ASTROSAT CZTI

Data Quality Report

Orbit 05094

Creation date: 2024-06-27T14:51:13.336983
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_105T01_9000000644_05094cztM0_level2.evt modeM0/AS1G05_105T01_9000000644_05094cztM0_level2_quad_clean.evt
Size (bytes)484,436,16072,141,120
Size462.0 MB 68.8 MB
Events in quadrant A2,996,633464,638
Events in quadrant B3,170,847470,089
Events in quadrant C2,901,325442,722
Events in quadrant D5,167,810360,469

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131163
B0134372
C0130752
D0198042

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6392781.220275%
B6392861.345432%
C6392520.813517%
D639297115.190864%

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 7642 6393 1 1 0.01% 0.02%
B 7642 6393 1 1 0.01% 0.02%
C 7642 6393 0 0 0.00% 0.00%
D 7642 6392 709 709 9.28% 11.09%

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 12 194 7574 43.62 777 761 156.2
A 0 226 7539 43.39 777 761 156.2
A 0 50 6185 34.73 777 761 156.2
B 15 204 77001 512.27 784 767 148.8
B 4 80 29468 192.86 784 767 148.8
B 12 111 13378 84.74 784 767 148.8
C 13 61 6240 32.2 741 745 170.7
C 12 4 5423 27.41 741 745 170.7
C 1 16 3533 16.34 741 745 170.7
D 12 22 1600643 9912.83 663 644 161.4
D 13 235 632142 3912.46 663 644 161.4
D 13 239 188247 1162.3 663 644 161.4

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