ASTROSAT CZTI

Data Quality Report

Orbit 01289

Creation date: 2024-06-27T14:10:27.413563
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_002T02_9000000230_01289cztM0_level2.evt modeM0/AS1G04_002T02_9000000230_01289cztM0_level2_quad_clean.evt
Size (bytes)1,177,770,24091,615,680
Size1.1 GB 87.4 MB
Events in quadrant A7,156,284611,457
Events in quadrant B7,757,041621,837
Events in quadrant C6,993,644599,159
Events in quadrant D13,363,568519,703

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0255662
B0273451
C0250941
D0441671

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6038611.010268%
B6038260.430606%
C6038370.612786%
D6038163427.061941%

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 7278 6039 259 259 3.56% 4.29%
B 7278 6038 361 361 4.96% 5.98%
C 7278 6039 195 195 2.68% 3.23%
D 7278 6038 3495 3495 48.02% 57.88%

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 4 32 194148 444.59 1812 1825 432.6
A 11 79 8069 14.43 1812 1825 432.6
A 3 111 5890 9.4 1812 1825 432.6
B 10 213 196476 439.73 1885 1894 442.5
B 12 52 132279 294.65 1885 1894 442.5
B 8 4 89759 198.56 1885 1894 442.5
C 15 241 267429 570.96 1678 1735 465.3
C 9 54 120236 254.65 1678 1735 465.3
C 3 111 19953 39.15 1678 1735 465.3
D 13 169 7142349 15437.06 1501 1553 462.6
D 1 83 272884 586.57 1501 1553 462.6
D 10 84 227870 489.25 1501 1553 462.6

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