ASTROSAT CZTI

Data Quality Report

Orbit 10980

Creation date: 2024-06-27T16:06:30.030438
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/AS1G08_027T06_9000001594_10980cztM0_level2.evt modeM0/AS1G08_027T06_9000001594_10980cztM0_level2_quad_clean.evt
Size (bytes)532,863,36071,251,200
Size508.2 MB 68.0 MB
Events in quadrant A3,948,744416,359
Events in quadrant B4,685,489426,436
Events in quadrant C3,114,199426,973
Events in quadrant D3,916,575402,217

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0164393
B0184592
C0142072
D0163212

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69693334.778304%
B69694065.825800%
C6969300.430478%
D69692052.941599%

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 8635 6971 262 262 3.03% 3.76%
B 8635 6970 224 224 2.59% 3.21%
C 8635 6971 1 1 0.01% 0.01%
D 8635 6971 153 153 1.77% 2.19%

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 15 223 330503 2005.54 806 788 164.4
A 8 5 262342 1590.94 806 788 164.4
A 15 239 210705 1276.85 806 788 164.4
B 4 239 1349075 8653.8 813 794 155.8
B 0 214 75886 481.97 813 794 155.8
B 4 81 30083 187.99 813 794 155.8
C 1 3 12145 60.87 795 798 186.4
C 13 61 5849 27.09 795 798 186.4
C 12 4 3803 16.12 795 798 186.4
D 1 52 714788 3738.56 778 753 191.0
D 8 195 83538 433.44 778 753 191.0
D 10 253 41290 212.24 778 753 191.0

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