ASTROSAT CZTI

Data Quality Report

Orbit 12544

Creation date: 2024-06-27T16:28:57.187802
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/AS1A04_130T01_9000001856_12544cztM0_level2.evt modeM0/AS1A04_130T01_9000001856_12544cztM0_level2_quad_clean.evt
Size (bytes)498,467,52088,813,440
Size475.4 MB 84.7 MB
Events in quadrant A3,743,113562,357
Events in quadrant B3,747,949561,018
Events in quadrant C3,021,966561,890
Events in quadrant D4,130,655539,495

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0154443
B0155232
C0136242
D0167162

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66631321.981090%
B66631852.776527%
C6663270.405223%
D66631121.680925%

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 7679 6665 60 60 0.78% 0.90%
B 7679 6665 94 94 1.22% 1.41%
C 7679 6665 1 1 0.01% 0.02%
D 7679 6665 56 56 0.73% 0.84%

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 8 15 153398 945.65 793 776 161.4
A 0 23 152059 937.35 793 776 161.4
A 1 162 145155 894.58 793 776 161.4
B 4 239 507311 3346.77 789 767 151.4
B 0 230 59588 388.63 789 767 151.4
B 15 222 32731 211.19 789 767 151.4
C 13 61 5705 27.33 774 778 180.3
C 3 233 1971 6.62 774 778 180.3
C 3 202 1933 6.41 774 778 180.3
D 1 52 383361 2061.2 773 751 185.6
D 8 195 273602 1469.91 773 751 185.6
D 1 255 234459 1259.04 773 751 185.6

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