ASTROSAT CZTI

Data Quality Report

Orbit 05123

Creation date: 2024-06-27T14:51:37.187235
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/AS1G05_230T05_9000000648_05123cztM0_level2.evt modeM0/AS1G05_230T05_9000000648_05123cztM0_level2_quad_clean.evt
Size (bytes)528,431,04072,936,000
Size504.0 MB 69.6 MB
Events in quadrant A2,826,183466,315
Events in quadrant B3,239,932481,086
Events in quadrant C2,868,696482,401
Events in quadrant D6,653,546350,999

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124852
B0134981
C0125221
D0238071

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6117180.294262%
B6117811.324179%
C6117220.359653%
D6117138622.658166%

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 7392 6118 1 1 0.01% 0.02%
B 7392 6118 27 27 0.37% 0.44%
C 7392 6118 0 0 0.00% 0.00%
D 7391 6117 1166 1166 15.78% 19.06%

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 50 13111 83.22 730 715 149.0
A 12 194 7447 45.2 730 715 149.0
A 0 226 7197 43.52 730 715 149.0
B 8 3 170668 1221.47 740 724 139.1
B 4 48 102331 730.3 740 724 139.1
B 15 204 55011 390.19 740 724 139.1
C 12 4 8684 47.07 731 736 168.8
C 13 61 6012 31.25 731 736 168.8
C 1 16 2859 12.57 731 736 168.8
D 12 22 2223157 14520.22 629 610 153.1
D 13 239 1023528 6682.87 629 610 153.1
D 13 235 409845 2673.59 629 610 153.1

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