ASTROSAT CZTI

Data Quality Report

Orbit 05053

Creation date: 2024-06-27T14:50:42.395287
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/AS1G05_218T04_9000000640_05053cztM0_level2.evt modeM0/AS1G05_218T04_9000000640_05053cztM0_level2_quad_clean.evt
Size (bytes)525,533,76059,279,040
Size501.2 MB 56.5 MB
Events in quadrant A3,649,207337,393
Events in quadrant B3,420,825336,982
Events in quadrant C4,034,265327,043
Events in quadrant D4,350,624319,835

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152383
B0143482
C0163842
D0174452

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67904015.905744%
B67901482.179676%
C67901121.649485%
D67903945.802651%

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 7815 6791 23 23 0.29% 0.34%
B 7815 6791 3 3 0.04% 0.04%
C 7815 6791 4 4 0.05% 0.06%
D 7815 6791 216 216 2.76% 3.18%

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 14 111 279322 1645.64 830 811 169.2
A 15 174 106874 626.7 830 811 169.2
A 0 50 40583 235.0 830 811 169.2
B 4 48 46118 280.03 838 819 161.8
B 0 219 45889 278.62 838 819 161.8
B 15 204 41275 250.09 838 819 161.8
C 1 16 859906 4589.43 803 808 187.2
C 14 67 24762 127.97 803 808 187.2
C 5 207 14411 72.67 803 808 187.2
D 13 235 384750 1923.9 803 779 199.6
D 2 33 297452 1486.49 803 779 199.6
D 2 136 162476 810.19 803 779 199.6

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