ASTROSAT CZTI

Data Quality Report

Orbit 06804

Creation date: 2024-06-27T15:11:52.019285
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_086T02_9000000936_06804cztM0_level2.evt modeM0/AS1G06_086T02_9000000936_06804cztM0_level2_quad_clean.evt
Size (bytes)464,581,44087,088,320
Size443.1 MB 83.1 MB
Events in quadrant A3,134,257555,891
Events in quadrant B3,459,473559,925
Events in quadrant C3,311,036545,158
Events in quadrant D3,724,939524,316

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0230

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136133
B0144372
C0138992
D0154452

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6480691.064815%
B64801271.959877%
C6480180.277778%
D6480811.250000%

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 7680 6481 1 1 0.01% 0.02%
B 7680 6481 35 35 0.46% 0.54%
C 7680 6481 0 0 0.00% 0.00%
D 7680 6481 35 35 0.46% 0.54%

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 39014 237.41 797 780 161.0
A 14 111 12118 70.4 797 780 161.0
A 0 226 7733 43.17 797 780 161.0
B 4 81 152364 990.45 802 786 153.0
B 11 51 71313 460.84 802 786 153.0
B 0 228 57912 373.28 802 786 153.0
C 9 247 284541 1583.88 771 774 179.2
C 12 16 18283 97.73 771 774 179.2
C 13 61 6140 29.95 771 774 179.2
D 8 195 421962 2249.55 762 738 187.2
D 2 33 178097 947.19 762 738 187.2
D 2 216 87899 465.48 762 738 187.2

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