ASTROSAT CZTI

Data Quality Report

Orbit 02298

Creation date: 2024-06-27T14:15:58.918913
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_043T01_9000000350_02298cztM0_level2.evt modeM0/AS1T01_043T01_9000000350_02298cztM0_level2_quad_clean.evt
Size (bytes)56,793,60011,410,560
Size54.2 MB 10.9 MB
Events in quadrant A344,72070,529
Events in quadrant B356,42072,140
Events in quadrant C375,59969,992
Events in quadrant D583,43566,821

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A016670
B016670
C017180
D023660

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A83300.000000%
B83300.000000%
C83300.000000%
D83310.120048%

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 833 833 0 0 0.00% 0.00%
B 832 832 0 0 0.00% 0.00%
C 833 833 0 0 0.00% 0.00%
D 833 833 0 0 0.00% 0.00%

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 0 226 982 44.57 89 87 20.1
A 12 194 942 42.58 89 87 20.1
A 13 9 361 13.65 89 87 20.1
B 4 48 4373 220.44 90 88 19.4
B 8 3 2454 121.72 90 88 19.4
B 12 111 1383 66.62 90 88 19.4
C 5 234 23131 1063.45 86 87 21.7
C 9 247 13961 640.27 86 87 21.7
C 13 61 805 33.13 86 87 21.7
D 9 66 259326 11955.29 84 82 21.7
D 5 233 3145 141.25 84 82 21.7
D 13 169 1639 71.8 84 82 21.7

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