ASTROSAT CZTI

Data Quality Report

Orbit 15992

Creation date: 2024-06-27T17:16:13.713594
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/AS1G08_046T09_9000002358_15992cztM0_level2.evt modeM0/AS1G08_046T09_9000002358_15992cztM0_level2_quad_clean.evt
Size (bytes)230,469,12053,893,440
Size219.8 MB 51.4 MB
Events in quadrant A1,569,385357,737
Events in quadrant B1,972,635354,164
Events in quadrant C1,566,382338,782
Events in quadrant D1,638,198339,806

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A069300
B079910
C068530
D072060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0680
B0680
C0680
D0680

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A340220.058789%
B3402351.028807%
C340250.146972%
D3402170.499706%

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 3403 3403 2 2 0.06% 0.06%
B 3403 3403 29 29 0.85% 0.85%
C 3403 3403 0 0 0.00% 0.00%
D 3403 3403 14 14 0.41% 0.41%

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 15 239 33244 412.2 391 384 79.7
A 13 210 19119 235.01 391 384 79.7
A 12 96 7029 83.36 391 384 79.7
B 7 220 149211 2036.68 387 378 73.1
B 5 65 118914 1622.09 387 378 73.1
B 10 245 38724 524.74 387 378 73.1
C 14 238 57229 641.75 375 377 88.6
C 3 233 39544 442.12 375 377 88.6
C 0 207 6259 66.4 375 377 88.6
D 10 199 45631 482.32 383 372 93.8
D 2 152 36762 387.8 383 372 93.8
D 7 38 28459 299.32 383 372 93.8

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