ASTROSAT CZTI

Data Quality Report

Orbit 22170

Creation date: 2024-06-27T18:37:43.029483
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/AS1A07_007T03_9000003280_22170cztM0_level2.evt modeM0/AS1A07_007T03_9000003280_22170cztM0_level2_quad_clean.evt
Size (bytes)437,688,00097,064,640
Size417.4 MB 92.6 MB
Events in quadrant A3,074,058629,091
Events in quadrant B3,193,969638,173
Events in quadrant C3,164,501612,118
Events in quadrant D3,368,415594,272

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135762
B0137782
C0137182
D0146692

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6682210.314277%
B6682330.493864%
C6682600.897935%
D6682620.927866%

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 7687 6683 0 0 0.00% 0.00%
B 7687 6683 1 1 0.01% 0.01%
C 7687 6683 0 0 0.00% 0.00%
D 7687 6683 31 31 0.40% 0.46%

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 12400 72.55 796 780 160.2
A 0 226 6824 37.74 796 780 160.2
A 3 137 6732 37.16 796 780 160.2
B 3 64 25670 162.43 798 777 153.3
B 0 230 19909 124.84 798 777 153.3
B 12 111 18460 115.39 798 777 153.3
C 14 238 120937 661.86 773 778 181.5
C 10 22 11759 60.49 773 778 181.5
C 8 128 10032 50.97 773 778 181.5
D 1 52 280750 1480.51 774 750 189.1
D 14 34 68171 356.49 774 750 189.1
D 15 145 33085 170.97 774 750 189.1

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