ASTROSAT CZTI

Data Quality Report

Orbit 05688

Creation date: 2024-06-27T14:57:58.941576
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_115T01_9000000734_05688cztM0_level2.evt modeM0/AS1G06_115T01_9000000734_05688cztM0_level2_quad_clean.evt
Size (bytes)441,671,04080,470,080
Size421.2 MB 76.7 MB
Events in quadrant A3,144,611497,950
Events in quadrant B3,425,261503,561
Events in quadrant C3,157,949506,007
Events in quadrant D3,217,936487,668

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132905
B0140032
C0134824
D0136692

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63241111.755218%
B63251342.118577%
C6324951.502214%
D63251031.628458%

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 7575 6326 0 0 0.00% 0.00%
B 7575 6326 17 17 0.22% 0.27%
C 7575 6325 0 0 0.00% 0.00%
D 7575 6326 11 11 0.15% 0.17%

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 6 8234 45.68 812 794 162.9
A 12 194 8188 45.4 812 794 162.9
A 0 226 7960 44.0 812 794 162.9
B 11 51 94013 612.14 813 797 152.3
B 15 204 51137 330.58 813 797 152.3
B 0 214 30763 196.78 813 797 152.3
C 1 16 78723 437.6 787 792 178.1
C 13 61 6337 31.14 787 792 178.1
C 12 4 3669 16.15 787 792 178.1
D 2 152 101620 527.04 792 769 191.4
D 2 14 38049 194.82 792 769 191.4
D 2 136 27399 139.17 792 769 191.4

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