ASTROSAT CZTI

Data Quality Report

Orbit 05460

Creation date: 2024-06-27T14:55:28.111558
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/AS1T01_137T01_9000000694_05460cztM0_level2.evt modeM0/AS1T01_137T01_9000000694_05460cztM0_level2_quad_clean.evt
Size (bytes)232,528,32025,009,920
Size221.8 MB 23.9 MB
Events in quadrant A1,336,651133,685
Events in quadrant B1,544,985133,891
Events in quadrant C1,628,395130,195
Events in quadrant D2,305,261123,731

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0680
B0680
C0680
D0680

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A066500
B069510
C075020
D091242

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A330510.030257%
B3305150.453858%
C33051183.570348%
D3304852.572639%

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 3305 3305 1 1 0.03% 0.03%
B 3305 3305 10 10 0.30% 0.30%
C 3305 3305 98 98 2.97% 2.97%
D 3305 3305 81 81 2.45% 2.45%

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 0 50 11227 153.75 341 333 70.9
A 0 247 5119 67.55 341 333 70.9
A 0 226 3743 48.13 341 333 70.9
B 15 204 88665 1302.71 348 340 67.8
B 4 48 48383 708.59 348 340 67.8
B 11 51 28195 410.83 348 340 67.8
C 1 241 335746 4344.46 329 331 77.2
C 14 67 3550 41.69 329 331 77.2
C 13 61 2585 29.19 329 331 77.2
D 2 33 688887 8323.04 330 320 82.7
D 11 192 122766 1480.06 330 320 82.7
D 2 152 94042 1132.86 330 320 82.7

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