ASTROSAT CZTI

Data Quality Report

Orbit 06167

Creation date: 2024-06-27T15:03:40.016705
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_006T01_9000000802_06167cztM0_level2.evt modeM0/AS1A02_006T01_9000000802_06167cztM0_level2_quad_clean.evt
Size (bytes)455,806,080105,422,400
Size434.7 MB 100.5 MB
Events in quadrant A3,467,192687,485
Events in quadrant B3,390,313703,755
Events in quadrant C3,203,937677,189
Events in quadrant D3,280,311650,454

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147893
B0146192
C0142882
D0147702

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68001492.191176%
B68001291.897059%
C6800610.897059%
D68001001.470588%

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 9345 6802 8 8 0.09% 0.12%
B 9345 6802 4 4 0.04% 0.06%
C 9345 6802 0 0 0.00% 0.00%
D 9345 6802 29 29 0.31% 0.43%

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 8 15 207174 1230.93 824 807 167.7
A 0 50 64276 378.58 824 807 167.7
A 4 2 25193 145.46 824 807 167.7
B 0 219 47830 295.88 835 817 158.9
B 4 81 39423 242.97 835 817 158.9
B 3 64 36039 221.67 835 817 158.9
C 12 16 99263 532.43 794 797 184.9
C 1 16 6303 29.77 794 797 184.9
C 13 61 6222 29.33 794 797 184.9
D 13 169 128015 661.56 786 761 192.4
D 2 14 68471 352.0 786 761 192.4
D 5 97 42373 216.33 786 761 192.4

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