ASTROSAT CZTI

Data Quality Report

Orbit 01249

Creation date: 2024-06-27T14:09:49.638375
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/AS1G04_011T02_9000000226_01249cztM0_level2.evt modeM0/AS1G04_011T02_9000000226_01249cztM0_level2_quad_clean.evt
Size (bytes)1,382,581,440103,135,680
Size1.3 GB 98.4 MB
Events in quadrant A8,480,124704,326
Events in quadrant B16,462,420541,480
Events in quadrant C8,655,170692,123
Events in quadrant D7,802,238686,818

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0302551
B0543690
C0307730
D0282650

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A714000.000000%
B7140280639.299720%
C714070.098039%
D714060.084034%

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 7139 7139 195 195 2.73% 2.73%
B 7139 7139 4264 4264 59.73% 59.73%
C 7139 7139 235 235 3.29% 3.29%
D 7139 7139 127 127 1.78% 1.78%

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 12 243 18739 31.31 2202 2215 527.8
A 11 79 10473 15.65 2202 2215 527.8
A 13 235 7873 10.72 2202 2215 527.8
B 2 32 8392698 18744.86 1887 1893 447.6
B 8 4 378864 842.14 1887 1893 447.6
B 12 52 260188 577.02 1887 1893 447.6
C 15 241 355245 614.84 2057 2129 574.3
C 5 234 102762 175.22 2057 2129 574.3
C 9 52 74483 125.98 2057 2129 574.3
D 13 70 77236 119.3 2030 2107 629.7
D 10 84 38801 58.27 2030 2107 629.7
D 10 85 36514 54.64 2030 2107 629.7

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