ASTROSAT CZTI

Data Quality Report

Orbit 28293

Creation date: 2024-06-27T19:50:08.280028
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_102T06_9000004078_28293cztM0_level2.evt modeM0/AS1A10_102T06_9000004078_28293cztM0_level2_quad_clean.evt
Size (bytes)550,802,88079,793,280
Size525.3 MB 76.1 MB
Events in quadrant A3,851,076482,425
Events in quadrant B3,315,259508,453
Events in quadrant C3,307,012485,627
Events in quadrant D5,750,674469,680

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0159210
B0142310
C0140830
D0219100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67362824.186461%
B6736510.757126%
C67361001.484561%
D67366389.471496%

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 7706 6736 223 223 2.89% 3.31%
B 7706 6736 4 4 0.05% 0.06%
C 7706 6736 7 7 0.09% 0.10%
D 7706 6737 445 445 5.77% 6.61%

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 15 174 721064 4420.78 810 793 162.9
A 13 254 11081 63.14 810 793 162.9
A 3 137 7750 42.7 810 793 162.9
B 10 245 32158 199.9 820 798 156.9
B 4 200 29500 182.96 820 798 156.9
B 0 244 19572 119.67 820 798 156.9
C 14 238 126662 678.35 793 797 185.5
C 3 233 91464 488.65 793 797 185.5
C 13 61 5639 26.1 793 797 185.5
D 1 52 1376336 7412.1 773 752 185.6
D 8 195 827180 4453.07 773 752 185.6
D 12 250 376517 2024.75 773 752 185.6

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