ASTROSAT CZTI

Data Quality Report

Orbit 09249

Creation date: 2024-06-27T15:43:23.858152
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/AS1G07_003T01_9000001290_09249cztM0_level2.evt modeM0/AS1G07_003T01_9000001290_09249cztM0_level2_quad_clean.evt
Size (bytes)412,971,84077,253,120
Size393.8 MB 73.7 MB
Events in quadrant A3,413,063492,106
Events in quadrant B2,997,901499,406
Events in quadrant C2,709,562481,653
Events in quadrant D2,995,555464,459

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139442
B0126142
C0119022
D0128722

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5743560.975100%
B5743410.713913%
C5743270.470138%
D5743611.062163%

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 6983 5744 14 14 0.20% 0.24%
B 6983 5744 8 8 0.11% 0.14%
C 6983 5744 9 9 0.13% 0.16%
D 6983 5744 40 40 0.57% 0.70%

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 8 5 606842 4189.27 708 695 144.7
A 13 251 46915 319.44 708 695 144.7
A 5 16 15548 102.65 708 695 144.7
B 4 173 90894 663.53 712 698 135.9
B 4 48 59163 430.1 712 698 135.9
B 0 219 30904 222.21 712 698 135.9
C 14 234 56169 351.69 679 684 157.8
C 13 61 5125 28.15 679 684 157.8
C 8 222 4496 24.16 679 684 157.8
D 12 233 205889 1159.95 670 653 176.9
D 1 52 126281 710.02 670 653 176.9
D 7 71 84442 473.56 670 653 176.9

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