ASTROSAT CZTI

Data Quality Report

Orbit 46843

Creation date: 2024-06-27T23:28:23.609341
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/AS1A13_053T01_9000006274_46843cztM0_level2.fits modeM0/AS1A13_053T01_9000006274_46843cztM0_level2_quad_clean.evt
Size (bytes)550,776,960123,143,040
Size525.3 MB 117.4 MB
Events in quadrant A6,880,654832,187
Events in quadrant B4,107,778840,199
Events in quadrant C3,706,773808,224
Events in quadrant D5,088,017705,830

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250780
B0175425
C01680917
D0210380

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7799881.128350%
B77961562.001026%
C7795630.808210%
D77995757.372740%

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 7799 7799 1 1 0.01% 0.01%
B 7798 7797 51 51 0.65% 0.65%
C 7799 7797 26 26 0.33% 0.33%
D 7799 7799 398 398 5.10% 5.10%

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 10 83 3519985 19780.68 855 836 177.9
A 13 6 34468 189.04 855 836 177.9
A 13 254 12696 66.66 855 836 177.9
B 3 112 194026 1145.91 848 818 168.6
B 7 221 164168 968.82 848 818 168.6
B 12 3 156550 923.64 848 818 168.6
C 14 254 209620 1052.46 846 849 198.4
C 1 241 183740 921.99 846 849 198.4
C 14 67 7338 32.71 846 849 198.4
D 13 249 1841320 9069.63 817 790 202.9
D 2 249 51012 247.48 817 790 202.9
D 2 234 40499 195.68 817 790 202.9

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