041
C0133991
D0151151

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6442630.977957%
B64423064.750078%
C6442440.683018%
D64421572.437131%

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 7518 6444 5 5 0.07% 0.08%
B 7518 6444 125 125 1.66% 1.94%
C 7518 6444 0 0 0.00% 0.00%
D 7518 6444 79 79 1.05% 1.23%

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 15 222 224548 1399.09 801 785 159.9
A 12 189 96187 596.5 801 785 159.9
A 9 143 19476 116.87 801 785 159.9
B 10 16 1041956 7118.25 788 770 146.3
B 10 245 51527 347.01 788 770 146.3
B 4 173 42417 284.73 788 770 146.3
C 3 233 33057 181.72 776 778 177.6
C 0 207 8309 42.4 776 778 177.6
C 13 61 5626 27.29 776 778 177.6
D 10 157 288724 1557.81 768 749 184.9
D 8 195 215710 1162.84 768 749 184.9
D 2 152 112802 606.16 768 749 184.9

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