ASTROSAT CZTI

Data Quality Report

Orbit 12522

Creation date: 2024-06-27T16:28:36.377840
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/AS1A04_230T01_9000001854_12522cztM0_level2.evt modeM0/AS1A04_230T01_9000001854_12522cztM0_level2_quad_clean.evt
Size (bytes)384,497,28087,667,200
Size366.7 MB 83.6 MB
Events in quadrant A2,826,327568,869
Events in quadrant B2,972,909579,083
Events in quadrant C2,617,102564,889
Events in quadrant D2,828,332531,490

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121662
B0127841
C0119771
D0127081

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5874180.306435%
B5874570.970378%
C587440.068097%
D5874440.749064%

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 6950 5876 0 0 0.00% 0.00%
B 6950 5876 17 17 0.24% 0.29%
C 6950 5876 0 0 0.00% 0.00%
D 6950 5876 35 35 0.50% 0.60%

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 1 162 42361 293.44 694 684 142.0
A 12 189 31824 219.25 694 684 142.0
A 1 178 24041 164.45 694 684 142.0
B 4 239 170208 1270.31 698 682 133.5
B 0 214 39516 291.0 698 682 133.5
B 0 230 21144 153.33 698 682 133.5
C 13 61 4884 26.85 671 675 156.8
C 12 4 1927 7.99 671 675 156.8
C 3 202 1537 5.5 671 675 156.8
D 1 52 174820 1107.82 659 642 157.2
D 8 195 73065 460.63 659 642 157.2
D 13 249 22706 140.33 659 642 157.2

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