ASTROSAT CZTI

Data Quality Report

Orbit 30008

Creation date: 2024-06-27T20:09:49.748889
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_071T02_9000004312_30008cztM0_level2.evt modeM0/AS1A10_071T02_9000004312_30008cztM0_level2_quad_clean.evt
Size (bytes)395,184,96042,937,920
Size376.9 MB 40.9 MB
Events in quadrant A1,774,714306,848
Events in quadrant B6,106,533191,394
Events in quadrant C1,828,449289,381
Events in quadrant D2,041,760285,751

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0660
B0660
C0660
D0660

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A071241
B0203181
C073081
D079401

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A31741103.465658%
B3174220369.407687%
C31741474.631380%
D31741253.938248%

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 4384 3175 0 0 0.00% 0.00%
B 4383 3174 1516 1516 34.59% 47.76%
C 4384 3175 0 0 0.00% 0.00%
D 4384 3175 39 39 0.89% 1.23%

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 8 192 16926 178.49 453 445 92.3
A 13 254 5681 56.71 453 445 92.3
A 5 203 4948 48.77 453 445 92.3
B 6 36 4182167 66347.58 319 312 63.0
B 6 159 664725 10541.3 319 312 63.0
B 12 111 7572 115.18 319 312 63.0
C 3 233 84521 833.49 426 429 100.9
C 14 238 72003 709.42 426 429 100.9
C 2 114 7579 70.87 426 429 100.9
D 7 80 197705 1864.32 430 420 105.8
D 8 195 137674 1297.03 430 420 105.8
D 2 120 41626 389.39 430 420 105.8

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