ASTROSAT CZTI

Data Quality Report

Orbit 10723

Creation date: 2024-06-27T16:03:19.141807
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/AS1A03_084T01_9000001544_10723cztM0_level2.evt modeM0/AS1A03_084T01_9000001544_10723cztM0_level2_quad_clean.evt
Size (bytes)474,235,20084,078,720
Size452.3 MB 80.2 MB
Events in quadrant A2,976,839549,986
Events in quadrant B4,040,946543,674
Events in quadrant C2,756,386534,769
Events in quadrant D4,177,145494,886

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128422
B0159331
C0124111
D0164721

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6049661.091089%
B60492864.728054%
C6049340.562076%
D60492484.099851%

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 7239 6050 5 5 0.07% 0.08%
B 7239 6049 170 170 2.35% 2.81%
C 7239 6050 0 0 0.00% 0.00%
D 7239 6050 187 187 2.58% 3.09%

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 13 251 39608 257.86 740 724 150.8
A 1 162 27545 177.87 740 724 150.8
A 15 174 20690 132.41 740 724 150.8
B 4 239 1010788 7278.56 729 713 138.8
B 0 219 57476 409.03 729 713 138.8
B 15 204 54682 388.9 729 713 138.8
C 13 61 5409 28.61 705 711 164.2
C 14 234 4103 20.66 705 711 164.2
C 1 0 2623 11.64 705 711 164.2
D 10 199 624214 3742.17 694 674 166.6
D 8 195 274345 1642.44 694 674 166.6
D 5 222 176279 1053.89 694 674 166.6

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