ASTROSAT CZTI

Data Quality Report

Orbit 23511

Creation date: 2024-06-27T18:55:29.723809
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/AS1A07_112T01_9000003478_23511cztM0_level2.evt modeM0/AS1A07_112T01_9000003478_23511cztM0_level2_quad_clean.evt
Size (bytes)665,910,72079,977,600
Size635.1 MB 76.3 MB
Events in quadrant A3,651,779491,104
Events in quadrant B3,999,283494,531
Events in quadrant C4,096,048478,034
Events in quadrant D7,909,948433,665

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0156343
B0165722
C0169012
D0287132

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75341291.712238%
B75351812.402123%
C75352873.808892%
D7535135117.929662%

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 8434 7534 0 0 0.00% 0.00%
B 8435 7535 15 15 0.18% 0.20%
C 8435 7535 64 64 0.76% 0.85%
D 8435 7536 1109 1109 13.15% 14.72%

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 12200 58.95 947 926 191.3
A 3 137 8248 38.28 947 926 191.3
A 0 226 8042 37.21 947 926 191.3
B 0 189 218739 1219.87 936 914 178.6
B 15 32 30554 165.99 936 914 178.6
B 0 230 30048 163.16 936 914 178.6
C 8 208 310935 1457.68 898 901 212.7
C 14 238 141094 659.14 898 901 212.7
C 7 247 70311 326.34 898 901 212.7
D 1 52 3879005 18234.83 867 838 212.7
D 9 85 398571 1870.11 867 838 212.7
D 7 238 209465 980.95 867 838 212.7

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