ASTROSAT CZTI

Data Quality Report

Orbit 32863

Creation date: 2024-06-27T20:42:47.194098
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/AS1A11_005T04_9000004742_32863cztM0_level2.evt modeM0/AS1A11_005T04_9000004742_32863cztM0_level2_quad_clean.evt
Size (bytes)485,827,20066,401,280
Size463.3 MB 63.3 MB
Events in quadrant A2,599,613415,297
Events in quadrant B3,247,426419,996
Events in quadrant C2,875,428414,416
Events in quadrant D5,604,426362,339

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0230

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0115183
B0131972
C0121472
D0206302

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5695150.263389%
B56951131.984197%
C5695290.509219%
D56955098.937665%

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 7098 5696 10 10 0.14% 0.18%
B 7098 5696 68 68 0.96% 1.19%
C 7098 5696 15 15 0.21% 0.26%
D 7098 5696 414 414 5.83% 7.27%

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 13 210 18257 131.17 662 648 134.3
A 9 143 17587 126.17 662 648 134.3
A 13 254 9815 68.28 662 648 134.3
B 5 172 316385 2476.82 664 645 127.5
B 0 197 199377 1558.95 664 645 127.5
B 0 230 40623 313.6 664 645 127.5
C 14 67 117199 776.04 645 650 150.2
C 3 233 90532 598.48 645 650 150.2
C 0 10 79605 525.72 645 650 150.2
D 7 80 1349293 8971.2 616 603 150.3
D 8 195 792300 5266.2 616 603 150.3
D 10 203 439355 2918.49 616 603 150.3

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