ASTROSAT CZTI

Data Quality Report

Orbit 06585

Creation date: 2024-06-27T15:09:04.655590
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/AS1G06_169T01_9000000886_06585cztM0_level2.evt modeM0/AS1G06_169T01_9000000886_06585cztM0_level2_quad_clean.evt
Size (bytes)296,867,52054,907,200
Size283.1 MB 52.4 MB
Events in quadrant A2,115,147341,955
Events in quadrant B2,261,819350,181
Events in quadrant C2,032,323338,921
Events in quadrant D2,283,965324,666

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090672
B095341
C090011
D098141

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0880
B0880
C0880
D0880

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4360300.688073%
B4360541.238532%
C4360220.504587%
D4360581.330275%

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 5655 4361 0 0 0.00% 0.00%
B 5655 4361 5 5 0.09% 0.11%
C 5655 4361 0 0 0.00% 0.00%
D 5655 4361 35 35 0.62% 0.80%

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 42216 381.45 536 524 109.3
A 0 226 5234 43.09 536 524 109.3
A 12 194 4784 38.98 536 524 109.3
B 4 81 77215 734.29 541 528 104.4
B 0 219 22583 211.18 541 528 104.4
B 4 80 16727 155.11 541 528 104.4
C 13 61 4022 28.93 520 522 121.0
C 1 16 3256 22.6 520 522 121.0
C 12 4 1487 7.98 520 522 121.0
D 2 33 106893 828.89 518 503 128.4
D 14 34 100040 775.5 518 503 128.4
D 2 136 50543 389.87 518 503 128.4

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