ASTROSAT CZTI

Data Quality Report

Orbit 08406

Creation date: 2024-06-27T15:32:11.764159
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/AS1A03_025T07_9000001182_08406cztM0_level2.evt modeM0/AS1A03_025T07_9000001182_08406cztM0_level2_quad_clean.evt
Size (bytes)315,843,84059,783,040
Size301.2 MB 57.0 MB
Events in quadrant A2,190,365373,554
Events in quadrant B2,305,494382,338
Events in quadrant C2,149,228373,523
Events in quadrant D2,591,073342,166

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01002
B01000
C01006
D01006

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A09981153
B010196157
C09975169
D011319157

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4832260.538079%
B4830280.579710%
C482480.165837%
D48301703.519669%

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 6023 4905 0 0 0.00% 0.00%
B 6023 4905 2 2 0.03% 0.04%
C 6023 4903 0 0 0.00% 0.00%
D 6023 4906 136 136 2.26% 2.77%

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 13 251 8313 66.27 565 552 117.1
A 13 248 5375 41.18 565 552 117.1
A 0 226 5293 40.48 565 552 117.1
B 0 214 71778 655.55 568 555 108.6
B 12 111 11743 102.97 568 555 108.6
B 11 111 9357 81.01 568 555 108.6
C 1 16 6912 49.43 549 552 128.7
C 13 61 4201 28.36 549 552 128.7
C 8 222 1966 10.99 549 552 128.7
D 1 52 402220 3080.91 532 515 130.4
D 4 95 50553 383.77 532 515 130.4
D 7 71 43054 326.26 532 515 130.4

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