ASTROSAT CZTI

Data Quality Report

Orbit 30244

Creation date: 2024-06-27T20:12:37.141393
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_007T01_9000004350_30244cztM0_level2.evt modeM0/AS1A10_007T01_9000004350_30244cztM0_level2_quad_clean.evt
Size (bytes)568,391,04081,777,600
Size542.1 MB 78.0 MB
Events in quadrant A3,550,125492,341
Events in quadrant B5,649,129495,213
Events in quadrant C3,661,268489,707
Events in quadrant D3,851,860484,095

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152541
B0224743
C0152941
D0158321

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73971231.662836%
B73971912.582128%
C73971562.108963%
D7397931.257266%

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 7652 7397 0 0 0.00% 0.00%
B 7652 7397 7 7 0.09% 0.09%
C 7652 7398 0 0 0.00% 0.00%
D 7652 7397 2 2 0.03% 0.03%

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 13 254 14557 73.5 915 896 185.9
A 8 192 11315 56.06 915 896 185.9
A 3 137 9648 47.09 915 896 185.9
B 6 159 2060335 11744.19 897 873 175.4
B 5 172 26386 145.49 897 873 175.4
B 0 229 23224 127.46 897 873 175.4
C 14 238 143643 684.2 880 885 208.7
C 3 233 54683 257.84 880 885 208.7
C 2 114 17792 81.03 880 885 208.7
D 8 195 315471 1419.28 890 870 221.7
D 1 52 96847 432.99 890 870 221.7
D 2 234 35766 157.43 890 870 221.7

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