ASTROSAT CZTI

Data Quality Report

Orbit 30330

Creation date: 2024-06-27T20:13:48.445111
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/AS1A10_071T29_9000004358_30330cztM0_level2.evt modeM0/AS1A10_071T29_9000004358_30330cztM0_level2_quad_clean.evt
Size (bytes)605,295,36083,266,560
Size577.3 MB 79.4 MB
Events in quadrant A3,776,778509,786
Events in quadrant B5,842,131509,735
Events in quadrant C3,778,728493,698
Events in quadrant D4,416,754477,191

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160371
B0232321
C0160171
D0184441

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76292353.080351%
B76303294.311927%
C76302383.119266%
D76304125.399738%

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 7699 7630 0 0 0.00% 0.00%
B 7700 7630 3 3 0.04% 0.04%
C 7700 7630 1 1 0.01% 0.01%
D 7700 7630 243 243 3.16% 3.18%

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 14 239 84329 432.25 948 928 192.9
A 5 203 29206 146.56 948 928 192.9
A 13 254 13902 67.24 948 928 192.9
B 6 159 2110682 11444.58 933 907 184.3
B 6 36 27469 144.09 933 907 184.3
B 0 190 25182 131.68 933 907 184.3
C 14 238 151901 698.99 908 912 216.0
C 3 233 40559 183.54 908 912 216.0
C 2 114 17830 78.32 908 912 216.0
D 13 104 756292 3183.22 901 882 237.3
D 2 250 121773 509.42 901 882 237.3
D 8 195 93890 391.93 901 882 237.3

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