ASTROSAT CZTI

Data Quality Report

Orbit 29254

Creation date: 2024-06-27T20:02:15.968299
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/AS1A10_115T01_9000004206_29254cztM0_level2.evt modeM0/AS1A10_115T01_9000004206_29254cztM0_level2_quad_clean.evt
Size (bytes)650,661,120108,377,280
Size620.5 MB 103.4 MB
Events in quadrant A3,175,350754,860
Events in quadrant B3,769,408756,517
Events in quadrant C7,093,820677,382
Events in quadrant D5,274,248686,890

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130851
B0151481
C0251915
D0197471

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A58081332.289945%
B58092113.632295%
C580892315.891873%
D58084668.023416%

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 7058 5809 0 0 0.00% 0.00%
B 7059 5810 45 45 0.64% 0.77%
C 7058 5809 226 226 3.20% 3.89%
D 7058 5809 283 283 4.01% 4.87%

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 13 254 15126 88.73 818 804 161.4
A 0 13 12618 73.19 818 804 161.4
A 3 137 7386 40.78 818 804 161.4
B 0 183 274940 1832.3 798 781 149.6
B 0 229 155259 1032.43 798 781 149.6
B 5 255 81213 537.55 798 781 149.6
C 3 233 3994375 23801.57 736 744 167.8
C 14 238 157509 934.3 736 744 167.8
C 14 254 59886 352.48 736 744 167.8
D 1 52 1275581 7060.53 767 748 180.6
D 8 195 626681 3466.67 767 748 180.6
D 13 153 230404 1271.93 767 748 180.6

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